''Reynesocoeloceras'' is genus of ammonite that lived during the lower Pliensbachian stage of

early Jurassic The Early Jurassic Epoch (geology), Epoch (in chronostratigraphy corresponding to the Lower Jurassic series (stratigraphy), Series) is the earliest of three epochs of the Jurassic Period. The Early Jurassic starts immediately after the Triassic-J ...

, ammonite zones Ibex—Davoei.

Distribution

Fossils of this genus are found in Europe, North America, South America and north Africa.Paleobiology Database - Reynesocoeloceras
2017-10-16.

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.

References

Ammonitida genera Dactylioceratidae Jurassic ammonites {{Ammonitina-stub