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| Costa,Fabiana R.; Kellner,Alexander W.A.. |
| Jurassic African pterosaur remains are exceptionally rare and only known from the Tendaguru deposits, Upper Jurassic, Tanzania. Here we describe two right humeri of Tendaguru pterosaurs from the Humboldt University of Berlin: specimens MB.R. 2828 (cast MN 6661-V) and MB.R. 2833 (cast MN 6666-V). MB.R. 2828 consists of a three-dimensionally preserved proximal portion. The combination of the morphological features of the deltopectoral crest not observed in other pterosaurs suggests that this specimen belongs to a new dsungaripteroid taxon. MB.R. 2833 is nearly complete, and because of a long and round proximally placed deltopectoral crest it could be referred to the Archaeopterodactyloidea. It is the smallest pterosaur from Africa and one of the smallest... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Tendaguru; Tanzania; Africa; Upper Jurassic; Pterosauria. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652009000400017 |
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| Guinot, Daniele. |
| All Jurassic brachyuran taxa known to date are based solely upon dorsal carapaces, and only a limited number of Early and mid-Cretaceous crabs retain ventral parts. Therefore, all Jurassic taxa and many forms from the first half of the Cretaceous are carapace-based entities. All of them are considered to be "dromiaceans", podotremes to be precise. The recent discovery of an exceptionally well-preserved male crab from the Upper Cretaceous (lower Cenomanian) of Chiapas (Mexico), Archaeochiapasa tnairioqueoi Guinot, Carbot-Chanona & Vega, 2019, at first sight of a podotreme nature, has allowed a detailed description of its thoracic sternum and pleon, which revealed that it was actually a typical eubrachyuran, in need of a new family, Archaeochiapasidae... |
| Tipo: Text |
Palavras-chave: Upper Jurassic; Cretaceous; Prosopidae; Lecythocaridae; Bucculentidae; Nodoprosopidae; Glaessneropsidae; Viaiidae; Homolodromioidea; Homoloidea; Glaessneropsoidea; Goniodromitinac; Sphaerodromiinae; Eubrachyura; Callichimacroida; Podotreme; New classification. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00659/77084/78427.pdf |
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