Hercosestria Explained

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).

Notes and References

  1. Web site: Paleobiology Database. Hercosestria cribrosa. 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. 10.1016/s0016-6995(02)00066-9. 2002Geobi..35..287W.
  3. Cooper. G.A.. Grant. R.E.. 1969. New Permian brachiopods from west Texas. Smithsonian Contributions to Paleobiology. 1. 1–20. 10.5479/si.00810266.1.1.

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