Glypheopsis Beurlen, 1928

Charbonnier, Sylvain, Garassino, Alessandro, Gendry, Damien, Devillez, Julien & Picot, Laurent, 2023, The decapod crustacean fauna from the Late Jurassic of Cricqueboeuf, Normandy (France), Geodiversitas 45 (19), pp. 573-588 : 576

Genus Glypheopsis Beurlen, 1928

TYPE SPECIES. — Orphnea ornata Quenstedt, 1858 , subsequent designation by Glaessner (1929: 194).

EMENDED DIAGNOSIS (after Charbonnier et al. 2013). — Subcylindrical carapace, laterally compressed; spineless rostrum, elongate, narrow, slightly downward-directed; cephalic region with longitudinal spiny carinae; gastro-orbital groove absent; deep cervical groove, perpendicular to dorsal margin, forming strengthening between cephalic and branchial regions; ventral margin of antennal-pterygostomial region strongly concave; antennal groove joined with ventral margin of cephalic region; antennal spine strongly developed; very narrow and elongate cephalic region; subparallel postcervical and branchiocardiac grooves; deep postcervical groove joined dorsally and ventrally to branchiocardiac groove, delimiting one elongate lobe; short, straight cardiac groove, forward-inclined and joined posteriorly to postcervical groove; cardiac groove joined to dorsal margin; short, straight intercervical groove, backward-inclined from postcervical to cervical grooves; deep straight branchiocardiac groove, strongly inclined, joined to dorsal margin; weak, straight hepatic groove; deep inferior groove, convex posteriorly, joined to hepatic groove.

INCLUDED FOSSIL SPECIES. — See Charbonnier et al. (2013: table 5).