Coleia incerta Secrétan, 1964

Charbonnier, Sylvain, Garassino, Alessandro & Pasini, Giovanni, 2012, Revision of Mesozoic decapod crustaceans from Madagascar, Geodiversitas 34 (2), pp. 313-357 : 313-357

? Coleia incerta Secrétan, 1964 ( Fig. 18A)

Coleia incerta Secrétan, 1964: 115-119 , pl. 18, figs 10, 11. — Schweitzer et al. 2010: 44.

HOLOTYPE. — MNHN.F. R 03969.

TYPE LOCALITY. — Antsalova (gisement 217), southern Maintirano region, northern Manambolo River, northern Morondava Basin, Tulear Province.

TYPE AGE. — Late Tithonian ( Aulacosphinctes hollandi zone).

DISCUSSION

Following the definition of? Coleia by Van Straelen (1923, 1925), we doubt the generic attribution of the specimen studied by Secrétan (1964). In fact, the most important diagnostic characters of the genus are to be found on the cephalothorax and uropods. Since the single Malagasy specimen preserves only a small fragment of the posterior carapace and the abdominal somites, it is impossible to recognize the diagnostic generic characters.Although Secrétan (1964) pointed out that the three fragmentary carinae on the cephalothorax hint at? Coleia , this feature can also be found in other palinuran taxa, such as Linuparus . The abdomen of the present specimen, considered typical of the eryonids by Secrétan (1964), can equally be assigned to other palinuran taxa. In conclusion, the characters displayed by the holotype are too general to ascribe it any fossil genus known to date.

Infraorder ACHELATA Scholtz & Richter, 1995 Family PALINURIDAE Latreille, 1802