Home
Help
Print...
TaxNo: 1596Irdanites leptum
Suborder: Agoniatitina
Superfamily: Mimoceratoidea
Family: Teicherticeratidae
Subfamily: Palaeogoniatitinae
Genus: Irdanites
Species: leptum
Qualifier: ss
Author: Ruan 1981,p.28
Lower Boundary: CNG Tangdin Fm. base, 406.4 million years
Upper Boundary: CNG Tangdin Fm.--Lower Tangxiang Fm., 405.8 million years