Publications in the Year: 2009

Book Chapter

authors listed, N.  2009.  International Conference on the Geological Collections and Museums: mission and management., Jan. (Brandao J, Callapez P, Mateus O, Castro P, Ed.).: Journal of Paleontological Techniques 5 (special volume) Abstract
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Conference Paper

Mateus, O.  2009.  DINOSAUR EGGSHELL AND EMBRYO LOCALITIES IN LOURINHA FORMATION, LATE JURASSIC, PORTUGAL, 1. Journal of Vertebrate Paleontology. 29:76A–76A. Abstract
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Mateus, O.  2009.  Colecções paleontológicas do Museu da Lourinhã (Portugal) / Paleontological collections of the Museum of Lourinhã (Portugal), 1. Journal of Paleontological Techniques. (Unknown Unknown, Ed.).:18–19.. Abstract
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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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Tomas, C, Mateus O, Abreu C.  2009.  Dinolourinhã; a integração dos jovens na paleontologia: o caso-estudo do Museu da Lourinhã, Jan. Journal of Paleontological Techniques 5: 28-29.. :28-29. Abstracttomas_et_al_2009_dinolourinha_abstracts_jpt.pdf

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Tomas, C, Mateus O, Abreu C.  2009.  Dinolourinhã – a integração dos jovens na paleontologia: o caso-estudo do Museu da Lourinhã.. Journal of Paleontological Techniques 5: 28-29.. Abstract
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Mateus, O.  2009.  Dinolourinhã – a integração dos jovens na paleontologia: o caso-estudo do Museu da Lourinhã., 1. Journal of Paleontological Techniques. :28–29. Abstract
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Conference Proceedings

Vineyard, DP, Jacobs LL, Polcyn MJ, Mateus O, Schulp AS, Strganac C.  2009.  Euclastes from the Maastrichtian of Angola and the distribution of the Angolachelonia. Eugene Gaffney Turtle Symposium. , Royal Tyrrell Museum
Castanhinha, R, Araújo R, Mateus O.  2009.  Dinosaur eggshell and embryo localities in Lourinhã Formation, Late Jurassic, Portugal. Journal of Vertebrate Paleontology, 29(3): . :76A. Abstractcastanhinhaetal2009dinosaureggshellp.pdf

Four different localities from the Late Jurassic of Lourinhã formation with eggshells and embryos were studied: Paimogo (lower Amoreira-Porto Novo member), Peralta (Praia Azul member), Porto das barcas (Bombarral member) and Casal da Rôla (Amoreira-Porto Novo member). All but Casal da Rôla have embryonic material. Preliminary results show that eggshells from Paimogo correspond to obliquiprismatic morphotype (0.92mm thick), similar to those from Morrison Formation. Within Paimogo site a different type of eggshell was discovered, having a radial section of 153 μm with a mammilary layer measuring 65 μm. Porto das Barcas eggshells represent a discretispherulitic morphotype (1,23 mm thick).
This locality presents a nest 60-cm diameter containing many eggshells but an indeterminate number of eggs. Some embryonic bones were discovered between the eggshells including teeth and skull bones showing that the eggs belong to a saurischian, tentatively a sauropod dinosaur. Peralta nest eggshells are preliminary ascribed to obliquiprismatic morphotype (column: 0,56mm and mammilla: 0,21mm) probably related to Paimogo’s nest taxon (Lourinhanosaurus). Peralta site bears embryonic bones namely small theropod teeth associated with bone fragments, and unidentifiable dinosaur vertebra. Only eggshells have been collected at Casal da Rôla (ML1194). The eggshells (0,78mm thick) are prismatic morphotype and it was impossible to determine the pore system, the outer surface is smooth with no ornamentation.
Lourinhã formation has the oldest sauropod and theropod nest with embryos known so far.

Journal Article

Polcyn, M, Jacobs L, Mateus O, Schulp A.  2009.  New specimens of Angolasaurus bocagei and comments on the early radiations of plioplatecarpine mosasaurs. Journal of Vertebrate Paleontology. Journal of Vertebrate Paleontology. 29:165., Number 3 Abstract
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Mateus, O.  2009.  The Cretaceous Skeleton Coast of Angola, 1. Journal of Vertebrate Paleontology. 29:121A., Number 3: Taylor & Francis Abstract

THE CRETACEOUS SKELETON COAST OF ANGOLA JACOBS, Louis, SMU, Dallas, TX, USA; POLCYN, Michael, SMU, Dallas, TX, USA; MATEUS, Octávio, Museu da Lourinhã, Lourinhã, Portugal; SCHULP, Anne, Natuurhistorisch Museum Maastricht, Maastricht, Netherlands; NETO, André , Universidade Agostinho Neto, Luanda, Angola Cretaceous coastal sediments of Angola present a rich and diverse fauna of marine amniotes, including turtles, mosasaurs, and plesiosaurs. The abundance of mosasaurs in particular suggests a highly productive coastal area. Angola today lies at the northern limit of the Namibian Desert, the so-called Skeleton Coast, which results from prevailing southeasterly winds of the descending limb of the southern Hadley Cell sweeping across the African coast. The Benguela upwelling and a highly productive sea are found today off the Namibian Desert coast. However, the Benguela upwelling system, based on results of DSDP studies, is said to have originated in the late Neogene and therefore cannot explain the productivity found along the length of the West African coast. The explanation is found in the northward drift of Africa through the arid climate zone, and is demonstrated by the tracing of the paleogeographic position of fossil localities through time.

Mateus, O, Jacobs L, Polcyn M, Schulp AS, Vineyard D, Buta Neto A, Telles Antunes M.  2009.  The oldest African eucryptodiran turtle from the Cretaceous of Angola. Acta Palaeontologica Polonica. 54:581-588., Number 4 Abstract
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Mateus, O, Jacobs L, Polcyn M, Schulp AS, Vineyard D, Neto AB, Antunes MT.  2009.  The oldest African eucryptodiran turtle from the Cretaceous of Angola, Jan. Acta Palaeontologica Polonica. 54:581-588.: Univ Agostinho Neto, Univ Nova Lisboa, Museu Lourinha, Acad Ciencias Lisboa, Nat Hist Museum Maastricht, So Methodist Univ Abstractmateus_et_al_2009_the_oldest_african_angolachelys_angola_turtle.pdfWebsite

A new Late Cretaceous turtle, Angolachelys mbaxi gen. et sp. nov., from the Turonian (90 Mya) of Angola, represents the oldest eucryptodire from Africa. Phylogenetic analysis recovers Angolachelys mbaxi as the sister taxon of Sandownia harrisi from the Aptian of Isle of Wight, England. An unnamed turtle from the Albian Glen Rose Formation of Texas (USA) and the Kimmeridgian turtle Solnhofia parsonsi (Germany), are successively more distant sister taxa. Bootstrap analysis suggests those four taxa together form a previously unrecognized monophyletic clade of marine turtles, herein named Angolachelonia clade nov., supported by the following synapomorphies: mandibular articulation of quadrate aligned with or posterior to the occiput, and basisphenoid not visible or visibility greatly reduced in ventral view. Basal eucryptodires and angolachelonians originated in the northern hemisphere, thus Angolachelys represents one of the first marine amniote lineages to have invaded the South Atlantic after separation of Africa and South America.

Jacobs, LL, Polcyn MJ, Mateus O, Schulp AS, Neto A.  2009.  The Cretaceous Skeleton Coast of Angola. Journal of Vertebrate Paleontology. 29:121–121., Number 3 Abstract
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Jacobs, L, Polcyn M, Mateus O, Schulp AS, Neto AB.  2009.  The Cretaceous Skeleton Coast of Angola, Jan. Journal of Vertebrate Paleontology. 29:121A. Abstractjacobs_et_al_2009cretaceousskeletoncoas.pdfWebsite

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Mateus, O, Maidment SCR, Christiansen NA.  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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Eberth, DA, Kobayashi Y, Lee Y-N, Mateus O, Therrien F, Zelenitsky DK, Norell MA.  2009.  Assignment of Yamaceratops dorngobiensis and associated redbeds at Shine Us Khudag (eastern Gobi, Dorngobi Province, Mongolia) to the redescribed Javkhlant Formation (Upper Cretaceous), mar. Journal of Vertebrate Paleontology. 29:295–302., Number 1: Informa {UK} Limited AbstractWebsite
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Castanhinha, R, Araujo R, Mateus O.  2009.  Dinosaur eggshell and embryo localities in Lourinhã Formation, Late Jurassic, Portugal. Journal of Vertebrate Paleontology. 29:76–76., Number 3 Abstract
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Mateus, O.  2009.  Preparation techniques applied to a stegosaurian Dinosaur from Portugal, 1. Journal of Paleontological Techniques. 5:1–24., Number NA Abstract
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Jacobs, L, Polcyn M, Mateus O, Schulp, Neto A.  2009.  The Cretaceous Skeleton Coast of Angola. Journal of Vertebrate Paleontology. 29:121., Number 3 Abstract
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