Discoscaphites
Discoscaphites Temporal range: Campanian to Danian
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Discoscaphites iris, Owl Creek Formation (Upper Cretaceous), Ripley, Mississippi. | |
Scientific classification | |
Kingdom: | Animalia |
Phylum: | Mollusca |
Class: | Cephalopoda |
Subclass: | †Ammonoidea |
Order: | †Ammonitida |
Suborder: | †Ancyloceratina |
Family: | †Scaphitidae |
Subfamily: | † |
Genus: | †Discoscaphites Meek, 1870 |
Species[1] | |
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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.
Distribution[]
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] Although 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 65Ma.[4]
References[]
- ^ a b "Paleobiology Database - Discoscaphites". Retrieved 17 December 2021.
- ^ Chandler and Timmerman, Richard and John (2014). Fossil Mollusks - Volume II of IV. North Carolina: North Carolina Fossil Club. p. 20.
- ^ 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". Acta Palaeontologica Polonica. 57 (4): 703–715. doi:10.4202/app.2011.0068. ISSN 0567-7920.
- ^ Landman, Neil H.; Goolaerts, Stijn; Jagt, John W.M.; Jagt-Yazykova, Elena A.; Machalski, Marcin (2015), Klug, Christian; Korn, Dieter; De Baets, Kenneth; Kruta, Isabelle (eds.), "Ammonites on the Brink of Extinction: Diversity, Abundance, and Ecology of the Order Ammonoidea at the Cretaceous/Paleogene (K/Pg) Boundary", 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, retrieved 2021-10-27
External links[]
- "Spectacularly Blood Red Discoscaphites Fox Hills Ammonite". The Virtual Fossil Museum. Retrieved 2009-02-02.
Categories:
- Scaphitidae
- Ammonitida genera
- Cretaceous ammonites
- Late Cretaceous ammonites of North America
- Campanian genus first appearances
- Maastrichtian genus extinctions
- Cretaceous United States
- Maastrichtian life
- Hell Creek fauna
- Fossil taxa described in 1870
- Ammonitida stubs