Hercosestria

Hercosestria is an extinct genus of brachiopods from the Lower and Middle Permian.^[1] They were important reef-forming organisms because of their conical shapes, attaching spines, and gregarious habits.^[2] It is related to Richthofenia.^[3] Species of the genus have been found in Texas (H. cribrosa and H. laevis) and Guatemala (H. notialis).

Hercosestria Temporal range: Kungurian-Roadian PreꞒ Ꞓ O S D C P T J K Pg N
Hercosestria cribrosa (multiple individuals)
Scientific classification
Kingdom:	Animalia
Phylum:	Brachiopoda
Class:	Strophomenata
Order:	Productida
Family:	Hercosiidae
Genus:	Hercosestria Cooper & Grant, 1969
Species
H. cribrosa Cooper and Grant, 1969 type H. laevis Cooper and Grant, 1975 H. notialis Stehli and Grant, 1970