Mollusc fauna of the Early Cambrian Bastion Formation of North-East Greenland

Bulletin of the Geological Society of Denmark

Federov, P. 2003–04–30¹ 

[1] Lower Ordovician mud mounds from the St. Petersburg region, northwestern Russia. Bulletin of the Geological Society of Denmark 50, pp. 125–137. Copenhagen.

关键词: Mud mounds;    sponges;    facies;    Ordovician;    Russia.;   

学科分类：地球科学(综合)

来源: Dansk Geologisk Forening

【 摘 要 】

A diverse mollusc fauna from the Bastion Formation (Early Cambrian, middle Dyeran Stage) of North-East Greenland includes fifteen species (thirteen helcionelloids and two bivalves), adding considerable detail to the known fossil record of Early Cambrian molluscs from Laurentia. The occurrence of secondarily phosphatized shell surfaces together with phosphatic internal moulds in acid resistant residues allows new morphological details to be observed in several taxa. The fauna shows affinity to contemporaneous faunas from the Taconic allochthon of the eastern United States, but also to mollusc faunas of South Australia, China and Europe. The following new helcionelloid taxa are described: Capitoconus inclinatus n. gen. and n. sp. Capitoconus artus n. sp., Figurina groenlandica n. sp. and Latouchella ostenfeldense n. sp.

【 授权许可】

Unknown