Home
Help
Print...
TaxNo: 4054Hyattoceras compressum
Suborder: Goniatitina
Superfamily: Marathonitoidea
Family: Hyattoceratidae
Genus: Hyattoceras
Species: compressum
Qualifier: ss
Author: Liang 1981,p.496
Lower Boundary: Sakmarian--Artinskian [SAK--ART], 284.4 million years
Upper Boundary: Kungurian/Leonardian--Roadian [KUN--ROA], 270.6 million years