Taouzitidae Korn, 2001

Korn, Dieter & Bockwinkel, Jürgen, 2022, The early gephuroceratid ammonoids from the Roteisenstein Formation of Dillenburg (Cephalopoda, Ammonoidea), European Journal of Taxonomy 823, pp. 10-47 : 29

Family Taouzitidae Korn, 2001

Diagnosis

Gephuroceratoidea with sutural formula (E 2 E 1 E 2) L U 2: U 3 U 1 I to (E 2 E 1 E 2) L U 2 U 4 U 6 U 8: U 7 U 5 U 3 U 1 I; lateral saddle narrow, rounded; lateral lobe simple, rounded or acute.

Included genera

Mzerrebites Becker & House, 1994 ; Darkaoceras Bockwinkel, Becker & Ebbighausen, 2009 ; Keuppites Bockwinkel, Becker & Ebbighausen, 2009 ; Taouzites Korn, 2001 .

Remarks

The lineage of the family Taouzitidae partly resembles the morphological evolution of two Frasnian lineages of gephuroceratids, the koenenitids and the beloceratoids (e.g., Korn 2001). However, the major difference between the taouzitids and the beloceratids is that in the taouzitids the external lobe retained its original shape, whereas in the beloceratids there was a proliferation of both the umbilical lobes and the external lobes. In the koenenitids, the external lobe remained tripartite and there was the development of only three umbilical lobes in the terminal genus Timanites .