Playdellia sp 1.jpg

Pleydellia sp. Ammonite

Bajocian, Morocco
Jurassic period ( 201.3 -145 million years ago)
Hildoceratidae is a family of ammonoid cephalopods from the Lower Jurassic, lower Pliensbachian (Jamesoni zone) to lower Bajocian (maybe even upper Bajocian) substages, generally with strongly ribbed, involute shells. They are combined with the Hammatoceratidae (= Phymatoceratidae), Graphoceratidae, and Sonniniidae to make up the Hildoceratoidea.
Kingdom: Animalia
Pylum: Mollusca
Class: Cephalopoda
Order: †Ammonitida
Family: †Hildoceratidae
Genus: †Pleydellia