On the nature of decapod burrows "Spongia sudolica" of Zaręczny (1878)

Abstract

The specimens from transgressive Cenomanian·deposits of the Cracow Upland, originally described by Zaręczny (1878) as Spongia sudolica, actually represent decapod crustacean burrows of the ichnospecies Thalassinoides sudolicus (Zaręczny, 1878). The occurrence of this ichnospecies is limited to some parts of the abrasion surface.