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Mateus, O., Callapez P. M., Polcyn M. J., Schulp A. S., Gonçalves A. O., & Jacobs L. L. (2019).  The Fossil Record of Biodiversity in Angola Through Time: A Paleontological Perspective. (Huntley, Brian J., Russo, Vladimir, Lages, Fernanda, Ferrand, Nuno, Ed.).Biodiversity of Angola: Science {&} Conservation: A Modern Synthesis. 53–76., Cham: Springer International Publishing Abstract

This chapter provides an overview of the alpha paleobiodiversity of Angola based on the available fossil record that is limited to the sedimentary rocks, ranging in age from Precambrian to the present. The geological period with the highest paleobiodiversity in the Angolan fossil record is the Cretaceous, with more than 80{%} of the total known fossil taxa, especially marine molluscs, including ammonites as a majority among them. The vertebrates represent about 15{%} of the known fauna and about one tenth of them are species firstly described based on specimens from Angola.

Ribeiro, C., Callapez P. M., & Mateus O. (2018).  Fossil vertebrates in the paleontological collections of the Science Museum (University of Coimbra, Portugal). XVI Annual Meeting of the European Association of Vertebrate Palaeontologists. 163., Caparica, Portugal June 26th-July 1st, 2018: Faculdade de Ciências e Tecnologia da Universidade Nova de Lisboa Abstractribeiro_et_al_2018_eavp_abstract.pdf

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Hayashi, S., Redelstorff R., Mateus O., Watabe M., & Carpenter K. (2014).  Gigantism of stegosaurian osteoderms. Journal of Vertebrate Paleontology. Program and Abstracts, 2014, 145.hayashi_et_al_2014_gigantism_of_stegosaurian_osteoderms.pdf
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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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Puértolas-Pascual, E., Mateus O., & Callapez P. M. (2018).  Implicaciones de la fenestra mandibular externa en el origen de Crocodylia. EJIP Life finds a way. 14-144., Gasteiz, Spainpuertolas-pascual_et_al_2018_ejip.pdf
Brandao, J., Callapez, P., O. Mateus, Castro, P (Eds.). (2009).  International Conference on the Geological Collections and Museums: mission and management. Abstract
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Beccari, V., Mateus O., Wings O., Milàn J., & Clemmensen L. B. (2021).  Issi saaneq gen. et sp. nov.—A New Sauropodomorph Dinosaur from the Late Triassic (Norian) of Jameson Land, Central East Greenland. Diversity. 13, , Number 11 Abstractdiversity-13-00561-v2.pdfWebsite

The Late Triassic (Norian) outcrops of the Malmros Klint Formation, Jameson Land (Greenland) have yielded numerous specimens of non-sauropod sauropodomorphs. Relevant fossils were briefly reported in 1994 and were assigned to Plateosaurus trossingensis. However, continuous new findings of early non-sauropod sauropodomorphs around the globe facilitate comparisons and allow us to now revise this material. Here, the non-sauropod sauropodomorph Issi saaneq gen. et sp. nov. is described based on two almost complete and articulated skulls. The two skulls represent a middle-stage juvenile and a late-stage juvenile or subadult. Issi saaneq differs from all other sauropodomorphs by several unique traits: (1) a small foramen at the medial surface of the premaxilla; (2) an anteroposteriorly elongated dorsoposterior process of the squamosal; (3) a relatively high quadrate relative to rostrum height; (4) a well-developed posterodorsal process of the articular. These features cannot be explained by taphonomy, ontogeny, or intraspecific variation. Issi saaneq shows affinities to Brazilian plateosaurids and the European Plateosaurus, being recovered as the sister clade of the latter in our phylogenetic analysis. It is the northernmost record of a Late Triassic sauropodomorph, and a new dinosaur species erected for Greenland. Issi saaneq broadens our knowledge about the evolution of plateosaurid sauropodomorphs.

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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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Belvedere, M., Castanera D., Meyer C. A., Marty D., Mateus O., Silva B. C., Santos V. F., & Cobos A. (2019).  Late Jurassic globetrotters compared: A closer look at large and giant theropod tracks of North Africa and Europe. Journal of African Earth Sciences. 158, 103547. Abstractbelvedere_et_al_2019_jurassic_globetrotters_compared.pdfWebsite

Late Jurassic theropod tracks are very common both in North Africa and Europe. Two recently described ichnotaxa Megalosauripus transjuranicus and Jurabrontes curtedulensis from the Kimmeridgian of Switzerland show the coexistence of two apex predators in the same palaeoenvironment. Similar tracks can be found in tracksites from the Iberian Peninsula and from Morocco. Here, we further explore the similarities among the Swiss ichnotaxa and the other tracks from Germany (Kimmeridgian), Spain (Tithonian-Berriasian), Portugal (Oxfordian-Tithonian) and Morocco (Kimmeridgian) through novel three-dimensional data comparisons. Specimens were grouped in two morphotypes: 1) large and gracile (30 < Foot Length<50 cm) and 2) giant and robust (FL > 50 cm). The analyses show a great morphological overlap among these two morphotypes and the Swiss ichnotaxa (Megalosauripus transjuranicus and Jurabrontes curtedulensis, respectively), even despite the differences in sedimentary environment and age. This suggests a widespread occurrence of similar ichnotaxa along the western margin of Tethys during the Late Jurassic. The new data support the hypothesis of a Gondwana-Laurasia faunal exchange during the Middle or early Late Jurassic, and the presence of migratory routes around the Tethys.

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.

Mateus, O., Clemmensen L., Klein N., Wings O., Frobøse N., Milàn J., Adolfssen J., & Estrup E. (2014).  The Late Triassic of Jameson Land revisited: new vertebrate findings and the first phytosaur from Greenland. Journal of Vertebrate Paleontology. Program and Abstracts, 2014, 182.mateus_et_al2014-_jameson_land_revisited_-_svp_2014.pdf
Mateus, O., & Campos H. (2018).  Loulé há mais de 220 Milhões de anos: os vertebrados fósseis do Algarve triásico. Loulé: Territórios. Memórias. Identidades. 651-659.: Museu Nacional de Arqueologia | Imprensa Nacionalmateus_campos2018_algarve_triasico.pdf
Mateus, O., and Dinis J., Cunha P. P., & and (2017).  The Lourinhã Formation: the Upper Jurassic to lower most Cretaceous of the Lusitanian Basin, Portugal – landscapes where dinosaurs walked. Ciências da Terra - Earth Sciences Journal. 19, 75–97., sep, Number 1: {NOVA}.{ID}.{FCT} AbstractWebsite
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Araujo, R., Castanhinha R., & Mateus O. (2008).  Major trends in the evolution of teeth and mandibles in ornithopod dinosaurs. Livro de Resumos de Tercer Congreso Latinoamericano de Paleontología de Vertebrados. 18., Neuquén, Argentina Abstractaraujo_et_al._2008._major_trends_in_the_evolution_of_teeth_and_mandibles_in_ornithopod_dinosaurs.pdf

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Araujo, R., Castanhinha R., & Mateus O. (2008).  Major trends in the evolution of teeth and mandibles in ornithopod dinosaurs. Livro de Resumos de Tercer Congreso Latinoamericano de Paleontología de Vertebrados. 18., Neuquén, Argentina Abstract
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Araujo, R., Castanhinha R., & Mateus O. (2008).  Major trends in the evolution of teeth and mandibles in ornithopod dinosaurs. Livro de Resumos de Tercer Congreso Latinoamericano de Paleontología de Vertebrados. 18–18., Neuquén, Argentina Abstract
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Conti, S., Mateus O., & Sala G. (2021).  Mechanical characterization of tibial bone material of an ostrich. Rossi V., Fanti F., Barbieri G., Cavalazzi B. & Scarponi D. (Editors) 2021. Paleodays 2021. Abstract Book del XXI Convegno della Società Paleontologica Italiana, live virtual edition: 127 pp.. , 15-17 June, Bologna (Italy): University of Bolognaconti_et_al_2021_ostrich_bone.pdf
Mateus, O. (1999).  Monofilia dos dinossauros e Origem das Aves: Serão as aves dinossauros?. (P, P Catry, F Moreira, Ed.).Actas do II Congresso de Ornitologia. 184-185., Lisboa: SPEA- Sociedade Portuguesa para o Estudo das Aves Abstract
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Mateus, O. (1999).  Monofilia dos dinossauros e Origem das Aves: Serão as aves dinossauros?. (Spea- Sociedade Portuguesa para o Estudo das Aves, P, P Catry, F Moreira, Ed.).Actas do II Congresso de Ornitologia. 184-185., Lisboa Abstract
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Conti, S., Tschopp E., Sala G., & Mateus O. (2021).  Multibody simulations of diplodocid tail motion. Annual conference of the European Association of Vertebrate Palaeontologists. , 5th-9th July : European Association of Vertebrate Palaeontologistsconti_et_al_2021_diplodocid_tail._eavp_abstract.pdf
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Mateus, O., Puértolas-Pascual E., & Callapez P. M. (2018).  A new eusuchian crocodylomorph from the Cenomanian (Late Cretaceous) of Portugal reveals novel implications on the origin of Crocodylia. Zoological Journal of the Linnean Society. , dec: Oxford University Press ({OUP}) AbstractWebsite
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Mateus, O., Maidment S., & Christiansen N. (2009).  A new long-necked 'sauropod-mimic' stegosaur and the evolution of the plated dinosaurs. Proceedings of the Royal Society of London B. 276, 1815-1821., Jan Abstractmateus_et_al_2009_stegosaur_miragaia_complete_with_suppl.pdfWebsite

Stegosaurian dinosaurs have a quadrupedal stance, short forelimbs, short necks, and are generally considered to be low browsers. A new stegosaur, Miragaia longicollum gen. et sp. nov., from the Late Jurassic of Portugal, has a neck comprising at least 17 cervical vertebrae. This is eight additional cervical vertebrae when compared with the ancestral condition seen in basal ornithischians such as Scutellosaurus.
Miragaia has a higher cervical count than most of the iconically long-necked sauropod dinosaurs. Long neck length has been achieved by ‘cervicalization’ of anterior dorsal vertebrae and probable lengthening of centra. All these anatomical features are evolutionarily convergent with those exhibited in the necks of
sauropod dinosaurs. Miragaia longicollum is based upon a partial articulated skeleton, and includes the only known cranial remains from any European stegosaur. A well-resolved phylogeny supports a new clade that unites Miragaia and Dacentrurus as the sister group to Stegosaurus; this new topology challenges the common view of Dacentrurus as a basal stegosaur.

Mateus, O., Maidment S. C. R., & Christiansen N. A. (2009).  A new long-necked {'}sauropod-mimic{'} stegosaur and the evolution of the plated dinosaurs. Proceedings of the Royal Society B: Biological Sciences. 276, 1815-1821., Number 1663 Abstract
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Mateus, O., Maidment S. C. R., & Christiansen N. A. (2008).  A new specimen aff. Dacentrurus armatus (Dinosauria: Stegosauridae) from the Late Jurassic of Portugal. Livro de Resumos de Tercer Congreso Latinoamericano de Paleontologia de Vertebrados. 157., Neuquén, Argentina Abstractmateus_et_al_2008_a_new_specimen_aff._dacentrurus_armatus_dinosauria_stegosauridae_from_the_late_jurassic_of_portugal.pdf

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Mateus, O., Maidment S. C. R., & Christiansen N. A. (2008).  A new specimen aff. Dacentrurus armatus (Dinosauria: Stegosauridae) from the Late Jurassic of Portugal. Livro de Resumos de Tercer Congreso Latinoamericano de Paleontología de Vertebrados. 157., Neuquén, Argentina Abstract
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Mateus, O., Maidment S. C. R., & Christiansen N. A. (2008).  A new specimen aff. Dacentrurus armatus (Dinosauria: Stegosauridae) from the Late Jurassic of Portugal. Livro de Resumos de Tercer Congreso Latinoamericano de Paleontología de Vertebrados. 157–157., Neuquén, Argentina Abstract
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Mateus, O., Natário C., Araújo R., & Castanhinha R. (2008).  A new specimen of spinosaurid dinosaur aff. Baryonyx from the Early Cretaceous of Portugal. Livro de Resumos do X Congresso Luso-Espanhol de Herpetologia. 51., Jan Abstract

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Mateus, O., Natario C., Araujo R., & Castanhinha R. (2008).  A new specimen of spinosaurid dinosaur aff. Baryonyx from the Early Cretaceous of Portugal. (Universidade de, Coimbra, Ed.).Livro de Resumos do X Congresso Luso-Espanhol de Herpetologia. 51., Coimbra Abstract
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Mateus, O., Natario C., Araujo R., & Castanhinha R. (2008).  A new specimen of spinosaurid dinosaur aff. Baryonyx from the Early Cretaceous of Portugal. Livro de Resumos do X Congresso Luso-Espanhol de Herpetologia. 51–51., Coimbra Abstract
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Mateus, O., Araújo R., Natário C., & Castanhinha R. (2011).  A new specimen of the theropod dinosaur Baryonyx from the early Cretaceous of Portugal and taxonomic validity of Suchosaurus. Zootaxa. 2827, 54–68., Jan Abstractmateus_et_al_2011_a_new_specimen_of_the_theropod_dinosaur_baryonyx_from_the_early_cretaceous_of_portugal_and_taxonomic_validity_of_suchosaurus.pdf

Although the Late Jurassic of Portugal has provided abundant dinosaur fossils, material from the Early Cretaceous is scarce. This paper reports new cranial and postcranial material of the theropod dinosaur Baryonyx walkeri found in the Barremian (Papo Seco Formation) of Portugal. This specimen, found at Praia das Aguncheiras, Cabo Espichel, consists of a partial dentary, isolated teeth, pedal ungual, two calcanea, presacral and caudal vertebrae, fragmentary pubis, scapula, and rib fragments. It represents the most complete spinosaurid yet discovered in the Iberian Peninsula and the most complete dinosaur from the Early Cretaceous of Portugal. This specimen is confidently identified as a member of Baryonychinae due to the presence of conical teeth with flutes and denticles in a dentary rosette. The specimen ML1190 shares the following characteristics with Baryonyx walkeri: enamel surface with small (nearly vertical) wrinkles, variable denticle size along the carinae, 6–7 denticles per mm, wrinkles forming a 45 degree angle near the carinae, and tooth root longer than crown. In addition, dubious taxa based on teeth morphology such as Suchosaurus cultridens (Owen, 1840–1845), and Suchosaurus girardi (Sauvage 1897–98; Antunes & Mateus 2003) are discussed, based on comparisons with well-known material such as Baryonyx walkeri Charig & Milner, 1986. Suchosaurus cultridens and S. girardi are considered as nomina dubia due to the lack of diagnostic apomorphies, but both specimens are referred to Baryonychinae incertae sedis.

Mateus, O., Araújo R., Natário C., & Castanhinha R. (2011).  A new specimen of the theropod dinosaur Baryonyx from the early Cretaceous of Portugal and taxonomic validity of Suchosaurus. Zootaxa. 54-68., Number 2827 Abstract
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Clemmensen, L. B., Lindström S., Mateus O., Mau M., Milàn J., & Kent D. V. (2021).  A new vertebrate fossil-bearing layer in the Rhætelv Formation (Kap Stewart Group) of central East Greenland: evidence of a Hettangian marine incursion into the continental Jameson Land Basin. Lethaia. n/a, , Number n/a Abstractlet.12449.pdfWebsite

The Kap Stewart Group (Rhaetian-Sinemurian, Triassic–Early Jurassic) of the Jameson Land Basin in central East Greenland has traditionally been regarded as a strictly continental unit with delta and perennial lake sediments. New finds of plesiosaur bone remain in a thin storm deposited sandstone bed in the middle part of the Rhætelv Formation of the Kap Stewart Group, however, indicates a likely period of marine influence. At the study area at the eastern margin of the basin, the Rhætelv Formation is 300-m thick and overlies unconformably the Norian Fleming Fjord Group. The bone-bearing sandstone occurs 190 m above the base of the group and is closely associated with black laminated mudstones; palynological investigation of three samples from these mudstones indicates that they are of a younger Hettangian age. The Hettangian was a relatively short stage (201.3–199.5 Ma) and elsewhere characterized by two episodes of sea-level highstands. Assuming that the marine incursion in the Jameson land Basin evidenced by the plesiosaur fossil remains took place during the youngest of these sea-level highstands, the bone-bearing bed of the Rhætelv Formation can be dated to 200 Ma and thereby gives the first numerical age constraint of this hitherto poorly dated succession.

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Mateus, O., Callapez P. M., Polcyn M. J., Schulp A. S., Gonçalves A. O., & Jacobs L. L. (2019).  O registo fóssil da biodiversidade em Angola ao longo do tempo: uma perspectiva paleontológica. (Huntley B.J., Russo V., Lages F., Ferrand N., Ed.).Biodiversidade de Angola: Ciência e Conservação - Uma Síntese Moderna. 89-116., Porto: Arte & Ciência Abstractmateus_et_al_2019_paleobiodiversidade_angola.pdf

Este capítulo apresenta uma visão geral da paleobiodiversidade alfa de Angola com base no registo fóssil disponível, o qual se limita às rochas sedimentares, a sua idade variando entre o Pré‑Câmbrico e o pre‑
sente. O período geológico com a maior paleobiodiversidade no registo fóssil angolano é o Cretácico, com mais de 80% do total dos táxones fósseis conhecidos, especialmente moluscos marinhos, sendo estes na sua maioria
amonites. Os vertebrados representam cerca de 15% da fauna conhecida e cerca de um décimo destes são espécies descritas pela primeira vez com base em espécimes de Angola.

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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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. Abstract
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Mateus, O., Callapez {P. M. }, & Puértolas-Pascual E. (2017).  The oldest Crocodylia? a new eusuchian from the Late Cretaceous (Cenomanian) of Portugal. 160. Abstract
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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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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. 77. Abstract
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Correia, T., Barcelos L., Nunes T., Riff D., & Mateus O. (2017).  On a titanosaur scapula from the Mar{\'ılia Formation (Upper Cretaceous, Bauru Group) in Campina Verde Town. XXV Congresso Brasileiro de Paleontologia Boletim de Resumos. 77. Abstract
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Castanhinha, R., & Mateus O. (2006).  On the left-right asymmetry in dinosaurs. Journal of Vertebrate Paleontology. 26(Suppl. To 3), 48A. Abstractcastanhinhamateus2006.pdf

The study of different kinds of morphological left-right (L-R) asymmetries in all taxa is a very powerful tool to understand evolution since it is a way to measure the developmentalstability of an organism against environmental perturbations. Excluding every pathologic or subtle asymmetry and all cases of taphonomic distortion, this work focuses only on two
kinds of unambiguous asymmetries: fluctuating and adaptative asymmetry. There are several cases of conspicuous left-right asymmetry in dinosaurs and is probably more common than previously thought. The pneumatic cavities systems in skull and vertebrae of theropodsand sauropods are the most common cases reported. The shape (but not the occurrence) of pneumatic cavities might have been exposed to weak selective pressure becoming more random than other body structures. Asymmetries are rarer in the appendicular bones possibly because it represents a strong handicap in the function of the limbs, consequently in the locomotion of the individual. Teeth counting show many exceptions to the typical L-R symmetry. Peculiar cases of adaptive asymmetry are related with the plates of stegosaurs and the ear displacement in the skull of the troodontids, which may have an important role in the physiology and ecology of the animals. The asymmetric displacement maximizes the surface exposure of the stegosaurs dorsal plates. This is an advantage, either the plates were used for thermoregulation, display or specific identification. Work in progress on the braincases of some troodontids specimens shows asymmetric ear openings, which suggests thatcan be an analogy resulting from convergent evolution between troodontids and strigiformes birds, used for 3D directional acoustics. Asymmetries are more common in animals that develop under stress. Animals that lived under dramatic environmental changes periods—like mass-extinctions episodes are believed to be—should present more asymmetries.
However, much more sampling and time accuracy is required in order to be able to relate dinosaur asymmetries to extinction episodes. Asymmetries show strong intra-individual variation and should be taken in consideration in taxonomical studies.

Castanhinha, R., & Mateus O. (2006).  On the left-right asymmetry in dinosaurs. Journal of Vertebrate Paleontology, 26 (Suppl. To 3): 48A.. 26, 48., Number Suppl. to 3 Abstract
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Castanhinha, R., & Mateus O. (2006).  On the left-right asymmetry in dinosaurs. Journal of Vertebrate Paleontology, 26 (Suppl. To 3): 48A.. 26, 48–48., Number Suppl. to Abstract
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Beccari, V., Pinheiro F. L., Nunes I., Anelli L. E., Mateus O., & Costa F. R. (2021).  Osteology of an exceptionally well-preserved tapejarid skeleton from Brazil: Revealing the anatomy of a curious pterodactyloid clade. PLOS ONE. 16(8), e0254789 - ., 2021/08/25: Public Library of Science Abstractbeccari_et_al_2021.pdfWebsite

A remarkably well-preserved, almost complete and articulated new specimen (GP/2E 9266) of Tupandactylus navigans is here described for the Early Cretaceous Crato Formation of Brazil. The new specimen comprises an almost complete skeleton, preserving both the skull and post-cranium, associated with remarkable preservation of soft tissues, which makes it the most complete tapejarid known thus far. CT-Scanning was performed to allow the assessment of bones still covered by sediment. The specimen can be assigned to Tupa. navigans due to its vertical supra-premaxillary bony process and short and rounded parietal crest. It also bears the largest dentary crest among tapejarine pterosaurs and a notarium, which is absent in other representatives of the clade. The new specimen is here regarded as an adult individual. This is the first time that postcranial remains of Tupa. navigans are described, being also an unprecedented record of an articulated tapejarid skeleton from the Araripe Basin.

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
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Fernandes, A. E., Mateus O., Bauluz B., Coimbra R., Ezquerro L., Núñez-Lahuerta C., Suteu C., & Moreno-Azanza M. (2021).  The Paimogo Dinosaur Egg Clutch Revisited: Using One of Portugal’s Most Notable Fossils to Exhibit the Scientific Method. Geoheritage. 13(3), 66., 2021 Abstractfernandes_et_al-2021-geoheritage.pdfWebsite

Found in the Upper Jurassic outcrops of Lourinhã, Portugal, and first published in 1997, the Paimogo dinosaur egg clutch is one of Portugal’s most remarkable fossils, with over one hundred eggs preserved in association with embryonic bones, of the allosauroid theropod Lourinhanosaurus. However, many questions about it have remained unanswered, even until the present day. After its discovery, this extraordinary fossil became the keystone of a small local museum, greatly kick-starting regional tourism, while also holding the fossils in trust for future generations to study. More than 20 years later, continually sustained paleontological interest from the public has even given rise to both a highly successful dinosaur theme park in the region and an aspiring UNESCO Geopark. Recently, a multidisciplinary team of preparators, paleontologists, sedimentologists, mineralogists, and geochemists revisited an unopened jacket from the original excavation using an array of techniques to address various questions. Studies are ongoing, but the corpus of information obtained and the methodologies utilized to gather data have offered an opportunity to design an exhibit around the history of the Paimogo clutch, highlighting the scientific methods involved, and asserting the importance of preserving geological heritage for the future, when new tools will doubtlessly become available to provide yet another new look at old fossils. Here, we describe our analytical procedures and present an innovative exhibit designed to introduce to the public the latest advances on the research behind an iconic piece of Portuguese geoheritage, increasing its value both as a research item and as an educational resource.

Mateus, O., & Castanhinha R. (2008).  PaleoAngola- Predadores de um oceano primitivo. National Geographic Portugal. 8, 26-33., Number 91 Abstract
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Mateus, O., & Castanhinha R. (2008).  PaleoAngola- Predadores de um oceano primitivo. National Geographic Portugal. 8, 26–33., Number 91 Abstract
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