Hercosestria

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Hercosestria
Temporal range: Kungurian-Roadian
Hercosestria040111.jpg
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

Hercosestria is an extinct genus of brachiopod 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).

References[edit]

  1. ^ Paleobiology Database. "Hercosestria cribrosa". Retrieved 11 January 2012. 
  2. ^ Weidlich, O. (2002). "Permian reefs re-examined: extrinsic control mechanisms of gradual and abrupt changes during 40 my of reef evolution". Geobios 35 (Supplement 1): 287–294. doi:10.1016/s0016-6995(02)00066-9. 
  3. ^ Cooper, R.E.; Grant (1969). "New Permian brachiopods from west Texas". Smithsonian Contributions to Paleobiology 1: 1–20. doi:10.5479/si.00810266.1.1.