摘要:

ABSTRACTIn part 3, and an addendum to parts 1 and 2, 4 genera and 4 species of crinoid, and 18 morphogenera (7 new) and 87 morphospecies (81 new, including those left in open nomenclature) of pelmatozoan columnal are described. Columnals with 5-fold symmetry are a particularly common component of the Ordovician fauna of the British Isles, ranging from Arenig to Ashgill, but few taxa are widespread.

ISSN:0269-3445    

DOI:10.1080/25761900.2022.12131778

出版商:Taylor&Francis    

年代:1995

数据来源: Taylor