Two 3D models of representative Strophomenata brachiopods.

Virtual Collection, Class Strophomenata

This virtual collection was last curated by Jonathan Hendricks on April 26, 2019.  Creative Commons License Each model is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License. Unless otherwise indicated, each model was created by Emily Hauf using specimens at the Paleontological Research Institution, Ithaca, New York.

Order Productida


Fossil specimen of a productid brachiopod replaced by quartz from the Permian Glass Mountains of southwest Texas (PRI 76879). From the collections of the Paleontological Research Institution. The longest dimension is 4 cm in length. Model created by Jaleigh Pier.


Family Hercosiidae

Fossil brachiopod Hercosia uddeni from the Permian Word Formation of Brewster County, Texas (PRI 45537). Specimen is preserved as a silicified replacement. Specimen is on display at the Museum of the Earth, Ithaca, New York. Specimen is several cm in length.


Fossil brachiopod Hercosia uddeni from the Permian Word Formation of Brewster County, Texas (PRI 45537). Specimen is preserved as a silicified replacement. Specimen is on display at the Museum of the Earth, Ithaca, New York. Specimen is several cm in length.


Family Productidae

Fossil brachiopod Dictyoclostus sp. from the Pennsylvanian Harpersville Fm. of Stephens County, Texas (PRI 50305). Specimen is on display at the Museum of the Earth, Ithaca, New York. Width of shell is approximately 6.5 cm.

Order Strophomenida


Family Rafinesquinidae

Fossil specimen of the brachiopod Rafinesquina alternata with the edrioasteroid Isorophus cincinnatiensis attached to its surface. Specimen is from the Ordovician of Ohio (PRI 76783). Specimen is from the collections of the Paleontological Research Institution, Ithaca, New York. Width of brachiopod is 4 cm.


Fossil specimen of the brachiopod Rafinesquina deltoidea from the Ordovician Trenton Group of Lewis County, New York (PRI 70590). The surface of this specimen is covered by an encrusting tabulate coral (perhaps Protarea). Specimen is from the research collections of the Paleontological Research Institution, Ithaca, New York. Width of specimen is approximately 5.5 cm.


Fossil specimen of the brachial valve of the brachiopod Rafinesquina ponderosa from the Ordovician McMillan Formation of Georgetown, Ohio. Specimen is from the research collections of the Paleontological Research Institution, Ithaca, New York. Width of specimen is approximately 6 cm.


Family Strophodontidae

Fossil specimen of the brachiopod Strophodonta demissa from the Devonian Silica Shale of Lucas County, Ohio (PRI 70765). Specimen is from the collections of the Paleontological Research Institution, Ithaca, New York. Longest dimension of specimen is approxiately 4 cm.