Tanidromites maerteni, Fraaije & Van Bakel & Guinot & Jagt, 2023

Fraaije, René H. B., Van Bakel, Barry W. M., Guinot, Danièle & Jagt, John W. M., 2023, Validation of Tanidromites maerteni Fraaije, Van Bakel, Guinot & Jagt, a species of crab (Crustacea, Decapoda, Brachyura) from Middle Jurassic (Bajocian) deposits of Maizet, Calvados, northwest France, Zootaxa 5318 (3), pp. 437-438 : 437

Tanidromites maerteni sp. nov.

urn:lsid:zoobank.org:act:6AF2E747-B3FE-4417-A4D9-3B94B2A5693A

Tanidromites maerteni Fraaije, Van Bakel, Guinot & Jagt, 2013: 250 , fig. 1 [unavailable].

Type material. The holotype, MNHN.F.A47612 (leg. L. Maerten), is deposited in the collections of the Muséum National d’Histoire Naturelle, Département Histoire de la Terre (Paris). The type specimen originates from the town quarry of the Commune de Maizet , Calvados (northwest France) from a level which is locally referred to as the “Oolithes ferrugineuses de Bayeux”, the age of which is early late Bajocian (Niortense ammonite Zone) ( Gauthier et al. 1996) .

Etymology. In honour of Lionel Maerten (Ver-sur-Mer, France), who collected the holotype and kindly donated it to the Muséum National d’Histoire Naturelle collections.

Diagnosis. A tanidromitid with lateral epibranchial spine; slightly concave portion of cervical groove at central posterior margin of mesogastric region; two faint, yet clearly visible, V-shaped grooves on central part of mesogastric region; relatively deep and long postcervical grooves; pustulate ornament on cardiac, epibranchial and epigastric regions (in accordance with Fraaije et al. 2013: 252).

Remarks. A full description and figures of Tanidromites maerteni sp. nov. are supplied by Fraaije et al. (2013).