Skip to Main Content
Atlas
All Species
Geology
Echinodermata
Echinoidea
Spatangoida
Hemiasteridae
Hemiaster
Hemiaster calvini
Hemiaster calvini
Phylum:
Echinodermata
Class:
Echinoidea
Order:
Spatangoida
Family:
Hemiasteridae
Genus:
Hemiaster
Species:
Hemiaster calvini
Clark
Information
Images
Maps
Geological Range
Albian to Cenomanian
Paleogeographic Distribution
Texas
Stratigraphic Occurrences
Cenomanian
Grayson Marl (TX)
Albian
Denison Formation (TX)
Grayson Marl (TX)
Pawpaw (TX)
Unknown Stage
Buda Limestone (TX)
Del Rio Formation (TX)
Georgetown Formation (TX)
Grayson Marl (TX)
Hemiaster calvini
from the Late Cretaceous Grayson Marl Fm. of Bell County, Texas (BEG 21268).
Hemiaster calvini
from the Late Cretaceous Grayson Marl Fm. of Denton County, Texas (BEG 21487).
Hemiaster calvini
from the Late Cretaceous Buda Limestone Fm. of Travis County, Texas (UT 14133).
Hemiaster calvini
from the Late Cretaceous Buda Limestone Fm. of Travis County, Texas (UT 39042).
Stratigraphic position unknown