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Mateus, O. (2008).   Fósseis de transição, elos perdidos, fósseis vivos e espécies estáveis . Evolução: História e Argumentos. 77-96., Lisboa Abstract
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Mateus, O. (2016).  Exemplos bizarros de evolução em dinossauros e alguns casos portugueses. Do Big Bang ao Homem. 81-95., Porto: U.Porto Ediçõesmateus_2016_capitulo_livro_dinosaurs.pdf
Mateus, O. (2013).  Decapod crustacean body and ichnofossils from the Mesozoic of Portugal. NA, , 1 Abstract

Book of abstracts of the 5th Symposium on Mesozoic and Decapod Crustaceans

Mateus, O., Laven T., & Knotschke N. (2004).  A dwarf between giants?: A new late Jurassic sauropod from Germany. Journal of Vertebrate Paleontology. 23, 90–90., Number suppl. to Abstract
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Mateus, O. (2012).  New dinosaur and pterosaur tracksites from the Late Jurassic of Portugal. , Chongqing, China: 2012 Abstract Book of Qijiang International Dinosaur Tracks Symposium Abstractmateus_2012_dinosaur_tracks_portugal__abstract_book_qijiang_int_dinosaur_tracks_symposium.pdf

Portugal is rich on dinosaur remains (bones, eggs, and tracks) from Early Jurassic to Late
Cretaceous ages, but mainly from the Late Jurassic, in which dozen of tracksites have been reported.
Here are reported new or poorly known track localities:
1) Five tracksites share the preservation substrate (marine carbonated limestone), age (late Jurassic), geographic area (Leiria district of Portugal), kind of preservation (true tracks), and completeness (trackways of multiple individuals):
i) Praia dos Salgados includes eight trackways, mostly ornithopods and theropods, and one wide gauge sauropod, made in very soft sediment; some preserve the hallux impression.
ii) Serra de Mangues is mostly covered with vegetation but seems to include dozens of tracks comprising theropods, thyreophorans, ornithopods and sauropods.
iii) Sobral da Lagoa (Pedreira do Rio Real) include six trackways but poorly preserved;
and
iv) Serra de Bouro that preserves four sauropod trackways in one single layer.
v) Pedrógão, preserved, at least, one theropod trackway and several isolated tracks of
theropods and ornithopods were found in different layers in the Early Oxfordian.
2) The locality in Praia de Porto das Barcas yielded natural casts of stegosaur tracks
(including pes print with skin impression) and a very large sauropod pes print with about
1.2 m long pes.
3) A new pterosaur tracksite was found in the Late Jurassic of Peralta, Lourinhã (Sobral Member, Lourinhã Fm.; Late Kimmeridgian/Early Tithonian). More than 220 manus and pes tracks have been collected in about five square meters, all ascribed to pterosaurs. The tracks were produced in a thin mud layer that has been covered by sand which preserved them as sandstone mould infill (natural casts). The manus of the largest specimens is 13 cm wide and 5.5 cm long and the pes measures 14.5 cm in length and 9 cm in width. This shows the occurrence of very large pterosaurs in the Late Jurassic. Other pterosaur tracksites in the Late Jurassic of Portugal are: Porto das Barcas (Lourinhã Municipality), South of Consolação (Peniche Municipality), and Zambujal de Baixo (Sesimbra Municipality).

Mateus, O. (2009).  Dinolourinhã – a integração dos jovens na paleontologia: o caso-estudo do Museu da Lourinhã.. Journal of Paleontological Techniques. 28–29., 1 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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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., & Jacinto J. J. (1997).  Ritmos de Actividade e habitat de Hemidactylus turcicus (Reptilia: Gekkonidae) em Évora, Portugal. Cuadernos de INICE. 74-75, 207-214. Abstract
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Mateus, O., Jacobs L. L., Polcyn M. J., Schulp A. S., Neto A. B., & Antunes M. T. (2008).  Dinosaur and turtles from the Turonian of Iembe, Angola. Livro de Resumos de Tercer Congreso Latinoamericano de Paleontología de Vertebrados. 156., Neuquén, Argentina Abstract
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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. (2014).  Geological and paleoecological setting of a marine vertebrate bonebed from the Lower Maastrichtian at Bentiaba, Angola. Proceedings of the Secondary Adaptation of Tetrapods to Aquatic Life. NA., 1 Abstract

A single, geographically and temporally restricted horizon at Bentiaba, Angola (14.3° S), preserves a concentration of skeletons and isolated elements representing sharks, rays, bony fish, at least three species of turtles, two species of plesiosaurs, at least five species of mosasaurs, and rare volant and terrestrial forms. The concentration, referred to as the Bench 19 Fauna, formed on a narrow continental shelf at paleolatitude 24°S as predicted by paleomagnetic data and confirmed by plate motion models. The shelf evolved as a transform passive margin along faults associated with the opening of the South Atlantic. Latitude 24°S falls today along the coast of northern Namibia, an area of intense upwelling and hyperarid coastal desert. The Namibe Basin in southern Angola is separated from the Walvis Basin of Namibia by the Walvis Ridge, and the continental shelf in northern Namibia is eight times the width of that at Bentiaba. However, the sediment entombing the fossils at Bentiaba is an immature feldspathic sand, shown by detrital zircon ages to be derived from nearby exposed granitic shield rocks, suggesting similar climatic and drainage conditions between the two regions. Temporal control of the Bentiaba section is provided by magnetostratigraphy and stable carbon isotope chemostratigraphy anchored by an Ar40/Ar39radiometric date on basalt. The age of Bench 19 is constrained to chron C32n.1n and thus falls between 71.4 and 71.64 Ma. Massive bedding without hummocky cross-bedding or other sedimentary structures indicates deposition in shallow water below wave base. δ18O analysis of bivalve shells indicates a water temperature of 18° C immediately below Bench 19. Nearest neighbor distance peaks at 5 m (n=19

Mateus, O. (2006).  The European Enigmatic Dinosaur Evolution [in Japanese]. The Gigantic dinosaur Expo 2006 (catalogue). 69-71.mateus_2006_european.pdf
Mateus, O. (2012).  Ontogenetical changes in the quadrate of basal tetanurans. Fundamental!. 101–104., 1 Abstract

Although nonavian theropod have received considerable interest in the last years, their ontogeny still remains poorly understood, especially the ontogenetical changes affecting their skull (Rauhutand Fechner, 2005). The quadrate, for instance, is preserved in several embryos and juvenile specimens belonging to many clades of theropods such as the Tyrannosauridae (Carr, 1999), Compsognathidae (Dal Sasso and Maganuco, 2011), Therizinosauroidea (Kúndrat et al., 2007), Oviraptoridae (Norell et al., 1994; Norell et al., 2001; Weishampel et al., 2008) and Troodontidae (Varrichio et al., 2002) but very little is usually said about the anatomy of this bone and no one has ever investigated ontogenetical variation in the nonavian theropod quadrate. The discovery of two quadrates belonging to embryos of the sinraptorid Lourinhanosaurus antunesi from Portugal and five isolated quadrates pertaining to juvenile, subadult and adult specimens of Spinosauridae from Morocco fills this gap and allows some ontogenetic information to be drawn for this bone in these two specific clades of Theropoda.

Mateus, O., Jacobs L. L., Schulp A. S., Polcyn M. J., Tavares T. S., Neto A. B., Morais M. L. {\'ı}sa, & Antunes M. T. (2011).  Angolatitan adamastor, a new sauropod dinosaur and the first record from Angola. Anais da Academia Brasileira de Ciências. 83, 221–233., Number 1: {FapUNIFESP} ({SciELO}) AbstractWebsite
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Mateus, O., Neto de Carvalho C., & Klompmaker A. A. (2013).  Decapod crustacean body and ichnofossils from the Mesozoic of Portugal. 5th Symposium on Mesozoic and Cenozoic Decapod Crustaceans. , 25–27 June 2013, Warszawa: Polish Geological Institute − National Research Institute & AGH University of Science and Technologymateus_et_al_2013_crustacea_mesozoic_portugal_5th_decapod_crustaceans_meeting_2013.pdf
Mateus, O., Jacobs L. L., Schulp A. S., Polcyn M. J., Tavares T. S., Neto A. B., Morais M. L., & Antunes M. T. (2011).  Angolatitan adamastor, a new sauropod dinosaur and the first record from Angola.. Anais da Academia Brasileira de Ciências. 83, 221-233., Jan Abstractmateus_et_al_2011_angolatitan_adamastor_sauropod.pdfWebsite

A forelimb of a new sauropod dinosaur (Angolatitan adamastor n. gen. et sp.) from the Late Turonian of Iembe (Bengo Province) represents the first dinosaur discovery in Angola, and is one of the few occurrences of sauropod dinosaurs in sub-Saharan Africa collected with good chronological controls. The marginal marine sediments yielding the specimen are reported to be late Turonian in age and, thus it represents a non-titanosaurian sauropod in sub-Saharan Africa at a time taken to be dominated by titanosaurian forms. Moreover, Angolatitan adamastor is the only basal Somphospondyli known in the Late Cretaceous which implies in the existence of relict forms in Africa.

Mateus, I., Mateus H., Antunes M. T., Mateus O., Taquet P., Ribeiro V., & Manuppella G. (1997).  Couvée, øe}ufs et embryons d{\textquotesingle}un Dinosaure Théropode du Jurassique supérieur de Lourinha (Portugal). Comptes Rendus de l{\textquotesingle}Académie des Sciences - Series {IIA} - Earth and Planetary Science. 325, 71–78., jul, Number 1: Elsevier {BV} AbstractWebsite
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Mateus, O., Pereira B., Rocha R., & Kullberg J. C. (2018).  Aspiring Geopark Oeste in Portugal: scientific highlights and importance. 8th International Conference on UNESCO Global Geoparks. , 8-14 Sept., Adamello Brenta Geopark, Trentinomateus_et_al_2018_geopark_oeste.pdf
Mateus, O., & Antunes T. M. (2001).  Draconyx loureiroi, a new camptosauridae (Dinosauria, Ornithopoda) from the Late Jurassic of Lourinhã, Portugal. Annales de Paleontologie. 87, 61-73. Abstractmateus_antunes_2001_draconyx_loureiroi_a_new_camptosauridae_dinosauria_ornithopoda_from_the_late_jurassic_of_lourinha_portugal.pdfWebsite

A new ornithopod dinosaur is described here under the name of Draconyx loureiroi n. gen., n. sp. on teeth, caudal vertebrae, forelimb, hindlimb, and foot material that were found in association in the Late Jurassic-Tithonian of Lourinhã, Portugal. Draconyx is a Camptosauridae related to Camptosaurus.

Mateus, O., & Antunes M. T. (2000).  Ceratosaurus sp. (Dinosauria: Theropoda) in the Late Jurassic of Portugal. Abstract volume of the 31st International Geological Congress. , Rio de Janeiro, Brazil Abstractmateus__antunes_2000_-_ceratosaurus_in_portugal.pdf

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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.

Mateus, O. (2014).  Degradation processes and consolidation of Late Jurassic sandstone dinosaur tracks in museum environment (Museum of Lourinhã, Portugal). Geophysical Research Abstracts. Geophysical Research Abstracts, EGU2014–9026–1, 2014., 1 Abstract
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Mateus, O., Milàn J., Romano M., & Whyte M. A. (2011).  New finds of stegosaur tracks from the Upper Jurassic Lourinhã Formation, Portugal. Acta Palaeontologica Polonica. 56(1), 651-658. Abstractmateus_et_al_2011_-_deltapodus_with_skin_impressions_from_portugal.pdf

Eleven new tracks from the Upper Jurassic of Portugal are described and attributed to the stegosaurian ichnogenus Deltapodus. One track exhibits exceptionally well−preserved impressions of skin on the plantar surface, showing the stegosaur foot to be covered by closely spaced skin tubercles of ca. 6 mm in size. The Deltapodus specimens from the Aalenian of England represent the oldest occurrence of stegosaurs and imply an earlier cladogenesis than is recognized in the body fossil record.

Mateus, O., & Milan J. (2005).  Ichnological evidence for giant ornithopod dinosaurs in the Late Jurassic Lourinhã Formation, Portugal. Abstract Book of the International Symposium on Dinosaurs and Other Vertebrates Palaeoichnology. 60–60., Fumanya, Barcelona Abstract
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Mateus, O., Butler R. J., Brusatte S. L., Whiteside J. H., & Steyer J. S. (2014).  The first phytosaur (Diapsida, Archosauriformes) from the Late Triassic of the Iberian Peninsula. Journal of Vertebrate Paleontology. 34, 970-975., Number 4 Abstract
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Mateus, O. (2011).  Occurrence of the marine turtle Thalassemys in the Kimmeridgian of Oker, Germany. Abstracts of the 71st Annual Meeting of the Society of Vertebrate Paleontology. 151., 1 Abstract
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Mateus, O., & Jacinto J. J. (2002).  Contribuição para o estudo de Hemidactylus turcicus (Reptilia, Gekkonidae): ritmos de actividade e microhabitat em Évora, Portugal. VII Congresso Luso-Espanhol de Herpetologia. 136., Évora Abstract
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Mateus, O., & Milàn J. (2010).  A diverse Upper Jurassic dinosaur ichnofauna from central-west Portugal. Lethaia. 43, 245-257., Number 2 Abstract
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Mateus, O., & Antunes M. T. (2000).  Torvosaurus sp.(Dinosauria : Theropoda) in the Late Jurassic of Portugal. Livro de Resumos do I Congresso Ibérico de Paleontologia. 115-117. Abstract
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Mateus, O. (1998).  Lourinhanosaurus antunesi, a new Upper Jurassic allosauroid (Dinosauria : Theropoda) from Lourinha, Portugal. Memórias da Academia de Ciências de Lisboa. 37, 111-124. 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. (2014).  Gigantic Jurassic predators. 52 Things You Should Know About Palaeontology. 56-57.: Agile Libremateus_2014_gigantic_jurassic_predators.pdf
Mateus, O. (2014).  Comparison of modern and fossil Crocodylomorpha eggs and contribution to the oophylogeny of Amniota. Annual Meeting of the European Association of Vertebrate Palaeontologists. , p. 192, Regione Piemonte: European Association of Vertebrate Palaeontologists. Museo Regionale di Scienze Naturali. Abstract
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Mateus, O. (2008).  Two ornithischian dinosaurs renamed: Microceratops Bohlin 1953 and Diceratops Lull 1905. Journal of Paleontology. 82, 423., Number 2 Abstractmateus_2008_two_ornithischians_renamed__microceratops_bohlin_1953_and_diceratops_lull_.pdfWebsite

dinosaur genera Diceratops Lull, 1905 and Microceratops Bohlin, 1953 are preoccupied by the Hymenoptera insects, Diceratops Foerster, 1868 and Microceratops Seyrig, 1952, respectively. Therefore, the name of the ceratopsian dinosaur Diceratops Lull, 1905 from the Late Cretaceous of United States is a junior homonym of the hymenoptera Diceratops Foerster, 1868. Diceratus n. gen. (Greek di ‘‘two,’’ Greek ceratos ‘‘horned’’) is proposed as the replacement name of Diceratops Lull, 1905. Some workers have considered Diceratops synonymous with Triceratops (e.g., Dodson and Currie, 1990) but it was reinstated by Forster (1996) after analysis of the characteristics of all existing ceratopsid skulls, and recent reviews (e.g., Dodson et al., 2004) have considered Diceratops a valid genus.
Due to preoccupation, the name of the ceratopsian dinosaur Microceratops Bohlin, 1953 from the Cretaceous of the Gobi is
a junior homonym of the insect Microceratops Seyrig, 1952. Microceratus n. gen. (Greek micro ‘‘small,’’ Greek ceratos ‘‘horned’’) is proposed as the replacing name of Microceratops Bohlin, 1953.
Sereno (2000:489) has declared Microceratops a nomen dubium since the holotype material lacks any diagnostic features, a
convention followed by You and Dodson (2004:480). However, the name is still used by Le Loeuff et al. (2002), Lucas (2006),
Alifanov (2003) and Xu et al. (2002), and such practice justifies the renaming of the genus.
In order to preserve some stability, the names chosen here deliberately preserve the same prefixes.

Mateus, O., Dinis J., & Cunha P. (2014).  Upper Jurassic to Lowermost Cretaceous of the Lusitanian Basin, Portugal-landscapes where dinosaurs walked. Ciências da Terra, special. , Number 8 Abstract
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Mateus, O. (2011).  A new metoposaurid (temnospondyl) bonebed from the Late Triassic of Portugal. 31, , 1 Abstract

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 char- acters 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 distri- bution 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.

Mateus, O. (2010).  Paleontological collections of the Museum of Lourinhã (Portugal). (JM Brandão, Callapez, PM, O. Mateus, Castro, P, Ed.).Colecções e museus de Geologia: missão e gestão. 121–126., 1: Ed. Universidade de Coimbra e Centro de Estudos de História e Filosofia da Ciência Abstract
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Mateus, O., & Antunes M. T. (2000).  Late Jurassic dinosaurs of Portugal. Abstracts of the 1st Symposium of European Dinosaurs. , Dusseldorf, Germany. Abstract
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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 Abstract
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Mateus, O. (1998).  Dinossauros Portugueses. Caderno de resumos do I Congresso de Estudantes de Biologia. 13., Évora 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., Neuquén, Argentina Abstract
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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.: Springer International Publishing Abstractmateus2019_chapter_thefossilrecordofbiodiversityi.pdf

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.

Mateus, O., & Jacinto J. J. (2002).  Contribuição para o estudo de Hemidactylus turcicus (Reptilia, Gekkonidae): ritmos de actividade e microhabitat em Évora, Portugal. VII Congresso Luso-Espanhol de Herpetologia. 136., Évora Abstract

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