Cystoblastus and the origin of the Hemicosmitoida (Echinodermata: Blastozoa)

All previous descriptions and interpretations of thecal plating in Cystoblastus Volborth depict a closed infralateral circlet, whereas actual specimens have that plate circlet open in three places. Cystoblastus is redescribed using Estonian specimens. It has a blastoid-like theca composed of a pelvi...

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Bibliographic Details
Main Authors: Christopher R. C. Paul, Ursula Toom
Format: Article
Language:English
Published: Estonian Academy Publishers 2021-08-01
Series:Estonian Journal of Earth Sciences
Subjects:
Online Access:https://kirj.ee/wp-content/plugins/kirj/pub/earth-3-2021-165-181_20210812152141.pdf