Pentacrinites
Extinct genus of crinoids / From Wikipedia, the free encyclopedia
Dear Wikiwand AI, let's keep it short by simply answering these key questions:
Can you list the top facts and stats about Pentacrinites?
Summarize this article for a 10 year old
SHOW ALL QUESTIONS
Pentacrinites is an extinct genus of crinoids that lived from the Hettangian to the Bathonian of Asia, Europe, North America, and New Zealand. Their stems are pentagonal to star-shaped in cross-section and are the most commonly preserved parts.[1] Pentacrinites are commonly found in the Pentacrinites Bed of the Early Jurassic (Lower Lias) of Lyme Regis, Dorset, England.[2] Pentacrinites can be recognized by the extensions (or cirri) all around the stem, which are long, unbranching, and of increasing length further down, the very small cup and 5 long freely branching arms.[3]
Quick Facts Scientific classification, Species ...
Pentacrinites | |
---|---|
A drawing of Pentacrinites | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Echinodermata |
Class: | Crinoidea |
Order: | Isocrinida |
Family: | †Pentacrinitidae |
Genus: | †Pentacrinites Blumenbach, 1804 |
Species | |
Close