Morphology and ecology of the bradoriid arthropods Spinospitella and Nikolarites from the Cambrian (Series 2, Stage 4) of North Greenland (Laurentia)

Tuberculate fragments referred to Nikolarites spasskyi are compared with a complete carapace and other material of Spinospitella from Cambrian Series 2, Stage 4 in North Greenland. The descriptions expand earlier brief records from Laurentia of the two bradoriids, originally described from Siberia a...

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Bibliographic Details
Published in:PalZ
Main Authors: Peel, John S., Skovsted, Christian, Wallet, Elise
Format: Article in Journal/Newspaper
Language:English
Published: Naturhistoriska riksmuseet, Enheten för paleobiologi 2021
Subjects:
Online Access:http://urn.kb.se/resolve?urn=urn:nbn:se:nrm:diva-4324
https://doi.org/10.1007/s12542-021-00569-4
Description
Summary:Tuberculate fragments referred to Nikolarites spasskyi are compared with a complete carapace and other material of Spinospitella from Cambrian Series 2, Stage 4 in North Greenland. The descriptions expand earlier brief records from Laurentia of the two bradoriids, originally described from Siberia and Australia, respectively. The mutually exclusive occurrences of the two taxa indicate ecological control of their distribution in North Greenland. Robust fragments of Nikolarites spasskyi occur in reworked higher energy deposits of the Aftenstjernesø Formation, while thin-walled carapaces of Spinospitella characterise deeper water mudstones within the Buen and Aftenstjernesø formations. Open access funding provided by Uppsala University