Palaeastacus Bell, 1850

Odin, Giliane P., Charbonnier, Sylvain, Devillez, Julien & Schweigert, Günter, 2019, On unreported historical specimens of marine arthropods from the Solnhofen and Nusplingen Lithographic Limestones (Late Jurassic, Germany) housed at the Muséum national d’Histoire naturelle, Paris, Geodiversitas 41 (17), pp. 643-662 : 652-654

Genus Palaeastacus Bell, 1850

TYPE SPECIES. — Astacus sussexiensis Mantell, 1824, by subsequent designation of Glaessner(1929).

Palaeastacus fuciformis ( Schlotheim, 1822) ( Fig. 7 A-C)

STUDIED MATERIAL. — Charbonnier & Garassino (2012) mentioned three specimens: two from Solnhofen (MNHN.F.B13449; MNHN. GG.2004/8245) and one from an unknown locality (MNHN. GG.2004/7998-8106). We do not change their attribution .

COMMENTS

Since only one specimen (MNHN.F.B13449) was figured by Charbonnier & Garassino (2012), we additionally figure the specimen MNHN.GG.2004/8245 ( Fig. 7 A-C), which is particularly well-preserved; notably, the ornamentation is nearly complete.

Figures

FIG. 7. — Other Erymoidea from the Late Jurassic Solnhofen Lithographic Limestones (Bavaria, Germany): A-C, specimen MNHN.GG.2004/8245 of Palaeastacus fuciformis (Schlotheim, 1822) from Solnhofen: specimen in natural light (A), specimen in UV light (B) and line drawing (C); D, specimen MNHN.F.B13445 of Pustulina minuta (Schlotheim, 1822) from Solnhofen in UV light. Abbreviations: a1, antennule; a2, antenna; e, eye; Mxp3, third maxillipeds; P1-P5, periopods 1 to 5. Scale bars: A-C, 1 cm; D, 0.5 cm. Photographs: L. Cazes. Line drawing: J. Devillez.