Leiorhynchus
Temporal range: Devonian-Mississippian
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Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Brachiopoda
Class: Rhynchonellata
Order: Rhynchonellida
Family: †Leiorhynchidae
Subfamily: †Leiorhynchinae
Genus: †Leiorhynchus
Hall 1860
Species

See text

Leiorhynchus is an extinct genus of brachiopod belonging to the order Rhynchonellida and family Leiorhynchidae.[1] Specimens have been found in South America,[2] North America, and Russia[3] in beds of middle Devonian[4] to Mississippian[3] age (372 to 325 million years old).[5] The genus may have been adapted to dysaerobic environments, colonizing areas of reduced oxygen concentrations rich in organic matter.[6] The genus has been used as an index fossil in North America.[7]

Species

  • L. carboniferum[5]
  • L. castanea Meek 1868[8]
  • L. hippocastanea Crickmay 1960[8]
  • L. kelloggi Hall 1867[9]
  • L. mesacostale Hall 1843[8]
  • L. miriam Johnson 1971[4]
  • L. quadracostatus Vanuxem 1842[3]
  • L. ripheicus Stepanov 1948[10]
  • L. rockymontanum Marcou 1858[2]

References

  1. ↑ Williams, A.; Brunton, C. H. C.; Carlson, S. J.; Alvarez, F.; Blodgett, R. B.; Boucot, A. J.; Copper, P.; Dagys, A. S.; Grant, R. E.; Jin, Y.-G.; MacKinnon, D. I.; Mancenido, M. O.; Owen, E. F.; Rong, J.-Y.; Savage, N. M.; Sun, D.-L. (2002). Treatise on Invertebrate Paleontology H: Brachiopoda. Vol. 4. pp. 921–1688.
  2. 1 2 Chronic, J. (1953). "Part II, Invertebrate paleontology (excepting fusulinids and corals), in Upper Paleozoic of Peru". Geological Society of America Memoir. 58: 43–165.
  3. 1 2 3 Sartenaer, Paul (1961). "Redescription of Leiorhynchus quadracostatus (Vanuxem), Type Species of Leiorhynchus Hall, 1860 (Rhynchonellacea)". Journal of Paleontology. 35 (5): 963–976. JSTOR 1301183.
  4. 1 2 Johnson, J. G. (1971). "Lower Givetian brachiopods from Central Nevada". Journal of Paleontology. 45 (2): 301–326.
  5. 1 2 Laudon, L.R.; Chronic, B.J. Jr. (1947). "Mississippian Rocks of Meramec Age Along Alcan Highway, Northern British Columbia". AAPG Bulletin. 31: 1608–1618. doi:10.1306/3D933A37-16B1-11D7-8645000102C1865D.
  6. ↑ Thompson, Joel B.; Newton, Cathryn R. (1987). "Ecological Reinterpretation of the Dysaerobic Leiorhynchus Fauna: Upper Devonian Geneseo Black Shale, Central New York". PALAIOS. 2 (3): 274. Bibcode:1987Palai...2..274T. doi:10.2307/3514677. JSTOR 3514677.
  7. ↑ Sartenaer, Paul (1994). "Two new North American Givetian Rhynchonellid (Brachiopod) zones". Annales de la Société géologique de Belgique. 117 (1): 245–257. Retrieved 11 January 2022.
  8. 1 2 3 Johnson, J. G. (1970). "Taghanic Onlap and the End of North American Devonian Provinciality". Geological Society of America Bulletin. 81 (7): 2077. Bibcode:1970GSAB...81.2077J. doi:10.1130/0016-7606(1970)81[2077:TOATEO]2.0.CO;2.
  9. ↑ Driscoll, Egbert G.; Hall, Donald D.; Nussmann, David G. (1965). "Morphology and Paleoecology of the Brachiopod Leiorhynchus kelloggi Hall, Middle Devonian, Ohio, Michigan, Ontario". Journal of Paleontology. 39 (5): 916–933. JSTOR 3555313.
  10. ↑ Ustritsky, V. I.; Chernyak, G. E. (1963). "Biostratigrafiya i Brakhiopody Verknego Paleozoya Taimyra [Biostratigraphy and Brachiopods of the upper Paleozoic of Taimyr]". Trudy Nauchno-Issledoratel'skogo Instituta Geologii Arktiki. 134: 1–139.


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