''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,
and North Carolina. ''Discoscaphites'' is present in the famous Pinna Layer of the
Tinton Formation
The Tinton Formation is a geologic formation in New Jersey. It preserves fossils dating back to the Cretaceous-Paleocene periods, such as ammonites.
See also
* List of fossiliferous stratigraphic units in New Jersey
* Paleontology in New Jerse ...
of New Jersey (above the
iridium anomaly
The term iridium anomaly commonly refers to an unusual abundance of the chemical element iridium in a layer of rock strata at the Cretaceous–Paleogene (K–Pg) boundary. The unusually high concentration of a rare metal like iridium is often tak ...
), with even possible records in the layer above, along with ''Eubaculites''. 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.
References
External links
*
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-stub