Review of the Late Jurassic erymoid lobsters (Crustacea: Decapoda) Author Devillez, Julien Muséum national d’Histoire naturelle, Paris Centre de Recherche en Paléontologie – Paris (CR 2 P, UMR 7207), Sorbonne Université, MNHN, UPMC, CNRS, 57 rue Cuvier, F- 75231 Parix cedex 05 Paris (France) julien.devillez@edu.mnhn.fr Author Charbonnier, Sylvain Muséum national d’Histoire naturelle, Paris Centre de Recherche en Paléontologie – Paris (CR 2 P, UMR 7207), Sorbonne Université, MNHN, UPMC, CNRS, 57 rue Cuvier, F- 75231 Parix cedex 05 Paris (France) sylvain.charbonnier@mnhn.fr text Geodiversitas 2021 2021-01-28 43 2 25 73 journal article 10.5252/geodiversitas2021v43a2 a2545208-1888-44e9-82d3-b429219cd070 1638-9395 4486479 urn:lsid:zoobank.org:pub:6EF0DFAC-609D-407D-B4CC-CB985C3295FC Genus Enoploclytia M’Coy, 1849 ( Fig. 1 M-N) Enoploclytia M’Coy, 1849: 330 ; 1854: 137 . — Zittel 1885: 694 . — Fritsch & Kafka 1887: 27 . — Van Straelen 1925: 278 . — Beurlen 1928: 164 . — Rathbun 1926: 128 . — Secrétan 1964: 81 . — Förster 1966: 146 . — Taylor 1979: 25 . — Aguirre-Urreta 1989: 514. — Feldmann et al. 2015: 3 . — Devillez et al. 2016: 530 , fig. 1I-J; 2017: 786, fig. 4A-B; 2018: 144, fig. 2A-B. Enoploclytia Enoploclytia – Mertin 1941: 160 . — Glaessner 1969: 455 . TYPE SPECIES. — Astacus leachii Mantell, 1822 , by original designation. DIAGNOSIS BY Devillez et al. (2018) . — Fusiform intercalated plate; wide, deep cervical groove, joined to dorsal margin and to antennal groove; long, wide gastro-orbital groove originating as a median inflexion of cervical groove, delimiting two gastroorbital lobes; sinuous postcervical groove, joined to dorsal margin and to hepatic groove, with ventral extension at carapace mid-height; short branchio-cardiac groove, interrupted in upper part of carapace, joined to dorsal margin, not joined to postcervical groove; concavo-convex hepatic groove, joined to cervical groove; prominent ω and χ bulges; inferior groove convex posteriorly, joined to hepatic groove; carapace with heterogeneous coarse ornamentation; massive globose P1 propodus, rounded in transversal section; long and thin P1 fingers (straight in dorsal view); occlusal margins armed with sharp and slender tooth; P1 merus with strong, prominent distal process at extern side of its ventral extremity. DISCUSSION Recently, Devillez et al. (2018) reported a specimen identified as Enoploclytia sp. from the Oxfordian of France ( Fig. 18 ). Despite its poor preservation, this fossil exhibits the typical carapace groove pattern of the genus: elongated gastro-orbital groove, with two divergent distal branches, a sinuous postcervical groove joined to the posterior extremity of the hepatic groove and not joined to the branchiocardiac groove, which is short and interrupted in the branchial region ( Fig. 18C ). This specimen is the oldest occurrence of Enoploclytia , and the only known in the Jurassic. Indeed, Enoploclytia is more typical of the Cretaceous.