An unusual new asteriid (Echinodermata: Asteroidea) from the Cretaceous of California

D. B. Blake, D. O. Peterson

Research output: Contribution to journalArticle

Abstract

Pegaster stichos n.gen. and sp., from the Cretaceous Chico Formation of Northern California, is the first-known fossil representative of the hitherto monogeneric Neomorphasterinae (Asteroidea: Asteriidae). Pegaster is morphologically similar to living Neomorphaster, again demonstrating the conservative evolution noted elsewhere among asteroids. Pegaster probably lived in a shallow shelf environment subject to strong storm action whereas Neomorphaster is known only from considerably greater depths; Pegaster provides a new example of an asteroid taxon excluded from shallower habitats through time. -Authors

Original languageEnglish (US)
Pages (from-to)586-589
Number of pages4
JournalJournal of Paleontology
Volume67
Issue number4
DOIs
StatePublished - Jan 1 1993

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ASJC Scopus subject areas

  • Palaeontology

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