New erymid lobsters from the Nusplingen and Usseltal formations (Upper Jurassic) of southwest Germany

Abstract

Two new species of Late Jurassic erymid lobsters, Stenodactylina devillezi sp. nov. and Stenodactylina geigerae sp. nov., are described on the basis of isolated, but well-preserved chelipeds from the upper Kimmeridgian of Swabia and the lower Tithonian of Bavaria, respectively. The incomplete nature of the material indicates that these lobsters were not autochthonous elements of the Plattenkalk lagoons, but resulted from predation in nearby shallow-water settings.Izvleček V prispevku predstavljamo dve novi vrsti zgornjejurskih jastogov iz družine Erymidae, to sta Stenodactylina devillezi sp. nov. in Stenodactylina geigerae sp. nov. Novi vrsti sta opisani na podlagi izoliranih, vendar dobro ohranjenih škarnikov iz zgornjega kimmeridgija Švabske in spodnjega tithonija Bavarske. Slabša ohranjenost primerkov kaže, da tovrstni jastogi niso bili avtohtoni prebivalci zgornje jurskih lagun, ampak so verjetno poseljevali bližnja plitvovodna okolja.