Phyllopachyceras

{{Automatic taxobox

| fossil_range = Cretaceous, {{fossil range|145.5|70.6}}[https://www.fossilworks.org The Paleobiology Database]

| image = Phylloceratidae - Phyllopachyceras infundibulum.JPG

| image_caption = Fossil shells of Phyllopachyceras infundibulum from Alpes-de-Haute-Provence, on display at Galerie de paléontologie et d'anatomie comparée in Paris

| taxon = Phyllopachyceras

| authority = Spath, 1925

}}

Phyllopachyceras is an extinct genus of ammonoid cephalopods belonging to the family Phylloceratidae. These nektonic carnivores lived in the Cretaceous, from Hauterivian to Maastrichtian to age.Sepkoski, Jack [http://strata.geology.wisc.edu/jack/showgenera.php?taxon=231&rank=class Sepkoski's Online Genus Database – Cephalopoda]

Species

Phyllopachyceras chitianum Imlay, 1960
Phyllopachyceras infundibulum d'Orbigny, 1841
Phyllopachyceras reymenti Riccardi, 2018
Phyllopachyceras trinitense Anderson, 1938
Phyllopachyceras umpuanum Anderson, 1938

Description

Shells of Phyllopachyceras can reach a diameter of about {{convert|4.5|cm}}. On the external surface ribs are alternately short and long and sutures show a high complexity, with saddle endings perfectly quadruple (tetraphillic). The section of the shell is quite thick.{{cite web|url=http://www.ammonites.fr/Fiches/0269.htm|title=Phyllopachyceras ezoense|website=Ammonites|archive-url=https://web.archive.org/web/20191113234729/http://www.ammonites.fr/Fiches/0269.htm|archive-date=November 13, 2019|url-status=dead}}

Distribution

Fossils of species within this genus have been found in the Cretaceous of Antarctica, Argentina, Austria, China, France, Hungary, Italy, Japan, Madagascar, New Zealand, Poland, Russia, Spain, Ukraine and United States.

Phyllopachyceras

Species

Description

Distribution

References

Further reading