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 Palaeastacus rothgaengerae Schweigert & Röper, 2001 ( Fig. 12A, B ) Palaeastacus rothgaengerae Schweigert & Röper, 2001: 4 , fig. 2. — Garassino & Schweigert 2006: 11 . — Schweitzer et al. 2010: 25 . TYPE MATERIAL. — Holotype BSPG 1993 XVIII-200 . TYPE LOCALITY. — Quarry near Brunn , Bavaria , Germany . TYPE AGE. — Kimmeridgian . DESCRIPTION Thoracic appendages Chelate P1; P1 propodus subrectangular; wide P1 fingers, straight, equal in length, as long as propodus; P1 carpus short, subtriangular; P1 merus short, subrectangular. Ornamentation P1 propodus covered by small tubercles; inner margin with a row of strong spines directed forward; fingers without ornamentation; P1 carpus covered by small tubercles and with strong spines directed forward on inner margin; P1 merus with strong spines directed forward on dorsal margin. DISCUSSION Palaeastacus rothgaengerae is known by a very few isolated P1 with chelae characteristic of Palaeastacus : short and subrectangular propodus, short and wide fingers, and strongly spiny ornamentation. P. rothgaengerae is clearly distinct among the other species of Palaeastacus by the particular shape of P1 fingers, which gives its characteristic appearance to the chelae. Indeed, the fingers are very wide with strongly rounded inner margin of dactylus and outer margin of index.