Octávio Mateus

Octávio Mateus
University NOVA of Lisbon · Departamento Ciências da Terra (Dept. Earth Sciences)

PhD

About

300
Publications
231,398
Reads
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4,463
Citations
Citations since 2016
129 Research Items
3041 Citations
20162017201820192020202120220100200300400
20162017201820192020202120220100200300400
20162017201820192020202120220100200300400
20162017201820192020202120220100200300400
Additional affiliations
September 2012 - present
Universidade NOVA de Lisboa
Position
  • Professor (Assistant)
September 2012 - present
Universidade NOVA de Lisboa
Position
  • Professor (Assistant)
Education
May 2000 - June 2005
Faculdade de Ciências e Tecnologia - Universidade Nova de Lisboa
Field of study
  • Paleontology
September 1993 - June 1998
Universidade de Évora
Field of study
  • Biology

Publications

Publications (300)
Article
Full-text available
Titanosauriforms represent a diverse and globally distributed clade of neosauropod dinosaurs, but their inter‐relationships remain poorly understood. Here we redescribe Lusotitan atalaiensis from the Late Jurassic Lourinhã Formation of Portugal, a taxon previously referred to Brachiosaurus. The lectotype includes cervical, dorsal, and caudal verteb...
Article
Full-text available
Theropod dinosaurs form a highly diversified clade, and their teeth are some of the most common components of the Mesozoic dinosaur fossil record. This is the case in the Lourinhã Formation (Late Jurassic, Kimmeridgian-Tithonian) of Portugal, where theropod teeth are particularly abundant and diverse. Four isolated theropod teeth are here described...
Article
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The Lourinhã Formation (Kimmeridgian-Tithonian) of Central West Portugal is well known for its diversified dinosaur fauna similar to that of the Morrison Formation of North America; both areas share dinosaur taxa including the top predator Torvosaurus, reported in Portugal. The material assigned to the Portuguese T. tanneri, consisting of a right m...
Article
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Sauropods were the largest animals ever to walk the earth, and evolved several specializations in their limbs in order to support their body mass. Their legs became columnar and their manual digits became reduced and encapsulated in tissue to form a single weight-bearing unit in the derived sauropods. A new three-dimensionally preserved cast of a s...
Conference Paper
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One cervid phalanx of large proportions (CINT-LU-1) was recovered at Cova do Rei Cintolo, Lugo, in 2020 by speleologist from the CETRA club, during a topographical campaign, being now deposited at the IUX (Instituto Universitario de Xeoloxía Isidro Parga Pondal, A Coruña). Cova do Rei Cintolo is a karstic system of great development, including seve...
Conference Paper
Goniopholidids are common in the Portuguese fossil record. Fossil remains of this clade have been found since the late XIX century, such as the putative goniopholidid Oweniasuchus lusitanicus from the Cenomanian of Cacém and Lisbon area, Goniopholis baryglyphaeus from the late Upper Jurassic of the Alcobaça Formation in the Guimarota coal mine, or...
Article
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Here, we describe the first pterosaur remains from Angola, an assemblage of fourteen bones from the Lower Maastrichtian marine deposits of Bentiaba, Namibe Province. One new species is introduced, Epapatelo otyikokolo, gen. et sp. nov., which comprises an articulated partial left humerus and ulna as well as an articulated left ulna and radius (from...
Article
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During the Triassic, Batrachia diverged into ancestors of frogs (Salientia) and sala-manders (Caudata). Fossils of Triassic batrachians are rare and found only in a few outcrops, such as the Middle Sakamena Formation of Madagascar (Induan). Only three Triassic taxa have been described, the two early frogs Triadobatrachus and Czatkiobatrachus and th...
Article
Since 2017, a sea anemone species has been registered in central Portugal with a morphology comparable to Phymactis papillosa , from the Pacific shore of south and central America. In this paper, we have collected two individuals from Cascais, Portugal, extracted their DNA and amplified and sequenced the internal transcribed spacers I and II, marke...
Conference Paper
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The revision of the giraffid material stored at the Museu Geológico (Lisbon, Portugal) using current analytical tools and methods leads us to the first identification in Portugal of a member of the Samotheriinae-Sivatheriinae clade. The material consists of a metacarpal from Casais da Formiga, Azambuja (MG 5733, later Middle Miocene, MN 7: 13-12.5...
Conference Paper
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The Algar do Vale da Pena is a cave that was discovered during limestone mining works around 1980, at the Natural Park of Serras de Aire e Candeeiros, Portugal. The entrance to the cave, through the collapsed roof, is a 30 meter near-vertical well, inaccessible without means of vertical progression and specialized equipment. Soon after the discover...
Article
Albanerpetontidae form an enigmatic extinct group of lissamphibians, ranging from the early Bathonian to the early Pleistocene. The Upper Jurassic outcrops of Portugal yield a large collection of material, suitable for addressing the intraspecific variation in and diagnostic potential of the characteristic fused frontals. We revise 58 specimens fro...
Article
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O Planalto das Cesaredas é formado por calcários marinhos do Jurássico Inferior a Superior (Toarciano ao Titoniano, ~180 a 144 milhões de anos) e alberga várias cavidades naturais com condições propícias à vida subterrânea. Localizado a baixa altitude na transição entre o maciço de Montejunto e vale Tifónico das Caldas da Rainha, este afloramento c...
Article
The Upper Jurassic Lourinhã Formation is well known for its rich assemblage of fossil vertebrates. In this formation, ornithopod dinosaurs are represented by two iguanodontian species, Eousdryosaurus nanohallucis and Draconyx loureiroi. We recently became aware of unreported material belonging to the holotype of Draconyx loureiroi, consisting of pa...
Article
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Spinosaurids are some of the most enigmatic Mesozoic theropod dinosaurs due to their unique adaptations to aquatic environments and their relative scarcity. Their taxonomy has proven to be especially problematic. Recent discoveries from Western Europe in general, specifically Iberia, provide some of the best specimens for the understanding of their...
Article
Modern birds are typified by the presence of feathers, complex evolutionary innovations that were already widespread in the group of theropod dinosaurs (Maniraptoriformes) that include crown Aves. Squamous or scaly reptilian-like skin is, however, considered the plesiomorphic condition for theropods and dinosaurs more broadly. Here, we review the m...
Article
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The record of Late Jurassic stegosaur tracks from the Lourinhã Formation (Kimmeridgian-Tithonian) is here revised. Thirty-eight dinosaur tracks, preserved as natural infill casts, are here reported, and thirty-two of them are attributed to the ichnogenus Deltapodus. Four of those present impressions of skin, with polygonal scales and random pattern...
Article
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Dracopelta zbyszewskii is a poorly known ankylosaur dinosaur from the Upper Jurassic of Portugal. Even its early history has hitherto remained problematic, mostly due to scarce recorded information. By reviewing published literature, unpublished photos and notes, and field observations, we identify the type locality as a roadcut 400 m Southeast of...
Article
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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 facilita...
Article
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 th...
Article
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The ichthyosaur fossil record of Portugal is composed of specimens from the localities of São Pedro de Moel, Alhadas, Cadima, Murtede, Casal do Combo, Condeixa, Alvaiázere and Tomar, within the confines of the Lusitanian Basin, ranging in age from the Sinemurian to the Aalenian. We reviewed the historical ichthyosaur finds in Portugal, and in this...
Article
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...
Article
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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 make...
Article
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We report a new specimen of the plesiosaur Cardiocorax mukulu that includes the most complete plesiosaur skull from sub-Saharan Africa. The well-preserved three-dimensional nature of the skull offers rare insight into the cranial anatomy of elasmosaurid plesiosaurians. The new specimen of Cardiocorax mukulu was recovered from Bentiaba, Namibe Provi...
Article
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A large, well-preserved vertebrate coprolite was found in a lacustrine sediment in the Malmros Klint Formation of the Late Triassic Fleming Fjord Group in the Jameson Land Basin, central East Greenland. The size and internal and external morphology of the coprolite is consistent with that of crocodilian coprolites and one end of the coprolite exhib...
Conference Paper
Full-text available
The Upper Jurassic Lourinhã Formation is a siliciclastic continental unit, which yielded a diverse vertebrate fauna, dated from upper-most Kimmeridgian to lower-most Tithonian. Among dinosaurians, extremely diverse and abundant were saurischians, while ornithischians are extremely rare. In 1991, Museu da Lourinhã excavated a specimen of a medium-si...
Conference Paper
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Iguanodontian dinosaurs are common in Early Cretaceous deposits across all Europe but their Jurassic relatives are somewhat less well understood, with few remains described in Iberia and England. Most of what is currently known from the Iberian record comes from the Upper Jurassic Lourinhã Formation, in west-central Portugal. The only well-establis...
Article
We here describe an articulated partial skeleton of a small neosuchian crocodylomorph from the Lourinhã Formation (Late Jurassic, Portugal). The skeleton corresponds to the posterior region of the trunk and consists of dorsal, ventral and limb osteoderms, dorsal vertebrae, thoracic ribs and part of the left hindlimb. The paravertebral armour is com...
Article
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The lithostratigraphy of the Triassic deposits of the Jameson Land Basin in central East Greenland is revised. The new Scoresby Land Supergroup is now composed of the Wordie Creek, Pingo Dal, Gipsdalen and Fleming Fjord Groups. This paper only deals with the lithostratigraphy of the late Early-Late Triassic continental deposits of the latter three...
Article
Full-text available
The lithostratigraphy of the Triassic deposits of the Jameson Land Basin in central East Greenland is revised. The new Scoresby Land Supergroup is now composed of the Wordie Creek, Pingo Dal, Gipsdalen and Fleming Fjord Groups. This paper only deals with the lithostratigraphy of the late Early-Late Triassic continental deposits of the latter three...
Article
Full-text available
Ornithopods are one of the most speciose group of herbivorous dinosaurs, rising during the Jurassic and getting extinct at the Cretaceous–Paleogene boundary. However, most of the attention has been given to derived forms (hadrosaurids). Herein, cranial and post-cranial ornithopod material from the Upper Jurassic Lourinhã Formation and housed at Mus...
Conference Paper
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The volcanic rocks of the Catoca Diamond Mine, located in northeastern Angola, were formed in a volcanic eruption ~118 million years ago (Ma). Early Cretaceous mammalian, crocodilian, and sauropod dinosaur footprints were discovered in crater lake sediments above ~118 Ma tuffisitic kimberlites (Pervov et al., 2011). These footprints are among the r...
Article
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The Algar do Vale da Pena is a cave situated in the Natural Park of Serras de Aire e Candeeiros (Leiria, Portugal). It was discovered and opened in late 1980s in a limestone quarry excavation. The cave has five fossil bone concentrations that we interpreted as five individuals of different sizes. The remains are identified as Ursus arctos based on...
Article
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Crocodylomorphs were a diverse clade in the Late Jurassic of Portugal, with six taxa reported to date. Here we describe 126 isolated teeth recovered by screen-washing of sediments from Valmitão (Lourinhã, Portugal, late Kimmeridgian–Tithonian), a vertebrate microfossil assemblage in which at least five distinct crocodylomorph taxa are represented....
Article
Full-text available
Crocodylomorphs were a diverse clade in the Late Jurassic of Portugal, with six taxa reported to date. Here we describe 126 isolated teeth recovered by screen-washing of sediments from Valmitão (Lourinhã, Portugal, late Kimmeridgian–Tithonian), a vertebrate microfossil assemblage in which at least five distinct crocodylomorph taxa are represented....
Article
Full-text available
Isolated theropod teeth are some of the most common fossils in the dinosaur fossil record and are continually reported in the literature. Recently developed quantitative methods have improved our ability to test the affinities of isolated teeth in a repeatable framework. But in most studies, teeth are diagnosed on qualitative characters. This can b...
Article
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The stegosaur species Miragaia longicollum was erected based on a partial anterior skeleton from the Upper Jurassic of Portugal. Until then, almost all stegosaur specimens in Portugal and Spain had been identified as Dacentrurus armatus, the sister taxon of M. longicollum and only other member of the clade Dacentrurinae. The holotypes of the two sp...
Chapter
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resumo 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 táxon...
Conference Paper
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Lapa da Canada (District of Santarem, municipality of Alvaiázere, Portugal) is an uncharted cave situated in the karst of the “Maciço Calcário Estremenho”. Vertebrate remains were collected in October of 2014 from four (A, B, C and D) galleries of the cave. These recovered remains belong to at least nine vertebrate taxa: Equus ferus (right metatars...
Conference Paper
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Santa Margarida (Municipality of Loulé, Algarve, South Portugal) is situated in the karst of the Picavessa formation, Lower Jurassic in age. Several blocks of breccia and cemented terra rossa with numerous cranial and postcranial remains of microvertebrates were recovered by a team of the FCT-UNL in 2017 from a traditional rural man-made wall. Afte...
Article
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 Peninsul...
Article
The fossil record of Eusuchia extends back to the Early Cretaceous (Barremian), with the English species Hylaeochampsa vectiana being the oldest known representative of the clade so far. However, the eusuchian record from the Barremian to the Santonian is scarce and fragmentary worldwide. Here we described a new eusuchian crocodylomorph based on a...