The decapod crustacean fauna from the Late Jurassic of Cricqueboeuf, Normandy (France) Author Charbonnier, Sylvain Centre de Recherche en Paléontologie - Paris (CR 2 P, UMR 7207), MNHN, CNRS, Sorbonne Université, Muséum national d’Histoire naturelle, 57 rue Cuvier, F- 75231 Paris, cedex 05 (France sylvain. charbonnier @ mnhn. fr (corresponding author )) charbonnier@mnhn.fr Author Garassino, Alessandro Department of Earth and Biological Sciences, Loma Linda University, Loma Linda, 92350 CA (United States) alegarassino @ gmail. com alegarassino@gmail.com Author Gendry, Damien Musée de géologie, Univ Rennes, CNRS, Géosciences Rennes, UMR 6118, 263 avenue Général Leclerc, F- 35000 Rennes (France) damien. gendry @ univ-rennes. fr damien.gendry@univ-rennes.fr Author Devillez, Julien Centre de Recherche en Paléontologie - Paris (CR 2 P, UMR 7207), MNHN, CNRS, Sorbonne Université, Muséum national d’Histoire naturelle, 57 rue Cuvier, F- 75231 Paris, cedex 05 (France) julien. devillez @ edu. mnhn. fr devillez@edu.mnhn.fr Author Picot, Laurent Paléospace, Avenue Jean Moulin, F- 14640 Villers-sur-Mer (France) l. picot @ paleospace-villers. fr .picot@paleospace-villers.fr text Geodiversitas 2023 2023-10-26 45 19 573 588 https://sciencepress.mnhn.fr/sites/default/files/articles/pdf/g2023v45a19.pdf journal article 274574 10.5252/geodiversitas2023v45a19 313e6cfc-bed7-4b78-87e2-8d658ab8d391 1638-9395 10066067 urn:lsid:zoobank.org:pub:C8248DDD-2BFE-4EA2-BA9E-92D5E09B9F53 Eryma ventrosum ( Meyer, 1835 ) ( Figs 7 ; 8 ) Glyphea ventrosa Meyer, 1835: 329 . Eryma ventrosum – Devillez & Charbonnier 2021: 32 , 33-35, figs 3-5 [ cum syn. ]. TYPE MATERIAL . — Holotype housed at the University of Strasbourg and destroyed by fire in 1967, cast MNHN .F.B12484. TYPE LOCALITY . — Frétigney, Haute-Saône, Burgundy , France . TYPE AGE . — Late Jurassic (Oxfordian). ADDITIONAL EXAMINED MATERIAL . — 89 specimens including nine articulated specimens with partially preserved pereiopods ( MPV 2013.1.288.34, 43, 45, 47, 52, 55, 56, 60, 61). — 46 isolated, more or less complete carapaces ( MPV 2013.1.164.1, 2013.1.288.1, 2, 4-16, 18, 19, 22-24, 27-33, 37, 38, 41, 42, 46, 49, 53, 54, 57-59, 77-83). — Eight pleons with or without telson or tail fan ( MPV 2013.1.288.20, 25, 48, 50, 51, 74, 87, 88). — 16 isolated P1 chelae more or less complete ( MPV 2013.1.288.17, 21, 26, 35, 36, 39, 40, 44, 63, 64, 68, 71, 73, 76, 86, 89). — Five isolated P1 dactylus and index ( MPV 2013.1.288.62, 66, 67, 69, 85). — Five isolated P1 carpomeral articulations ( MPV 2013.1.288. 65, 70, 72, 75, 84). All the samples are from the Oxfordian of Cricqueboeuf, Calvados, Normandy , France . DESCRIPTION AND DISCUSSION Devillez & Charbonnier (2021: 34 , 36) provided an updated and very complete description of Eryma ventrosum . The specimens from Cricqueboeuf show the fusiform intercalated plate typical of the erymid lobsters and a carapace groove pattern typical of Eryma : cervical groove, strongly inclined dorsally, joined to dorsal margin and to antennal groove; short gastro-orbital groove, originating as a slight median inflexion of the cervical groove; postcervical groove joined to branchiocardiac groove at carapace mid-height; branchiocardiac groove usually strongly inclined, joined to the posterior extremity of hepatic groove; hepatic groove concavo-convex, joined to cervical groove; inferior groove convex posteriorly, joined to hepatic groove and to ventral margin, inflated pleural basis. The specimens from Cricqueboeuf have a cervical groove slightly inflected, a short gastro-orbital groove, slightly curved postcervical and branchiochardiac grooves, joined at carapace mid-height, a ventral extension of the postcervical groove, an inflated ω area, a dense, fine ornamentation made of tubercles and crescent-shaped depressions, orbital and antennal rows of tubercles, elongated P1 chelae with a subrectangular propodus which is compressed dorso-ventrally, bearing long thin fingers, progressively curved inward, and armed with numerous teeth. In addition, some specimens show rounded stalked eyes with a well-preserved framework of subsquare ommatidia ( Fig. 8B , D-F).All these morphological characters are typical of E.ventrosum , which is well-known in the Callovian-Oxfordian deposits of Normandy ( Devillez & Charbonnier 2021 ).