|Isocrinid stalked crinoids from the Mariana Arc in the tropical Pacific.via NOAA|
So, the other day someone complained to me that the Echinoblog didn't do enough with fossils. So, this week FOSSIL CRINOIDS to the MAX!
The fossils below look like the ones above..kinda. Isocrinids? from the Jurassic. Image by Kevin Zim.
Some nice crinoids from the Houston Museum of Natural Science. Not sure which species. Images by malts8
These are the crinoid Jimbacrinus bostocki from the Permian of Australia. More info at the Museum Victoria page here. Images by malts8
An awesome rhombiferan (Caryocrinities ornatus)-not quite a crinoid-but something closely related. Another image by malts8
Pentacrinus (Mesozoic to Cenozoic) Image by fa11ing_away
A nice Seirocrinus subangilaris from the Jurassic Poseidonia slate of Germany. Image by Zoltan.sylvester
Phanocrinus formosas and Tholocrinus spinosus from the Mississippian-Glen Dean Formation in Grayson Co. KY. Image by malts8
Cool looking Zeacrinites magnoliaeformis fr. the Mississippian-glen Dean Formation in Grayson Co., YI. Image by malts8
Onychocrinus exsculptus. Mississippian? (Paleozoic) Image From the Houston Museum of Natural Science
More from the Mississippian! Talarocrinus planus. Image by G.S. Springer
From the Mississippian of Iowa. Dichocrinus inornatus, and Rhodocrinites kirbyi. These fossil pics from Piedmont Fossil- The Iowa Historical Museum
some nice fossiliferous limestone
A veritable FOREST of crinoids! Rhodocrinites kirbyi, Dichocrinus inornatus, Pachylocrinus globosus, and Rhodocrinus nanus along with unidentified brachiopod and bryozoan.
Agaricocrinus splendens from the Mississippian
Onychocrinus exculptus from the Mississippian of Crawfordsville Indiana
So, remember awhile back when I wrote this controversial post about swimming/floating crinoids?? There was this diagram that had been presented about how this one crinoid, Scyphocrinites enjoyed a pelagic type lifestyle with a positively buoyant "float"
In this case, from Camarocrinus ulrichi. Images by malts8
They are sometimes abundant in the field!