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Conference Proceedings
Moreno-Azanza, M., Mateus O., Bauluz B., Coimbra R., Ezquerro L., & Núñez-Lahuerta C. (2021).  Hatching in Portugal: a new look to old eggs. XIX Encontro de Jovens Investigadores em Paleontologia. 22. Abstractmoreno-azanza_et_al_2021_eggs_ejip.pdf

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Marzola, M., Mateus O., Wings O., Klein N., Mìlan J., & L.B.Clemmensen (2016).  The herpetofauna from the Late Triassic of the Jameson Land Basin (East Greenland): review and updates. XIV EAVP Meeting. 182., Haarlem, The Netherlands: XIV EAVP Meeting, Programme and Abstract Book
Marzola, M., Mateus O., Wings O., Klein N., M{\`ılan J., & L.B.Clemmensen (2016).  The herpetofauna from the Late Triassic of the Jameson Land Basin (East Greenland): review and updates. XIV EAVP Meeting. 182., Haarlem, The Netherlands: XIV EAVP Meeting, Programme and Abstract Book Abstract
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Estraviz López, D., & Mateus O. (2018).  The history of the Quaternary vertebrate paleontology in Portugal. XVI Annual Meeting of the European Association of Vertebrate Palaeontologists. 65., Caparica, Portugal June 26th-July 1st, 2018: Abstract book of the XVI Annual Meeting of the European Association of Vertebrate Palaeontologists, Caparica, Portugal June 26th-July 1st, 2018. Abstractestraviz__mateus_2018_eavp_abstract.pdf

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Tschopp, E., Mateus O., Marzola M., & Norell M. (2018).  Indications for a horny beak and extensive supraorbital connective tissue in diplodocid sauropods. Annual Meeting of the Society of Vertebrate Paleontology. 229.: Society of Vertebrate Paleontologytschopp_et_al_2018_svp_abstract.pdf
Cavadas, B., Mestrinho N., & Mateus O. (2018).  Jurassic race: a collaborative pedagogical activity between paleontologists, mathematics and science education teachers. XVI Annual Meeting of the European Association of Vertebrate Palaeontologists. 41., Caparica, Portugal June 26th-July 1st, 2018: Abstract book of the XVI Annual Meeting of the European Association of Vertebrate Palaeontologists, Caparica, Portugal June 26th-July 1st, 2018. Abstractcavadas_et_al_2018_eavp_abstract.pdf

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Strganac, C., Jacobs L. L., Ferguson K. M., Polcyn M. J., Mateus O., Schulp A. S., & Morais M. L. (2013).  Late Cretaceous marine reptiles and cooling at the South Atlantic coast inferred through stable oxygen isotopes of Inoceramus from the Namibe Basin, Angola. Geological Society of America Abstracts with Programs. Vol. 45, No. 7, p.0.
Mateus, O. (2016).  Late Jurassic of Morrison Formation and Portugal tetrapods compared: a model to explain faunal exchange and similarity. Annual Meeting of the Society of Vertebrate Paleontology. 185., Salt Late City: Journal of Vertebrate Paleontology, Program and Abstracts, 2016 Abstractmateus_2016_late_jurassic_morrison_svp_abstract.pdf

The precursor of the North Atlantic existed between the North American and Iberian blocks from the earliest Jurassic Hettangian and has been ever expanding since. By the Kimmeridgian and Tithonian, when much of the Morrison Fm rocks were deposited, the proto-Atlantic was more than 300 km wide at 27° paleolatitude between North America and Iberia. Macrovertebrate paleontology reveals a unique story to the isolation of Iberia and instead suggest a paleogeographic land connection between North American and Iberia. Torvosaurus, Allosaurus, Ceratosaurus, Stegosaurus, Supersaurus and others have a distribution restricted to Morrison Formation in North America and Lourinhã Formation in Portugal. A novel paleogeographic model is here suggested: (1) around the Middle–Late Jurassic transition there is a major palaeoceanographic and palaeoclimatic reorganization, coincidental to a major eustatic sea-level drop and uplift associated with the Callovian– Oxfordian Atlantic Regressive Event; (2) creating an ephemeral land bridge presenting a temporary opportunity for terrestrial gateways likely across the Flemish Cap and Galician Bank land masses, allowing large dinosaurian taxa to cross the northern proto-Atlantic in both directions; (3) finally, a Callovian–Oxfordian faunal exchange around the 163 Ma, through latest Kimmeridgian at 152 Ma (the age of equivalent genera in both Morrison and Portugal), is was an interval that allowed speciation, but retaining generic similarity of vertebrates. This model is consistent with the chronology and taxonomy required for speciation of the Iberian and American forms, exemplified by the coeval sister-taxa pairs Torvosaurus tanneri and T. gurneyi, Allosaurus fragilis and A. europaeus, or Supersaurus vivianae and S. lourinhanensis. While some of the smaller animals in the fauna show Morrison/Portugal affinities, most from Iberia have European or even Asian affinities. The larger-bodied fauna are more closely related to Morrison than to mainland Europe (except for dacentrurine stegosaurs). The body size differences and affinities of taxa across paleogeography is comparable to what is observed today across the Wallace Line. Migration may have also occurred in both directions. The closest relative of Torvosaurus is likely the European Bathonian Megalosaurus, thus the presence of the genus in North America represents a European migration. On other hand, Allosaurus and Supersaurus origins are consistent with a North American origin, representing an westto-east migration.

Mateus, O. (2016).  Late Jurassic of Morrison Formation and Portugal tetrapods compared: a model to explain faunal exchange and similarity. Annual Meeting of the Society of Vertebrate Paleontology. 185., Salt Late City: Journal of Vertebrate Paleontology, Program and Abstracts, 2016 Abstract

The precursor of the North Atlantic existed between the North American and Iberian blocks from the earliest Jurassic Hettangian and has been ever expanding since. By the Kimmeridgian and Tithonian, when much of the Morrison Fm rocks were deposited, the proto-Atlantic was more than 300 km wide at 27° paleolatitude between North America and Iberia. Macrovertebrate paleontology reveals a unique story to the isolation of Iberia and instead suggest a paleogeographic land connection between North American and Iberia. Torvosaurus, Allosaurus, Ceratosaurus, Stegosaurus, Supersaurus and others have a distribution restricted to Morrison Formation in North America and Lourinhã Formation in Portugal. A novel paleogeographic model is here suggested: (1) around the Middle–Late Jurassic transition there is a major palaeoceanographic and palaeoclimatic reorganization, coincidental to a major eustatic sea-level drop and uplift associated with the Callovian– Oxfordian Atlantic Regressive Event; (2) creating an ephemeral land bridge presenting a temporary opportunity for terrestrial gateways likely across the Flemish Cap and Galician Bank land masses, allowing large dinosaurian taxa to cross the northern proto-Atlantic in both directions; (3) finally, a Callovian–Oxfordian faunal exchange around the 163 Ma, through latest Kimmeridgian at 152 Ma (the age of equivalent genera in both Morrison and Portugal), is was an interval that allowed speciation, but retaining generic similarity of vertebrates. This model is consistent with the chronology and taxonomy required for speciation of the Iberian and American forms, exemplified by the coeval sister-taxa pairs Torvosaurus tanneri and T. gurneyi, Allosaurus fragilis and A. europaeus, or Supersaurus vivianae and S. lourinhanensis. While some of the smaller animals in the fauna show Morrison/Portugal affinities, most from Iberia have European or even Asian affinities. The larger-bodied fauna are more closely related to Morrison than to mainland Europe (except for dacentrurine stegosaurs). The body size differences and affinities of taxa across paleogeography is comparable to what is observed today across the Wallace Line. Migration may have also occurred in both directions. The closest relative of Torvosaurus is likely the European Bathonian Megalosaurus, thus the presence of the genus in North America represents a European migration. On other hand, Allosaurus and Supersaurus origins are consistent with a North American origin, representing an westto-east migration.

Araújo, R., Castanhinha R., Mateus O., & Martins R. (2012).  Late Jurassic theropod embryos from Porto das Barcas, Lourinhã formation, Portugal. Journal of Vertebrate Paleontology, Program and Abstracts, 2012, ISSN 1937-2809 . 57. Abstractaraujo_et_al_mateus_2012_dinosaur_eggs_portugal_svp_2012_abstract_book_meeting_abstracts.pdf.pdf

A clutch of several crushed eggs and embryos from the Late Jurassic (near the Kimmeridgian-Tithonian
boundary), Lourinhã Formation, Portugal contains a complete maxilla, erupted and scattered teeth,
and presacral vertebrae. The maxilla bears four teeth separated by individualized interdental plates,
the dorsal process of the maxilla is confluent with the maxillary body, the ventral rim of the antorbital
fossa is parallel to the tooth row, and the anterior border of the maxilla forms a right angle with the
ventral margin. The teeth are conical and recurved distally with carinae on mesial and distal sides. The
vertebrae are amphiplatyan, with a ventral pair of neurovascular foramina and heavily pitted articular
facets. These fossils allow unambiguous association of basal theropod osteology (Megalosauroidea) with
a new eggshell morphotype. Synchrotron micro-computed tomographic scanning (SRμCT), scanning
electron microscopy, and thin-sections under polarized and normal light revealed that the outer
ornamentation of the eggshell is composed of anastomosing ridges and islets, the pores communicate
near the outer region of the eggshells, and in radial section they are irregular canals that ramify towards
the surface. Micro-proto induced x-ray emission (micro-PIXE) analysis of the eggshell (excluding pores)
revealed the presence of Mg, Fe, Mn (0.33%, 0.27% and 0.18%, respectively) and several trace elements,
with a corresponding loss of Ca (39.4% detected but 40.0% expected for calcite), which suggests minimal
eggshell diagenesis. The eggshells do not luminesce, which could imply that no diagenetic alteration
took effect. However, the quenching effect of Fe2+ has to be taken into consideration. Conversely,
luminescence is observed in the pores since they are filled with sediment, composed of phyllosilicates,
as revealed by SRμCT, micro-PIXE and x-ray diffraction analyses.

Polcyn, M. J., Jacobs L. L., Mateus O., Schulp A. S., Strganac C., Araújo R., Graf J. F., Vineyard D., & Myers T. S. (2013).  A marine vertebrate assemblage from the Campanian-Maastrichtian boundary at Bentiaba, Angola. Geological Society of America Abstracts with Programs. Vol. 45, No. 7, p.0. polcyn_et_al_2013_abstract__a_marine_vertebrate_assemblage_from_the_campanian-maastrichtian_boundary_at_bentiaba_angola_2013__gsa_27-30_october_2013.pdf
Guillaume, A. R. D., Moreno-Azanza M., & Mateus O. (2018).  Microvertebrates from the Lourinhã Formation (Late Jurassic, Portugal). 1st Palaeontological Virtual Congress. online. Abstractguillaume-et-al_pvc2018_abstract.pdf

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Puértolas‐Pascual, E., Serrano‐Martínez A., Kuzmin I. T., & Mateus O. (2022).  Neuroanatomy of the Cenomanian crocodylomorph Portugalosuchus. XIX Annual Conference of the European Association of Vertebrate Paleontologists. 170-171. Abstractpuertolas-pascoal_et_al_2022_portugalosuchus_eavp_2022_abstract_volume.pdf

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Puértolas-Pascual, E., & Mateus O. (2018).  A new 3D preserved articulated partial skeleton of Neosuchia from the Upper Jurassic of Portugal. XVI Annual Meeting of the European Association of Vertebrate Palaeontologists. 158., Caparica, Portugal June 26th-July 1st, 2018: Faculdade de Ciências e Tecnologia da Universidade Nova de Lisboa Abstractpuertolas-pascual__mateus_2018_eavp_abstract.pdf

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Russo, J., & Mateus O. (2019).  A new Ankylosaur Dinosaur Skeleton from the Upper Jurassic of Portugal. Journal of Vertebrate Paleontology, Program and Abstracts. 184.russo__mateus_2019_svp_abstract.pdf
Russo, J., & Mateus O. (2019).  A new Ankylosaur Dinosaur Skeleton from the Upper Jurassic of Portugal. Journal of Vertebrate Paleontology, Program and Abstracts. 184. Abstract
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Myers, T. S., Mateus O., Polcyn M. J., Vineyard D., & Jacobs L. L. (2016).  A new chelonioid turtle from the Paleocene of Cabinda, Angola. Annual Meeting of the Society of Vertebrate Paleontology. 194.: Journal of Vertebrate Paleontology, Program and Abstracts, 2016 Abstractmyers_etal_2016_chelonoid_angola_turtle_svp_abstract.pdf

We report a new chelonioid turtle on the basis of a nearly complete skull collected in lower Paleocene, shallow marine deposits, equivalent to the offshore Landana Formation, near the town of Landana in Cabinda Province, Angola. Chelonioid material previously reported from this locality is likely referable to this new taxon. The well-preserved skull is missing the left quadrate, squamosal, and prootic, both opisthotics, and the mandible. The skull possesses a rod-like basisphenoid rostrum, which is a synapomorphy of Chelonioidea, but it differs from other chelonioid skulls in that the contact between the parietal and squamosal is absent, and the posterior palatine foramen is present. Phylogenetic analysis recovers the new taxon as a basal chelonioid. The Paleocene– Eocene strata near Landana have produced a wealth of turtle fossils, including the holotype of the pleurodire Taphrosphys congolensis. A turtle humerus collected from the Landana locality differs morphologically from the humeri of chelonioids and Taphrosphys, indicating the presence of a third taxon. Chelonioid fossil material in the Landana assemblage is rare compared to the abundant fragmentary remains of Taphrosphys that are found throughout the stratigraphic section. This disparity in abundance suggests the new chelonioid taxon preferred open marine habitats, whereas Taphrosphys frequented nearshore environments.

Myers, T. S., Mateus O., Polcyn M. J., Vineyard D., & Jacobs L. L. (2016).  A new chelonioid turtle from the Paleocene of Cabinda, Angola. Journal of Vertebrate Paleontology, Program and Abstracts, 2016, p. 194.. 194. Abstract

We report a new chelonioid turtle on the basis of a nearly complete skull collected in lower Paleocene, shallow marine deposits, equivalent to the offshore Landana Formation, near the town of Landana in Cabinda Province, Angola. Chelonioid material previously reported from this locality is likely referable to this new taxon. The well-preserved skull is missing the left quadrate, squamosal, and prootic, both opisthotics, and the mandible. The skull possesses a rod-like basisphenoid rostrum, which is a synapomorphy of Chelonioidea, but it differs from other chelonioid skulls in that the contact between the parietal and squamosal is absent, and the posterior palatine foramen is present. Phylogenetic analysis recovers the new taxon as a basal chelonioid. The Paleocene– Eocene strata near Landana have produced a wealth of turtle fossils, including the holotype of the pleurodire Taphrosphys congolensis. A turtle humerus collected from the Landana locality differs morphologically from the humeri of chelonioids and Taphrosphys, indicating the presence of a third taxon. Chelonioid fossil material in the Landana assemblage is rare compared to the abundant fragmentary remains of Taphrosphys that are found throughout the stratigraphic section. This disparity in abundance suggests the new chelonioid taxon preferred open marine habitats, whereas Taphrosphys frequented nearshore environments.

Graf, J., Jacobs L. L., Polcyn M. J., Mateus O., & Schulp A. S. (2011).  New fossil whales from Angola. 71st Annual Meeting of the Society of Vertebrate Paleontology. 119., Jan: Abstracts of the 71st Annual Meeting of the Society of Vertebrate Paleontologygraf_et_al_mateus_2011_fossil_whales_from_angola_svp11abstracts.pdf
Fernandes, A. F., Beccari V., Kellner A. W. A., & Mateus O. (2022).  A new Gnathosaurine (Archaeopterodactyloidea, Pterosauria) from the Late Jurassic of Portugal. XIX Annual Conference of the European Association of Vertebrate Palaeontologists. 56-57. Abstractfernandes_et_al_2022_pterosaur_eavp_2022_abstract_volume.pdf

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López-Rojas, V., Puértolas-Pascual E., Marinheiro J., Mateus O., & Mateus S. (2022).  A new goniopholidid skull from the Late Jurassic of Lourinhã, Portugal. XXVII Jornadas SEP e V Congreso Ibérico de Paleontologia. 101., Cuencalopez-rojas_et_al_2022_goniopholis_jornadas_sep_cuenca_abstract_2022.pdf
Martino, R., Ríos M., Mateus O., Rook L., & Pandolf L. (2022).  New insights into the hippopotamid (Mammalia, Hippopotamidae) from the Casino Basin (Tuscany, Italy). XIX Annual conference of the European Association of Vertebrate Palaeontologists (19th EAVP)At: Benevento, Italy. 119. Abstract
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Guillaume, A. R., Moreno-Azanza M., & Mateus O. (2019).  New lissamphibian material from the Lourinhã Formation (Late Jurassic, Portugal). Journal of Vertebrate Paleontology, Program and Abstracts. 112.guillaume_et_al_2019_svp_abstract.pdf
Guillaume, A. R., Moreno-Azanza M., & Mateus O. (2019).  New lissamphibian material from the Lourinhã Formation (Late Jurassic, Portugal). Journal of Vertebrate Paleontology, Program and Abstracts. 112. Abstract
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Guillaume, A. R. D., Natário C., Moreno-Azanza M., & Mateus O. (2021).  New material ascribed to Albanerpetontidae (Lissamphibia; Allocaudata) from the Lourinhã Formation: evidence for intraspecific variation. XIX Encontro de Jovens Investigadores em Paleontologia. 50-51. Abstractguillaume_et_al_2021_albanerpetontidae.pdf

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Steyer, J. S., Mateus O., Butler R. J., Brusatte S. L., & Whiteside J. H. (2011).  A new metoposaurid (temnospondyl) bonebed from the Late Triassic of Portugal. 71st Annual Meeting of the Society of Vertebrate Paleontology. 200., Jan: Abstracts of the 71st Annual Meeting of the Society of Vertebrate Paleontology Abstractsteyer_mateus_et_al_2011_._a_new_metoposaurid_temnospondyl_bonebed_from_the_late_triassic_of_portugal_svp11abstracts.pdf

The end-Triassic extinction event (ETE), considered one of the ‘Big Five’ mass extinctions, marks a dividing line between early Mesozoic vertebrate assemblages, typically including abundant temnospondyls, basal synapsids and basal archosaurs, and ‘typical’ Mesozoic faunas dominated by dinosaurs, pterosaurs, crocodylomorphs, turtles and mammaliaforms.
Recent geochemical work has provided strong evidence that the ETE is synchronous with, and likely caused by, the emplacement of the Central Atlantic magmatic province (CAMP).
However, stratigraphic sections containing both terrestrial vertebrates and CAMP basalts are scarce, complicating attempts to examine terrestrial faunal changes during this extinction event. The Triassic–Jurassic Algarve Basin, southern Portugal, is an extensional rift basin

to-marginal marine red beds (the ‘Grés de Silves’ Group) interbedded with CAMP basalts.

bonebed from the interval ‘AB1’ of the Grés de Silves. Preliminary excavations yielded at least nine well-preserved temnospondyl individuals represented by partial to nearly complete skulls and disarticulated postcranial elements of juvenile to adult ages. Nearly all material appears to represent a single species of metoposaurid referable to the genus Metoposaurus, well known from the late Carnian–early Norian of Germany and Poland. A number of characters of the occiput and mandible suggest that the Algarve material may represent a new species. This new material provides new data on the diversity and paleogeographical distribution of the metoposaurids, a highly autapomorphic and peculiar group composed of large aquatic carnivores with a unique elongated but brevirostral skull. This taxon also provides

Horizon may be within or close to the late Carnian–early Norian. Additional bone-bearing horizons within the ‘Grés de Silves’ provide a rare opportunity to examine terrestrial faunal change in the lead-up to the ETE.

Guillaume, A. R. D., Natário C., Moreno-Azanza M., & Mateus O. (2021).  New occurences of Celtedens (Lissamphibia: Albanerpetontidae) from the Lourinhã Formation. XVIII Conference of the European Association of Vertebrate Palaeontologists. 87. Abstractguillaume_et_al_2021_celtedens.pdf

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Rotatori, F., Moreno-Azanza M., & Mateus O. (2019).  New ornithopod dinosaur remains from the Late Jurassic Lourinhã Formation. 17th Conference of the EAVP. 100., Bruxelles: European Association of Vertebrate Paleontologistsrotatori_et_al_2019_ornithopod_portugal_eavp_2019_abstract.pdf
López-Rojas, V., Mateus O., Milàn J., Wings O., Klein N., & Clemmensen L. B. (2021).  A new phytosaur from the Late Triassic of Jameson Land, Greenland. 3rd Palaeontological Virtual Congress. 207.: ISBN 978-84-09-36657-6 Abstractlopez_rojas_2021_pvc3_greenland.pdf

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Guillaume, A. R. D., Moreno-Azanza M., & Mateus O. (2022).  New species of Albanerpetontidae (Lissamphibia) from the Lourinhã Formation. XXXVII Jornadas SEP y V Congreso Ibérico de Paleontología. 94., Cuenca: ISBN 13: 978-84-09-44478-6 Abstractguillaume_et_al_2022_albanerpetontidae_jornadas_sep_cuenca_abstract_2022.pdf

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Ferrari, L., Rotatori F. M., Camilo B., Moreno-Azanza M., & Mateus O. (2022).  New specimen of dryomorphan (Ornithischia, Iguanodontia) remains from the Upper Jurassic of Portugal. Abstract book of the XIX Annual Conference of the European Association of Vertebrate Palaeontologists, Benevento/Pietraroja, Italy, 27th June-2nd July 2022.. 61-62.: PalaeoVertebrata, Special Volume 1- 2022, 224. Doi: 10.18563/pv.eavp Abstractferrarietal_2022.pdf

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Marinheiro, J., & Mateus O. (2011).  Occurrence of the marine turtle Thalassemys in the Kimmeridgian of Oker, Germany. 71st Annual Meeting of the Society of Vertebrate Paleontology. 151., Jan: Abstracts of the 71st Annual Meeting of the Society of Vertebrate Paleontology Abstractmarinheiro__mateus_2011_turtle_thalassemys_oker_germany_svp11abstracts.pdf

A partial chelonian was collected from the Langenberg Formation quarry of Oker (near Goslar, Lower Saxony, Germany). The amniotes from this formation include other chelonians (possible Plesiochelyidae), the sauropod Europasaurus holgeri, theropods (Velociraptorinae), crocodylomorphs (Atoposauridae, Theriosuchus pusillus, Goniopholis simus, Machimosaurus hugii, Steneosaurus brevirostris) and pterosaurs (Dsungapteridae, ?Ornithocheiroidea, ?Ctenochasmatidae).

The reported specimen, DFMMh/FV 296, includes a skull part (articulated quadrate, squamosal, basisphenoid, and pterygoid), a disarticulated 40 cm long partial carapace, plastron, and one cervical vertebra.

The carapace bears fontanelles, trapezoidal suprapygal with straight edges, small last neurals

[....]
a plicated longitudinal pattern in the proximal end of the costals originating on the posterior side of the scute sulci and dissipating posteriorly, wide central opening in the plastron, xiphiplastra with little or no contact between each other, and both the hyo- and hypoplastron have digit-form buttress projections.

The specimen has a central plastra fontanelle, which is regarded as a feature of the clade including [....], Santanachelys, and Thalassemys. DFMMh/FV 296 differs from
[....]

edges and xiphiplastron participation in the central fontanelle is autapomorphic for the Thalassemys genus. A large central fontanelle with hyo and hypoplastron polygonal medial
[....]
contact between xiphiplastra and reduced size of the two last neural plates is shared between T. hugii and the Oker specimen. DFMMh/FV 296 differs from this species due to the presence of plastral projections. The different shape of the plastron (no polygonal-like margins or hyo- and hypoplastron projections) suggests that T. moseri [....]
ent genus. Therefore, we can assign this specimen to Thalassemys sp.

Mateus, O., Callapez P. M., & Puértolas-Pascual E. (2017).  The oldest Crocodylia? a new eusuchian from the Late Cretaceous (Cenomanian) of Portugal. Journal of Vertebrate Paleontology, Program and Abstracts. 2017, 160. Abstractmateus_et_al_2017_oldest_crocodylia_svp_2017_abstract.pdf

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Correia, T., Barcelos L., Nunes T., Riff D., & Mateus O. (2017).  On a titanosaur scapula from the Marília Formation (Upper Cretaceous, Bauru Group) in Campina Verde Town. XXV Congresso Brasileiro de Paleontologia Boletim de Resumos. 77. Abstractthiago_abstract_brazil_2017.pdf

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Mateus, O., Carrano M. T., & Taquet P. (2012).  Osteology of the embryonic theropods from the Late Jurassic of Paimogo, Portugal. Journal of Vertebrate Paleontology, Program and Abstracts, 2012, p.137. ISSN 1937-2809. 137.mateus_et_al_2012_embryos_paimogo_portugal_svp_2012_abstract_book_meeting_abstracts.pdf.pdf
Mateus, O. (2021).  Overview of vertebrate fossils from Portugal, focus on Mesozoic dinosaurs. 3rd Palaeontological Virtual Congress. 15.: ISBN 978-84-09-36657-6 Abstractmateus_2021_pvc3_key_note_speaker.pdf

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Estraviz Lopez, D., & Mateus O. (2018).  Paleobiodiversity of Quaternary fossil tetrapods in continental Portugal. 1st Palaeontological Virtual Congress. online. Abstractestraviz-lopez-mateus_palaeovc2018_abstract.pdf

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Puértolas-Pascual, E., Serrano-Martínez A., Kuzmin I. T., & Mateus O. (2022).  Paleoneuroanatomía de Portugalosuchus, un cocodrilomorfo eusuquio del Cenomaniense de Portugal. XXXVII Jornadas SEP y V Congreso Ibérico de Paleontología. 153., Cuenca: ISBN 13: 978-84-09-44478-6 Abstractpuertolas-pascula_et_al_2022_portugalosuchus_jornadas_sep_cuenca_abstract_2022.pdf

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Jacobs, L., Polcyn M., Araújo R., Strganac C., & Mateus O. (2010).  Physical drivers of evolution and the history of the marine tetrapod fauna of Angola. Annual Meeting of the Society of Vertebrate Paleontology. 110A., Jan Abstractjacobs_et_al_mateus_2010_physical_drivers_marine_tetrapod_fauna_of_angola_svp10abstracts.pdf

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Milàn, J., Mateus O., Marzola M., & Clemmensen L. B. (2016).  Plesiosaur remains from the Lower Jurassic part of the Kap Steward Formation, Jameson Land, East Greenland – evidence of the earliest marine incursion. 60th Annual Meeting Palaeontological Association. 91-92., Lyon, France: Palaeontological Associationmilan_et_al_2016__-_kap_stewart_fm_plesiosaur_-_palass_2016.pdf
Milàn, J., Mateus O., Marzola M., & Clemmensen L. B. (2016).  Plesiosaur remains from the Lower Jurassic part of the Kap Steward Formation, Jameson Land, East Greenland – evidence of the earliest marine incursion. 60th Annual Meeting Palaeontological Association. 91-92., Lyon, France: Palaeontological Association Abstract
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Araújo, R., Polcyn M., Jacobs L. L., Mateus O., & Schulp A. S. (2011).  Plesiosaur structural extreme from the Maastrichtian of Angola. 71st Annual Meeting of the Society of Vertebrate Paleontology. 63., Jan: Abstracts of the 71st Annual Meeting of the Society of Vertebrate Paleontology Abstractaraujo_et_al_mateus_2011_plesiosaur_extreme_angola_svp11abstracts.pdf

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Salminen, J., Dinis J., & Mateus O. (2013).  Preliminary magnetostratigraphy for Jurassic/Cretaceous transition in Porto da Calada, Portugal. In: Veikkolainen, T., Suhonen, K., Näränen, J., Kauristie, K., and Kaasalainen, S. (eds.). XXVI Geofysiikan päivät,. 119-122., May 21-22 2013 in Helsinkisalminen.johanna_gfp2013_portugal_preliminary_magnetostratigraphy_for_jurassic_cretaceous_transition_in.pdf
Campos, H., Mateus O., & Moreno-Azanza M. (2017).  Preliminary results on the stratigraphy and taphonomy of multiple bonebeds in the Triassic of Algarve. Abstract book of the XV Encuentro de Jóvenes Investigadores en Paleontología/XV Encontro de Jovens Investigadores em Paleontologia, Lisboa, 428 pp.. 83-87. Abstractcampos_et_al._2017_preliminary_results_pn_the_stratigraphy_and_taphonomy_of_multiple_beds_in_the_triassic_of_algarve..pdf

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Rotatori, F. M., Moreno-Azanza M., & Mateus O. (2021).  Re-evaluation of the Holotype of Draconyx loureiroi (Dinosauria, Ornithopoda) with report of new holotype material. PALEODAYS 2021 – XXI Convegno della Società Paleontologica Italiana. 73. Abstractrotatoriet_l_2021_paleodays.pdf

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Costa, F., Silva T., Fernandes J., Calvo R., & Mateus O. (2017).  Retracing the history of a stegosaurian dinosaur discovery in Portugal and the importance of record-keeping in Palaentology. Abstract book of the XV Encuentro de Jóvenes Investigadores en Paleontología/XV Encontro de Jovens Investigadores em Paleontologia, Lisboa, 428 pp.. 119-124. Abstractcosta_et_al_2017_retracing_the_history_-_2017.pdf

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Sousa, J., & Mateus O. (2018).  A review of Ichthyosauria from Portugal. XVI Annual Meeting of the European Association of Vertebrate Palaeontologists. 179., Caparica, Portugal June 26th-July 1st, 2018 Abstractsousa_e_mateus_2018_eavp_abstract.pdf

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Rotatori, F. M., Chiarenza A. A., Moreno-Azanza M., & Mateus O. (2023).  Rise of a dinasty: macroevolutionary and biogeographic patterns of iguanodontian dinosaurs across the Jurassic–Cretaceous transition. EAVP Annual Conference of the European Association of Vertebrate Palaeontologists. 226.: Palaeovertebrata, Special Volume 1-23. DOI: 10.18563/pv.eavp2023 Abstract
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Holwerda, F., Tschopp E., & Mateus O. (2014).  Sauropod body fossils in Europe: overview and current issues. XII EAVP Meeting XII Annual Meeting of the European Association of Vertebrate Palaeontologists – Abstract Book. p.77., Torino 24-28 June 2014holwerda_et_al_2014_sauropods_europe_eavp.pdf