The crinoid remains–fossilized in shale and in the limestone bedrock–were by then part of the vast Niagaran formation beneath the lake and most of the northeastern United States.

AT the seventh and last of the ordinary monthly meetings of the Montreal Natural History Society for the season 1870–71 a communication on a Mineral Silicate injecting Palæozoic Crinoids was ...

Crinoids, a distant ancestor of today's sea lilies.Published: 13:58 EDT, 2 May 2019 | Updated: 13:58 EDT, 2 May 2019 ...

Partial crinoids can be found throughout Des Moines County in bluffs, curbs, sidewalks and the exteriors of old limestone buildings. Complete specimens require digging.

Thomas W. Kammer, William I. Ausich, Advanced Cladid Crinoids from the Middle Mississippian of the East-Central United States: Primitive-Grade Calyces, Journal of Paleontology, Vol. 66, No. 3 (May, ...

Crinoid skeletal fragments make up a significant portion of Iowa's limestone deposits. This limestone is used for road base, as agricultural lime, as building stone, and a component of concrete.

Apektocrinus ubaghsi new genus and species is a monospecific taxon assigned to the new family Apektocrinidae based on additional preparation of a single previously studied specimen. Apektocrinus is ...

News Published: 07 February 1942 PERMIAN FOSSILS FROM THE EASTERN HIMALAYA* L. R. WAGER Nature 149, 172–173 (1942) Cite this article ...

Object Details Author Ausich, William I (William Irl) 1952- Webster, G. D (Gary D.) 1934- Contents Taphonomy as an indicator of behavior among fossil crinoids / Tomasz K. Baumiller ... [et al.] -- ...