Taffertia Explained

Taffertia is an extinct genus of cephalopod belonging to the family Hildoceratidae. These cephalopods existed in the Jurassic period, during Toarcian age in the Falciferum zone and possibly only in Exaratum subzone. Its fossils were found in Canada, Morocco, Algeria and Italy^{[1] [2]}

Description

Moderately involute, keeled, tectiform, sub-ogival shell with bold, regularly bifurcating ribs. It is similar to Pseudolioceras, but is more evolute and differs from other Harpoceratinae by having bifurcating ribs.^[3]

Notes and References

1. http://www.fossilworks.org/cgi-bin/bridge.pl?a=taxonInfo&taxon_no=15707 The Paleobiology Database
2. MOUTERDE, R.; ELMI, S. Caracteres differentiels des faunes d'Ammonites du Toarcien des bordures de la Tethys; signification paleogeographique. Bulletin de la Société géologique de France, 1991, 162.6: 1185-1195.
3. J. Guex 1973. Aperçu biostratigraphique sur le Toarcien inférieur du Moyen-Atlas marocain et discussion sur la zonation de ce sous-étage dans les séries méditerranéennes, Eclogae Geologicae Helvetiae 66 (1973) Heft 3