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 Eryma veltheimii ( Münster, 1839 ) ( Fig. 7 D-F) Glyphea veltheimii Münster, 1839: 22 , pl. 10, fig. 1. — Fraas 1855: 94 . — Glaessner 1929: 159 . — Woods 1930: 80, pl. 22, figs 5-6. — Van Straelen 1936: 9 . — Förster 1966: 124 , fig. 23, pl. 17, figs 2, 4. — Taylor 1979: 34 . — Feldmann & Titus 2006: 64 . — Karasawa et al. 2013 : table 1. Eryma veltheimii – Bronn 1849: 579 . — Oppel 1861: 358 ; 1862: 36 , pl. 7, fig. 5. — Beurlen 1928: 156 . — Schweigert et al. 2000: 7 , fig. 1c, pl. 4, figs 1-3. — Garassino & Schweigert 2006: 8 , fig. 8, pl. 1, fig. 2, pl. 11, figs 3-4. — Feldmann & Titus 2006: 64 . — Fürsich et al. 2007a : table 2. — Odin et al. 2019: 652 . Clytia veltheimii – Beurlen 1928: 170 . Galicia veltheimii – Schweitzer et al. 2010: 25 . — Charbonnier & Garassino 2012: 864. — Audo et al. 2014: 462 . — Schweigert 2015 : fig. 544. TYPE MATERIAL. — Holotype BSPG AS VII 186. TYPE LOCALITY. — Kapfelberg quarry near Kelheim, Bavaria , Germany . TYPE AGE. — Kimmeridgian. DESCRIPTION Carapace Short, spiny rostrum; fusiform intercalated plate; elongated cephalic region, representing almost half of the length of the carapace; wide, deep cervical groove, strongly inclined, joined to dorsal margin; deep gastro-orbital groove, elongated and oblique; postcervical groove not identified; wide, deep branchiocardiac groove, strongly inclined. Pleon and uropods Somites with subtriangular pleurites; telson with a median line and two longitudinal crests along its lateral margins, crests ended by a small spine; uropods as long as telson, with a small spine on the external margin; uropodal endopods with a longitudinal carina; uropodal exopods with a diaeresis, and a longitudinal carina. Thoracic appendages Chelate P1; P1 propodus subrectangular, strongly elongated, dorso-ventrally compressed; presence of a strong spine at the inner distal extremity of the propodus, above the dactylus; slender fingers, progressively narrowing to their distal extremity, slightly curved inward; occlusal margin without teeth; P1 carpus short, subtriangular; thin P2-P5. Ornamentation Carapace covered by small tubercles; intercalated plate covered by small tubercles; oblique orbital row of tubercles in cephalic region; presence of a strong antennal spine; smooth P1 propodus and fingers. DISCUSSION This species is known by some specimens, mainly from the Kimmeridgian plattenkalks of Wattendorf ( Audo et al. 2014 ). Because of the compression of the holotype , it is difficult to clearly identify the grooves of the carapace. Indeed, only the cervical, gastro-orbital and branchiocardiac grooves are wellmarked. However, the assignation to Eryma is supported by the gastro-orbital groove wich is not divided in two branches and by the shape of the P1 chelae (elongated subrectangular propodus; elongated fingers, curved inward and narrowing to their distal extremity). The difficulty to identify the carapace grooves does not allow the comparison with that of other species. The presence of a spine at the distal extremity of the inner margin of the propodus ( Fig. 7D ) is characteristic of this species. Moreover, the lack of ornamentation on the P1 chelae is a characteristic only found in E. veltheimii and E. westphali . A spiny rostrum like in E. veltheimii is not found in E. mandelslohi , E. modestiforme , and E. ventrosum . Garassino & Schweigert (2006) pointed out the absence of spines on the margin of the telson, contrary to E. modestiforme . However, the careful examination of the type specimen shows that two marginal spines are present ( Fig. 7F ). Finally, the carapace of E. veltheimii is only covered by tubercles, contrary to E. georgeii , E. mandelslohi , E. quadriverrucatum , E. ventrosum , and E. westphali .