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Zootaxa,Montealtosuchus Arrudacamposi, a New Peirosaurid
Zootaxa 1607: 35–46 (2007) ISSN 1175-5326 (print edition) www.mapress.com/zootaxa/ ZOOTAXA Copyright © 2007 · Magnolia Press ISSN 1175-5334 (online edition) Montealtosuchus arrudacamposi, a new peirosaurid crocodile (Mesoeucrocodylia) from the Late Cretaceous Adamantina Formation of Brazil ISMAR DE SOUZA CARVALHO1, FELIPE MESQUITA DE VASCONCELLOS1 & SANDRA APARE- CIDA SIMIONATO TAVARES2 1Universidade Federal do Rio de Janeiro. Departamento de Geologia, CCMN/IGEO. 21.949-900 Cidade Universitária - Ilha do Fundão. Rio de Janeiro - RJ. Brasil. E-mail: [email protected]; [email protected] 2Museu de Paleontologia de Monte Alto. Praça do Centenário, Centro de Artes s/no. 15.910-000, MonteAlto-Brazil. E-mail: [email protected] Abstract We describe a new species of Peirosauridae (Crocodyliformes, Mesoeucrocodylia), Montealtosuchus arrudacamposi gen. nov. et sp. nov., from the Late Cretaceous (Turonian-Santonian) strata of the Bauru Basin, Brazil. Montealtosuchus was found at the outskirts of Monte Alto County in reddish sandstones of the Adamantina Formation. This specimen is exquisitely preserved with skull, mandible, postcranial and exoskeletal elements in articulation that provides critical information of the anatomy of this group. The occurrence of Peirosauridae in the Adamantina Formation (Turonian-San- tonian) widens the chronostratigraphic range of this Mesoeucrocodylia taxon in Brazil. Recent analysis suggests that the Peirosauridae is restricted to the Late Cretaceous deposits of South America. Key words: Montealtosuchus arrudacamposi gen. nov. et sp. nov.; Peirosauridae; Upper Cretaceous; Adamantina For- mation; Bauru Basin Introduction The Bauru Basin comprises an area between latitudes 18o S and 24o S, and longitudes 47o W and 56o W, and covers an area over 370.000 km2 in the southeast interior of Brazil, with outcrops in São Paulo, Minas Gerais, Mato Grosso do Sul and Goiás states. -
8. Archosaur Phylogeny and the Relationships of the Crocodylia
8. Archosaur phylogeny and the relationships of the Crocodylia MICHAEL J. BENTON Department of Geology, The Queen's University of Belfast, Belfast, UK JAMES M. CLARK* Department of Anatomy, University of Chicago, Chicago, Illinois, USA Abstract The Archosauria include the living crocodilians and birds, as well as the fossil dinosaurs, pterosaurs, and basal 'thecodontians'. Cladograms of the basal archosaurs and of the crocodylomorphs are given in this paper. There are three primitive archosaur groups, the Proterosuchidae, the Erythrosuchidae, and the Proterochampsidae, which fall outside the crown-group (crocodilian line plus bird line), and these have been defined as plesions to a restricted Archosauria by Gauthier. The Early Triassic Euparkeria may also fall outside this crown-group, or it may lie on the bird line. The crown-group of archosaurs divides into the Ornithosuchia (the 'bird line': Orn- ithosuchidae, Lagosuchidae, Pterosauria, Dinosauria) and the Croco- dylotarsi nov. (the 'crocodilian line': Phytosauridae, Crocodylo- morpha, Stagonolepididae, Rauisuchidae, and Poposauridae). The latter three families may form a clade (Pseudosuchia s.str.), or the Poposauridae may pair off with Crocodylomorpha. The Crocodylomorpha includes all crocodilians, as well as crocodi- lian-like Triassic and Jurassic terrestrial forms. The Crocodyliformes include the traditional 'Protosuchia', 'Mesosuchia', and Eusuchia, and they are defined by a large number of synapomorphies, particularly of the braincase and occipital regions. The 'protosuchians' (mainly Early *Present address: Department of Zoology, Storer Hall, University of California, Davis, Cali- fornia, USA. The Phylogeny and Classification of the Tetrapods, Volume 1: Amphibians, Reptiles, Birds (ed. M.J. Benton), Systematics Association Special Volume 35A . pp. 295-338. Clarendon Press, Oxford, 1988. -
A Teleosaurid (Crocodylia, Mesosuchia) from the Toarcian of Madagascar and Its Palaeobiogeographical Significance
Pal~iont. Z. 55 I 3/4 313-319 Stuttgart, Dezember 1981 I A teleosaurid (Crocodylia, Mesosuchia) from the Toarcian of Madagascar and its palaeobiogeographical significance ERIC BUFFETAUT, GENEVIJ~VE TERMIER & HENRI TERM1ER, Paris* With 2 figures in the text Kurzfassung: Ein Oberkieferfragment eines Krokodiliers aus dem Toarcium von NW-Madagaskar wird als Stenosaurus sp. (Familie Teleosauridae) bestimmt. Es ist der ~ilteste aus Madagaskar bekannte Kro- kodilier und deutet aunistische B eziehungen mit Westeuropa und Siidamerika an. Die Verbreitung der ober- liassischen marinen Krokodilier, die derjenigen des Ammoniten Bouleiceras iihnelt, weist auf die Existenz einer epikontinentalen Seestraf~e vonder Tethys fiber die transerythr~iische Provinz bis zum siidlichen Tell Afrikas; diese Seestral~e bildete eine Verbindung zwischen Westeuropa und Siidamerika. A b s t r a c t : A fragment of the upper jaw of a crocodilian from the Toarcian of NW Madagascar is refer- red to Steneosaurus sp. (family Teleosauridae). It is the earliest known crocodilian from Madagascar. It indi- cates faunal relationships with western Europe and South America. The distribution of late Liassic marine crocodilians, similar to that of the ammonite Bouleiceras, suggests the existence of an epicontinental seaway from the Tethyan region to the southern part of Africa via the Transerythrean Province, which provided a marine connection between western Europe and South America. R ~ s u m ~ : Un fragment de mfichoire sup~rieure de Crocodilien du Toarcien du NW de Madagascar est rapport8 ~Steneosaurus sp. (famille Teleosauridae). C'est le plus ancien Crocodilien connu ~iMadagascar. I1 indique des relations fauniques avec l'Europe occidentale et l'Am&ique du Sud. -
Taxonomic Reappraisal of the Sphagesaurid Crocodyliform Sphagesaurus Montealtensis from the Late Cretaceous Adamantina Formation of São Paulo State, Brazil
TERMS OF USE This pdf is provided by Magnolia Press for private/research use. Commercial sale or deposition in a public library or website is prohibited. Zootaxa 3686 (2): 183–200 ISSN 1175-5326 (print edition) www.mapress.com/zootaxa/ Article ZOOTAXA Copyright © 2013 Magnolia Press ISSN 1175-5334 (online edition) http://dx.doi.org/10.11646/zootaxa.3686.2.4 http://zoobank.org/urn:lsid:zoobank.org:pub:9F87DAC0-E2BE-4282-A4F7-86258B0C8668 Taxonomic reappraisal of the sphagesaurid crocodyliform Sphagesaurus montealtensis from the Late Cretaceous Adamantina Formation of São Paulo State, Brazil FABIANO VIDOI IORI¹,², THIAGO DA SILVA MARINHO3, ISMAR DE SOUZA CARVALHO¹ & ANTONIO CELSO DE ARRUDA CAMPOS² 1UFRJ, Departamento de Geologia, CCMN/IGEO, Cidade Universitária – Ilha do Fundão, 21949-900. Rio de Janeiro, Brazil. E-mail: [email protected]; [email protected] 2Museu de Paleontologia “Prof. Antonio Celso de Arruda Campos”, Praça do Centenário s/n, Centro, 15910-000 – Monte Alto, Brazil 3Instituto de Ciências Exatas, Naturais e Educação (ICENE), Universidade Federal do Triângulo Mineiro (UFTM), Av. Dr. Randolfo Borges Jr. 1700 , Univerdecidade, 38064-200, Uberaba, Minas Gerais, Brasil. [email protected] Abstract Sphagesaurus montealtensis is a sphagesaurid whose original description was based on a comparison with Sphagesaurus huenei, the only species of the clade described to that date. Better preparation of the holotype and the discovery of a new specimen have allowed the review of some characteristics and the identification -
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DOI 10.5935/0100-929X.20120007 Revista do Instituto Geológico, São Paulo, 33 (2), 13-29, 2012 DESCRIÇÃO DE UM ESPÉCIME JUVENIL DE BAURUSUCHIDAE (CROCODYLIFORMES: MESOEUCROCODYLIA) DO GRUPO BAURU (NEOCRETÁCEO): CONSIDERAÇÕES PRELIMINARES SOBRE ONTOGENIA Caio Fabricio Cezar GEROTO Reinaldo José BERTINI RESUMO Entre os táxons de Crocodyliformes do Grupo Bauru (Neocretáceo), grande quan- tidade de morfótipos, incluindo materiais cranianos e pós-cranianos, vem sendo des- crita em associação a Baurusuchus pachecoi. Porém, a falta de estudos ontogenéticos, como os realizados para Mariliasuchus amarali, levou à atribuição de novos gêneros e espécies aos poucos crânios completos encontrados. A presente contribuição traz a descrição de um espécime juvenil de Baurusuchidae depositado no acervo do Museu de Ciências da Terra no Rio de Janeiro sob o número MCT 1724 - R. Trata-se de um rostro e mandíbula associados e em oclusão, com o lado esquerdo melhor preservado que o direito, e dentição zifodonte extremamente reduzida. O fóssil possui 125,3 mm de comprimento preservado da porção anterior do pré-maxilar até a extremidade pos- terior do dentário; 117,5 mm de comprimento preservado do pré-maxilar aos palatinos e altura lateral de 51,4 mm. Entre as informações de caráter ontogenético identificadas destacam-se: ornamentação suave composta de estrias vermiformes muito espaçadas e largas, linha ventral do maxilar mais reta, dentário levemente inclinado dorsalmente na porção mediana e sínfise mandibular menos vertical que em outros baurussúqui- dos de tamanho maior. A maioria das características rostrais e dentárias, diagnósticas para Baurusuchus pachecoi, foi identificada no exemplar MCT 1724 - R: rostro alto e comprimido lateralmente, além de dentição zifodonte com forte redução dentária, que culmina em quatro dentes pré-maxilares e cinco maxilares. -
Craniofacial Morphology of Simosuchus Clarki (Crocodyliformes: Notosuchia) from the Late Cretaceous of Madagascar
Society of Vertebrate Paleontology Memoir 10 Journal of Vertebrate Paleontology Volume 30, Supplement to Number 6: 13–98, November 2010 © 2010 by the Society of Vertebrate Paleontology CRANIOFACIAL MORPHOLOGY OF SIMOSUCHUS CLARKI (CROCODYLIFORMES: NOTOSUCHIA) FROM THE LATE CRETACEOUS OF MADAGASCAR NATHAN J. KLEY,*,1 JOSEPH J. W. SERTICH,1 ALAN H. TURNER,1 DAVID W. KRAUSE,1 PATRICK M. O’CONNOR,2 and JUSTIN A. GEORGI3 1Department of Anatomical Sciences, Stony Brook University, Stony Brook, New York, 11794-8081, U.S.A., [email protected]; [email protected]; [email protected]; [email protected]; 2Department of Biomedical Sciences, Ohio University College of Osteopathic Medicine, Athens, Ohio 45701, U.S.A., [email protected]; 3Department of Anatomy, Arizona College of Osteopathic Medicine, Midwestern University, Glendale, Arizona 85308, U.S.A., [email protected] ABSTRACT—Simosuchus clarki is a small, pug-nosed notosuchian crocodyliform from the Late Cretaceous of Madagascar. Originally described on the basis of a single specimen including a remarkably complete and well-preserved skull and lower jaw, S. clarki is now known from five additional specimens that preserve portions of the craniofacial skeleton. Collectively, these six specimens represent all elements of the head skeleton except the stapedes, thus making the craniofacial skeleton of S. clarki one of the best and most completely preserved among all known basal mesoeucrocodylians. In this report, we provide a detailed description of the entire head skeleton of S. clarki, including a portion of the hyobranchial apparatus. The two most complete and well-preserved specimens differ substantially in several size and shape variables (e.g., projections, angulations, and areas of ornamentation), suggestive of sexual dimorphism. -
A New Pissarrachampsinae Specimen from the Bauru Basin, Brazil, Adds
YCRES104969_proof ■ 29 July 2021 ■ 1/13 Cretaceous Research xxx (xxxx) xxx 55 Contents lists available at ScienceDirect 56 57 58 Cretaceous Research 59 60 journal homepage: www.elsevier.com/locate/CretRes 61 62 63 64 65 1 A new Pissarrachampsinae specimen from the Bauru Basin, Brazil, 66 2 67 3 adds data to the understanding of the Baurusuchidae 68 4 (Mesoeucrocodylia, Notosuchia) distribution in the Late Cretaceous of 69 5 70 6 Q7 South America 71 7 72 8 a, * b, c d Q6 Gustavo Darlim , Ismar de Souza Carvalho , Sandra Aparecida Simionato Tavares , 73 9 Max Cardoso Langer a 74 10 75 11 a Universidade de Sao~ Paulo, Faculdade de Filosofia, Ci^encias e Letras de Ribeirao~ Preto, Laboratorio de Paleontologia, Av. Bandeirantes, 3900, Ribeirao~ Preto, 76 12 SP, Brazil 77 b ^ 13 Q2 Universidade Federal do Rio de Janeiro, Instituto de Geociencias, CCMN, 21.910-200 Av. Athos da Silveira Ramos 273, Rio de Janeiro, RJ, Brazil c Centro de Geoci^encias da Universidade de Coimbra, Portugal 78 14 d Museu de Paleontologia “Prof. Antonio^ Celso de Arruda Campos”, Praça do Centenario, Centro, Monte Alto, SP, Brazil 79 15 80 16 81 17 article info abstract 82 18 83 19 Article history: Baurusuchidae is one of the most diverse notosuchian groups, represented by ten formally described 84 20 Received 7 January 2021 species from the Upper Cretaceous deposits of the Bauru and Neuquen basins, respectively in Brazil and 85 21 Received in revised form Argentina. Among these, recent phylogenetic analyses placed Wargosuchus australis, Campinasuchus 86 18 July 2021 22 dinizi, and Pissarrachampsa sera within Pissarrachampsinae, whereas Baurusuchinae is composed by 87 Accepted in revised form 18 July 2021 23 Aphaurosuchus escharafacies, Aplestosuchus sordidus, Baurusuchus albertoi, Baurusuchus pachecoi, Baur- Available online xxx 88 24 usuchus salgadoensis, and Stratiotosuchus maxhechti. -
The Baurusuchidae Vs Theropoda Record in the Bauru Group (Upper Cretaceous, Brazil): a Taphonomic Perspective
Journal of Iberian Geology https://doi.org/10.1007/s41513-018-0048-4 RESEARCH PAPER The Baurusuchidae vs Theropoda record in the Bauru Group (Upper Cretaceous, Brazil): a taphonomic perspective Kamila L. N. Bandeira1 · Arthur S. Brum1 · Rodrigo V. Pêgas1 · Giovanne M. Cidade2 · Borja Holgado1 · André Cidade1 · Rafael Gomes de Souza1 Received: 31 July 2017 / Accepted: 23 January 2018 © Springer International Publishing AG, part of Springer Nature 2018 Abstract Purpose The Bauru Group is worldwide known due to its high diversity of archosaurs, especially that of Crocodyliformes. Recently, it has been suggested that the Crocodyliformes, especially the Baurusuchidae, were the top predators of the Bauru Group, based on their anatomical convergence with theropods and the dearth of those last ones in the fossil record of this geological group. Methods Here, we erect the hypothesis that assumption is taphonomically biased. For this purpose, we made a literature survey on all the published specimens of Theropoda, Baurusuchidae and Titanosauria from all geological units from the Bauru Group. Also, we gathered data from the available literature, and we classifed each fossil fnd under a taphonomic class proposed on this work. Results We show that those groups have diferent degrees of bone representativeness and diferent qualities of preservation pattern. Also, we suggest that baurusuchids lived close to or in the abundant food plains, which explains the good preserva- tion of their remains. Theropods and titanosaurs did not live in association with such environments and the quality of their preservation has thus been negatively afected. Conclusions We support the idea that the Baurusuchidae played an important role in the food chain of the ecological niches of the Late Cretaceous Bauru Group, but the possible biases in their fossil record relative to Theropoda do not support the conclusion that baurusuchids outcompeted theropods. -
First Ornithopod Remains from the Bajo De La Carpa Formation (Santonian, Upper Cretaceous), Northern Patagonia, Argentina
Cretaceous Research 83 (2018) 182e193 Contents lists available at ScienceDirect Cretaceous Research journal homepage: www.elsevier.com/locate/CretRes First ornithopod remains from the Bajo de la Carpa Formation (Santonian, Upper Cretaceous), northern Patagonia, Argentina * Penelope Cruzado-Caballero a, , Leonardo S. Filippi b, Ariel H. Mendez a, Alberto C. Garrido c, d, Ignacio Díaz-Martínez a a Instituto de Investigacion en Paleobiología y Geología (CONICET-UNRN), Av. Roca 1242, General Roca, Río Negro, Argentina b Museo Municipal Argentino Urquiza, Jujuy y Chaco s/n, Rincon de los Sauces, Neuquen, Argentina c Museo Provincial de Ciencias Naturales “Prof. Dr. Juan Olsacher”, Direccion Provincial de Minería, Etcheluz y Ejercito Argentino, Zapala, Neuquen, Argentina d Departamento Geología y Petroleo, Facultad de Ingeniería, Universidad Nacional del Comahue, Buenos Aires 1400, Neuquen, Argentina article info abstract Article history: In the last decades, the Argentinian ornithopod record has been increased with new and diverse bone Received 29 March 2017 remains found along all the Upper Cretaceous. Most of them are very incomplete and represent taxa of Received in revised form different size. As result, the studies about the palaeobiodiversity of the Ornithopoda clade in South 24 July 2017 America are complex. In this paper, new postcranial remains of an indeterminate medium-sized Accepted in revised form 30 July 2017 ornithopod from the Santonian Bajo de la Carpa Formation (Rincon de los Sauces, Neuquen province) Available online 12 August 2017 are presented. They present diagnostic features of the Ornithopoda clade, and several characters that relate them with other Argentinian ornithopods, especially with the medium-sized members of the Keywords: Ornithischia Elasmaria clade sensu Calvo et al. -
A New Species of Coloborhynchus (Pterosauria, Ornithocheiridae) from the Mid- Cretaceous of North Africa
Accepted Manuscript A new species of Coloborhynchus (Pterosauria, Ornithocheiridae) from the mid- Cretaceous of North Africa Megan L. Jacobs, David M. Martill, Nizar Ibrahim, Nick Longrich PII: S0195-6671(18)30354-9 DOI: https://doi.org/10.1016/j.cretres.2018.10.018 Reference: YCRES 3995 To appear in: Cretaceous Research Received Date: 28 August 2018 Revised Date: 18 October 2018 Accepted Date: 21 October 2018 Please cite this article as: Jacobs, M.L., Martill, D.M., Ibrahim, N., Longrich, N., A new species of Coloborhynchus (Pterosauria, Ornithocheiridae) from the mid-Cretaceous of North Africa, Cretaceous Research (2018), doi: https://doi.org/10.1016/j.cretres.2018.10.018. This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. 1 ACCEPTED MANUSCRIPT 1 A new species of Coloborhynchus (Pterosauria, Ornithocheiridae) 2 from the mid-Cretaceous of North Africa 3 Megan L. Jacobs a* , David M. Martill a, Nizar Ibrahim a** , Nick Longrich b 4 a School of Earth and Environmental Sciences, University of Portsmouth, Portsmouth PO1 3QL, UK 5 b Department of Biology and Biochemistry and Milner Centre for Evolution, University of Bath, Bath 6 BA2 7AY, UK 7 *Corresponding author. Email address : [email protected] (M.L. -
Taxonomic Reappraisal of the Sphagesaurid Crocodyliform Sphagesaurus Montealtensis from the Late Cretaceous Adamantina Formation of São Paulo State, Brazil
Zootaxa 3686 (2): 183–200 ISSN 1175-5326 (print edition) www.mapress.com/zootaxa/ Article ZOOTAXA Copyright © 2013 Magnolia Press ISSN 1175-5334 (online edition) http://dx.doi.org/10.11646/zootaxa.3686.2.4 http://zoobank.org/urn:lsid:zoobank.org:pub:9F87DAC0-E2BE-4282-A4F7-86258B0C8668 Taxonomic reappraisal of the sphagesaurid crocodyliform Sphagesaurus montealtensis from the Late Cretaceous Adamantina Formation of São Paulo State, Brazil FABIANO VIDOI IORI¹,², THIAGO DA SILVA MARINHO3, ISMAR DE SOUZA CARVALHO¹ & ANTONIO CELSO DE ARRUDA CAMPOS² 1UFRJ, Departamento de Geologia, CCMN/IGEO, Cidade Universitária – Ilha do Fundão, 21949-900. Rio de Janeiro, Brazil. E-mail: [email protected]; [email protected] 2Museu de Paleontologia “Prof. Antonio Celso de Arruda Campos”, Praça do Centenário s/n, Centro, 15910-000 – Monte Alto, Brazil 3Instituto de Ciências Exatas, Naturais e Educação (ICENE), Universidade Federal do Triângulo Mineiro (UFTM), Av. Dr. Randolfo Borges Jr. 1700 , Univerdecidade, 38064-200, Uberaba, Minas Gerais, Brasil. [email protected] Abstract Sphagesaurus montealtensis is a sphagesaurid whose original description was based on a comparison with Sphagesaurus huenei, the only species of the clade described to that date. Better preparation of the holotype and the discovery of a new specimen have allowed the review of some characteristics and the identification of several synapomorphies of S. mon- tealtensis with the genus Caipirasuchus: presence of antorbital fenestra; external nares bordered only by the premaxillae; -
Unexpected New Lizard from the Late Cretaceous of Southern South America Sheds Light on Gondwanan Squamate Diversity
Rev. Mus. Argentino Cienc. Nat., n.s. 23(1): 57-80, 2021 ISSN 1514-5158 (impresa) ISSN 1853-0400 (en línea) Unexpected new lizard from the Late Cretaceous of southern South America sheds light on Gondwanan squamate diversity Agustín G. MARTINELLI1, Federico L. AGNOLÍN2,3 & Martín D. EZCURRA1 1Sección Paleontología de Vertebrados, CONICET–Museo Argentino de Ciencias Naturales ‘Bernardino Rivadavia’, Avenida Ángel Gallardo 470, C1405DJR, CABA, Argentina. [email protected]. ar / [email protected]. 2Laboratorio de Anatomía Comparada y Evolución de los Vertebrados, CONICET–Museo Argentino de Ciencias Naturales “Bernardino Rivadavia”, Avenida Ángel Gallardo 470, C1405DJR, CABA, Argentina. [email protected]. 3Fundación de Historia Natural “Félix de Azara”, Departamento de Ciencias Naturales y Antropología. CEBBAD - Universidad Maimónides. Hidalgo 775, C1405BDB, CABA, Argentina. Abstract: The record of Cretaceous terrestrial lizards (Squamata) in South America is patchy, with seven species described from north-eastern and south-eastern Brazil, and few isolated records of iguanians and scincomorphans from the Argentinian Patagonia. Herein we describe a new genus and species of Cretaceous lizard, Paleochelco occultato gen. et sp. nov., based on a partial skull (MACN-Pv-N 120) discovered about three decades ago that was unnoticed in the Colección Paleovertebrados of the Museo Argentino de Ciencias Naturales “Bernardino Rivadavia”. It comes from rocks of the Upper Cretaceous Bajo de la Carpa Formation (Neuquén Group) exposed at the Campus of the Universidad Nacional del Comahue, north of Neuquén City (Neuquén Province). The new taxon was included into a broad phylogenetic dataset of squamates and it was recovered around the base of Polyglyphanodontia in a constrained analysis using a total-evidence backbone.