The complex morphology of a new lower silurian asteroid (Echinodermata)

Daniel B. Blake, Frank R. Ettensohn

Research output: Contribution to journalArticlepeer-review

Abstract

Gordonaster brassfieldensis is a new genus and species of Asteroidea (Echinodermata) described from the Lower Silurian Brassfield Formation of east-central Kentucky. Tentatively assigned to the poorly understood Palaeasteridae, Gordonaster shares much with Ordovician asteroids, yet it also exhibits apparent homoplasies that presage the post-Paleozoic crown group. Available specimens also indicate that the ontogenetic pattern of ossicular addition seen in the crown group was established during the Paleozoic.

Original languageEnglish (US)
Pages (from-to)63-69
Number of pages7
JournalJournal of Paleontology
Volume83
Issue number1
DOIs
StatePublished - Jan 1 2009

ASJC Scopus subject areas

  • Palaeontology

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