Blake, D. B. (1988). A first fossil member of the Ctenodiscidae. Journal of Paleontology. 62(4): 626-631.

47534

Blake, D. B.

1988

62(4): 626-631

Publication

https://www.jstor.org/stable/1305466?seq=1#metadata_info_tab_contents

Paleoctenodiscus campaniurnis, a new species and genus assigned to the Ctenodiscidae, is based on a single specimen collected from beneath a turbidite flow from the Cretaceous (Campanian) of Baja California. Modern ctenodiscids are sediment feeders that spend much of their lives beneath the surface; Paleoctenodiscus also was a sediment feeder, but it lived only partially buried. The occurrence establishes a minimal geologic age for the evolution of cribriform organs. A scenario for the evolution of sediment ingestion in asteroids is suggested.

Paleontology, Fossils, Paleobiology

Asteroidea

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