Parapopanoceras

Phylum:Mollusca

Class:Cephalopoda

Subclass:†Ammonoidea

Order:†Ceratitida

Parapopanoceras Temporal range: Anisian[1] PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Cephalopoda
Subclass:	†Ammonoidea
Order:	†Ceratitida
Family:	†Parapopanoceratidae
Genus:	†Parapopanoceras Haug, 1894
Species[2]
Parapopanoceras asseretoi Parapopanoceras dzeginense Parapopanoceras inconstans Parapopanoceras malmgreni Parapopanoceras paniculatum Parapopanoceras torelli Parapopanoceras wapii
Synonyms
Dienerites Mojsisovics, 1902

Parapopanoceras is a ceratitid ammonite with a small, smooth, very involute and moderately globose shell that lived during the middle Triassic.

Parapopanoceras normally has 6 to 7 whorls in its phragmocone, seldom as much as nine, with a body chamber 1-1.5 whorls in length. The suture is ceratitic with phylloid (leaf-like) saddles and subdivided lobes. The siphuncle begins at a central or subcentral position and in most species becomes ventral at the end of the second whorl. In all species septal nacks are short retrochoanitic (point adapically) in the first whorl, are transitory in the second whorl, and become prochoanitic (point adorally) in the third whorl and thereafter. Closely related Stenopopanoceras differs in that its siphuncle starts off ventral.

Parapopanoceras was named by Haug in 1994. The type species is Popanoceras verneuili Mojsisovics 1886. Related genera include Amphipopanoceras and Stenopopanoceras.