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Boletín de la Sociedad Geológica Mexicana
versão impressa ISSN 1405-3322
Resumo
SCHWEIGERT, Günter. A new genus of prosopid crabs (Decapoda: Brachyura: Dromiacea) from the Upper Jurassic of southern Germany. Bol. Soc. Geol. Mex [online]. 2021, vol.73, n.3, 00012. Epub 31-Jan-2022. ISSN 1405-3322. https://doi.org/10.18268/bsgm2021v73n3a030121.
A new monotypic genus and species of brachyurans, Petersbuchia thauckei n. gen. n. sp., is described from southern Germany. The holotype, an incompletely preserved carapace, was collected from a thick-bedded spongiolithic limestone of the Upper Jurassic Treuchtlingen Formation (early late Kimmeridgian, Acanthicum Zone). Petersbuchia adds to the diversification hotspot of early true crabs within the sponge-microbial magnafacies along the northern shelve of the Tethys Ocean in general and to the brachyuran fauna of the Treuchtlingen Formation in special.
Palavras-chave : Homolodromioidea; diversification; Late Jurassic; palaeoecology; Treuchtlingen Formation; Bavaria; Germany.