Erymid lobsters from Early Jurassic and Early Cretaceous. A–B, holotype MSNM i7606 of Palaeastacus meyeri (Garassino, 1996), originally described as Eryma, from the Sinemurian of Osteno, Italy: whole specimen (A) and line drawing of the carapace and of the P1 chelae (B); C–D, holotype MSNM il3517 of Eryma sinemuriana (Garassino, 1996), originally described as Pustulina, from the Sinemurian of Osteno, Italy: whole specimen (C) and line drawing of the carapace and of the P1 chela (D); E–G, holotype MNHN.F.A57457 (Clément coll.) of Eryma vocontii Devillez et al., 2016, from the Albian of Rosans, France: carapace in lateral view (E), line drawing (F) and carapace in dorsal view (G); H, paratype MNHN.F.A57458 (Clément coll.) of Eryma vocontii from the Albian of Rosans, France; I–L, Neotype SM B11437 of Eryma sulcatum Harbort, 1905 from the Hauterivian of Speeton, United Kingdom: specimen in lateral view (I), specimen in dorsal view (J), line drawing of the carapace in lateral view (K) and line drawing of the carapace in dorsal view (L). Scale bars = 10 mm. Abbreviations: a: branchiocardiac groove; b: antennal groove; b₁: hepatic groove; c: postcervical groove; d: gastro-orbital groove; e₁e: cervical groove; i: inferior groove; ip: intercalated plate; χ: attachment site of adductor testis muscle. Photographs: A. Garassino (A, B), L. Cazes (E, F), J. Devillez (G, H). Line drawings: J. Devillez.