Progeronia
{{Short description|Genus of molluscs (fossil)}}
{{Taxobox
| name = Progeronia
| image = Perisphinctidae - Progeronia lictor.JPG
| image_width = 250px
| image_caption = Progeronia lictor from Tulear (Madagascar), Kimmeridgian stage
| fossil_range = {{fossil range|155.7|150.8|Jurassic}}
| regnum = Animalia
| phylum = Mollusca
| classis = Cephalopoda
| subclassis = Ammonoidea
| familia = Perisphinctidae
| genus = Progeronia
| genus_authority = (Arkell 1953)
}}
Progeronia is a genus of ammonites belonging to the family Perisphinctidae.[http://corbieres-fossiles.pagesperso-orange.fr/Page%20kimm%E9ridgien%20gardois%202.htm Corbieres Fossiles]
These fast-moving nektonic carnivores lived in the Jurassic period, from 155.7 to 150.8 Ma.[https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=15457 Fossilworks]
Species
- Progeronia breviceps
- Progeronia lictor
- Progeronia polyplocoides
Description
Shells of Progeronia species can reach a diameter of {{convert|6|-|23|mm}}. These large shell are large and involute, with a bifurcated or trifurcated ribs.
Distribution
References
{{Reflist}}
External links
- [http://jsdammonites.fr/1249.html Jsd Ammonites]
{{Taxonbar|from=Q20721487}}
{{ammonitina-stub}}