Order
Tetragonocrinidae Stukalina, 1980
Selection of related publications
Rozhnov, S. V. 1988. Morfologiâ i sistematičeskoe položenie nižneordovikskih morskih lilij. Paleontologicheski Zhurnal 2, 67-79.
Yeltyscheva, R. S. (Yeltyschewa, R. S.) 1964. Stebli ordovikskih morskih lilij Pribaltiki (nižnij ordovik). Voprosy paleontologii IV, 59-82. Izdatel'stvo Leningradskogo Universiteta.
List of species
1. Tetragonocrinus pygmaeus (Eichwald, 1860) | Lower Ordovician
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Klassificering
Organism group | Biota |
Kingdom | Animalia |
Phylum | Echinodermata |
Subphylum | Pelmatozoa |
Class | Crinoidea |
Superclass | Pentacrinoidea |
Infraclass | Inadunata |
Parvclass | Disparida |
Order | Calceocrinida |
Eustenocrinida | |
Maennilicrinida | |
Myelodactylida | |
Pisocrinida | |
Tetragonocrinidae | |
Genus | Tetragonocrinus |
Family | Homocrinidae |
Perittocrinidae |