Biology:Discoscaphites

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Short description: Genus of molluscs (fossil)

Discoscaphites
Temporal range:
Campanian to Danian
DiscoscaphitesirisCretaceous.jpg
Discoscaphites iris,
Owl Creek Formation (Upper Cretaceous), Ripley, Mississippi.
Scientific classification e
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Cephalopoda
Subclass: Ammonoidea
Order: Ammonitida
Suborder: Ancyloceratina
Family: Scaphitidae
Subfamily: Scaphitinae
Genus: Discoscaphites
Meek, 1870
Species[1]
  • D. conradi
  • D. gulosus
  • D. rossi

Discoscaphites is an extinct genus of ammonite. This genus may have been one of the few to have briefly survived the K-Pg mass extinction.

Distributions

Cretaceous of Greenland, Alabama, Arkansas, California, Colorado, Kansas, Maryland, Mississippi, Missouri, New Jersey, South Dakota, Tennessee, Texas, Wyoming,[1] and North Carolina.[2] Discoscaphites is present in the famous Pinna Layer of the Tinton Formation of New Jersey (above the iridium anomaly), with even possible records in the layer above, along with Eubaculites.[3] Some researchers prefer a conservative interpretation when dating the Pinna Layer, the other remains still suggest Discoscaphites was a K-Pg survivor, albeit restricted to 65 Ma.[4]

References

  1. 1.0 1.1 "Paleobiology Database - Discoscaphites". http://www.fossilworks.org/cgi-bin/bridge.pl?a=taxonInfo&taxon_no=14786. 
  2. Chandler and Timmerman, Richard and John (2014). Fossil Mollusks - Volume II of IV. North Carolina: North Carolina Fossil Club. pp. 20. http://www.ncfossilclub.org/node/8. Retrieved 2016-05-16. 
  3. Landman, Neil H.; Garb, Matthew P.; Rovelli, Remy; Ebel, Denton S.; Edwards, Lucy E. (December 2012). "Short-Term Survival of Ammonites in New Jersey After the End-Cretaceous Bolide Impact" (in en). Acta Palaeontologica Polonica 57 (4): 703–715. doi:10.4202/app.2011.0068. ISSN 0567-7920. 
  4. Landman, Neil H.; Goolaerts, Stijn; Jagt, John W.M.; Jagt-Yazykova, Elena A.; Machalski, Marcin (2015), Klug, Christian; Korn, Dieter; De Baets, Kenneth et al., eds., "Ammonites on the Brink of Extinction: Diversity, Abundance, and Ecology of the Order Ammonoidea at the Cretaceous/Paleogene (K/Pg) Boundary" (in en), Ammonoid Paleobiology: From macroevolution to paleogeography (Dordrecht: Springer Netherlands) 44: pp. 497–553, doi:10.1007/978-94-017-9633-0_19, ISBN 978-94-017-9632-3, http://link.springer.com/10.1007/978-94-017-9633-0_19, retrieved 2021-10-27 

External links

Wikidata ☰ Q5281708 entry