Full reference: C. R. C. Paul. 1972. Cheirocystella antiqua gen. et. sp. nov. from the Lower Ordovician of western Utah and its bearing on the evolution of the Cheirocrinidae (Rhombifera: Glyptocystitida). Brigham Young University Geology Studies 19:15-63
Parent taxon: Cheirocrinidae according to Q. Liu et al. 2024
See also Paul 1972, Paul and Rozhnov 2016, Sepkoski 2002 and Sumrall and Schumacher 2002
Sister taxa: Acanthalepis, Cheirocrinus, Cheirocystella, Coronocystis, Hadrocystis, Homocystites, Leptocystis, Sprinkleocystis
Subtaxa: Cheirocystis anatiformis Cheirocystis ardmorensis Cheirocystis fultonensis Cheirocystis liexiensis Cheirocystis radiatus
Type: Echinoencrinites anatiformis
Ecology: stationary intermediate-level epifaunal suspension feeder
Distribution:
• Chazyan of United States (1: Oklahoma collection)
• Ordovician of China (1), the Russian Federation (1), United States (7: Kentucky, New York, Oklahoma)
Total: 10 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.