Edrioasteroidea

Carneyella ulrichi, edrioasteroid of the Upper Ordovician

Taxonavigation

Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Echinodermata
Subphylum: Pelmatozoa
Classis: †Edrioasteroidea
Ordines: †Cyathocystida – †Edrioasterida – †Edrioblastoida – †Isorophida – †Stromatocystitida
Familiae: †Cyathothecidae – †Hemicystitidae – †Pyrgocystidae
Genera: †Aragocystites – (?)†Arkarua – †Kailidiscus

Uncertainties

The subphylum of edrioasteroids is uncertain. Some claim it to be "pelmatozoan," and others claim it echinozoan. It could also be a stem group from which the later subphyla evolved from.

Name

Edrioasteroidea Billings, 1858

References

• Sumrall C.D., 1993. Thecal designs in isorophinid edrioasteroids. Lethaia, vol. 26, no 4,‎ p. 289-302, DOI: 10.1111/j.1502-3931.1993.tb01534.x.
• Sumrall C.D., 1996. Late Paleozoic edrioasteroids (Echinodermata) from the North American Midcontinent. Journal of Paleontology, vol. 70, no 6, p. 969-985.

Links

• Edrioasteroidea – Taxon details on Paleobiology Database.
• https://www.bilibili.com/read/cv17622994?spm_id_from=333.999.0.0

Vernacular names

English: Edrioasteroidea
français: Édrioastéroïdes
中文: 海座星纲