Illusioluidia teneryi n.gen. and sp. (Asteroidea: Echinodermata) from the Pennsylvanian of Texas, and its homeomorphy with the extant genus Luidia Forbes

D. B. Blake, T. E. Guensburg

Research output: Contribution to journalArticle

Abstract

Illusioluidia teneryi is a new genus and species of asteroid echinoderm described from the Missourian (Upper Pennsylvanian) Wolf Mountain Shale of Texas, Illusioluidia is important because it is strongly homeomorphic with modern Luidia; Luidia has been considered primitive among living asteroids by some authors. Illusioluidia, however, is not ancestral to Luidia or any other modern genus; similarities are convergent. Luidia is a predator, largely on active invertebrates (other echinoderms, mollusks), whereas Illusioluidia is inferred to have been a small-particle feeder. Homeomorphy reflects neither descent not feeding habits; environmental controls are suggested. -Authors

Original languageEnglish (US)
Pages (from-to)662-668
Number of pages7
JournalJournal of Paleontology
Volume63
Issue number5
DOIs
StatePublished - Jan 1 1989

ASJC Scopus subject areas

  • Palaeontology

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