Reynesocoeloceras

Reynesocoeloceras is genus of ammonite that lived during the lower Pliensbachian stage of early Jurassic, ammonite zones Ibex—Davoei.

Reynesocoeloceras Temporal range: Pliensbachian PreꞒ Ꞓ O S D C P T J K Pg N [1][2]
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Cephalopoda
Subclass:	†Ammonoidea
Order:	†Ammonitida
Family:	†Dactylioceratidae
Subfamily:	†Reynesocoeloceratinae
Genus:	†Reynesocoeloceras Géczy, 1976
Type species
Ammonites (Stephanoceras) crassus Young & Bird, 1828 var. indunense Meneghini, 1874
Species[3]
R. indunense Meneghini, 1874 R. levicosta Fucinii, 1905 R. corvalani Caruthers et al., 2018 R. elmii Dommergues et al., 2011 R. fallax Fucini, 1905 R. grahami Smith and Tipper, 1996 R. incertum Fucini 1905 R. obesum Fucini, 1905 R. praeincertum Dommergues and Mouterde, 1982 R. simulans Fucini, 1905
Synonyms
Indunoceras Wiedenmayer, 1977

Distribution

Fossils of this genus are found in Europe, North America, South America and north Africa.^[1][3]

Description

Shells of ammonites belonging to this genera had evolute cadicone whorls with depressed section. Venter has been flat. Ribs were usually single. On the ventrolateral tubercules, which could have been small, or even large, there might have been bifurcation of ribs.^[1]