Bajoprosopon piardi n. gen. and sp. from the Middle Jurassic of France, with a revised diagnosis of the family Prosopidae von Meyer, 1860 (Brachyura, Podotremata) and notes on the availability of names introduced by Hermann von Meyer (1835, 1857) n. gen. and sp. from the Middle Jurassic of France, with a revised diagnosis of the family Prosopidae von Meyer, 1860 (Brachyura, Podotremata) and notes on the availability of names introduced by Hermann von Meyer (1835, 1857)

Palaeontologia Electronica

article

Barry W.M. van Bakel¹  Lionel Maerten²  John W.M. Jagt³  René H.B. Fraaije⁴ 

[1] Utrecht University;3 Impasse du Moulin;Natuurhistorisch Museum Maastricht;Oertijdmuseum

关键词: Mesozoic;    Bajocian;    “Oolithe ferrugineuse de Bayeux“;    new taxa;    Homolodromioidea;    Calvados;    France;    crab;   

DOI  :  10.26879/1153

学科分类：社会科学、人文和艺术（综合）

来源: Palaeontologia Electronica

【 摘 要 】

The earliest known brachyurans, or true crabs, are of Early and Middle Jurassic age. In general, they are rare and known from either a single or a few specimens only. Here we record a new genus and species of homolodromioid crab of Bajocian (early Middle Jurassic) age from Calvados (northwest France), based on a unique dorsal carapace. On the basis of carapace morphology, this is here assigned to the primitive family Prosopidae, but distinguished from other members due to the carapace grooves and tubercles and conspicuously large orbital fossae.

【 授权许可】

CC BY|CC BY-NC-SA