Where: Crawford County, Indiana (38.2° N, 86.5° W)
• Paleocoordinates: 24.7° S, 39.9° W (Wright 2013)
• coordinate estimated from map
• small collection-level geographic resolution
When: Indian Springs shale Member (Big Clifty Formation), Chesterian (335.5 - 323.2 Ma)
• Lower Chesterian
• member-level stratigraphic resolution
Environment/lithology: marine; lithified marl
Size class: macrofossils
Primary reference: D. B. Blake. 2002. Compsaster formosus Worthen & Miller (Asteroidea; Echinodermata): a Carboniferous homeomorph of post-Paleozoic Asteriidae. Paläontologische Zeitschrift 76(2):357-367 [L. Villier/L. Villier]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 26: authorized by John Alroy, entered by Mike Sommers on 20.11.1998, edited by Loic Villier
Creative Commons license: CC0 (CC0)
Taxonomic list
Asteroidea | |
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Blastoidea | |
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