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1 Acta Geologica Polonica

1 2024

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The serpulid tube worm Laqueoserpula reussi (Weinzettl, 1910) from the Upper Cretaceous of the Bohemian Cretaceous Basin – an alleged gastropod which has turned out to be a characteristic faunal element of marine nearshore high-energy environments

Jäger Manfred, Kočí Tomáš, Sklenář Jan, Zágoršek Kamil

Acta Geologica Polonica

2024

Vol. 74, no. 2

art. no. e12

The serpulid tube worm Laqueoserpula reussi (Weinzettl, 1910), originally introduced as a gastropod named Burtinella(?) reussi, is described from the Upper Cenomanian and Lower Turonian of the Bohemian Cretaceous Basin. It had usually been confused with other species and genera before 2008. Comparison with specimens from the type locality of the type species of the genus Laqueoserpula Lommerzheim, 1979 confirms the affiliation of the Bohemian species to this genus. The simple prismatic (SP) ultrastructure of the tube wall of L. reussiagrees with an assignment to the tribe Serpulini Rafinesque, 1815. In the Upper Cretaceous, representatives of Laqueoserpula are exclusively found in nearshore deposits, where they are accompanied by a high diverse marine invertebrate fauna. By its compact, large and robust tube forming a spiral and extremely thick tube wall, L. reussi was well-adapted to live in nearshore high energy environments, where its tube could be encrusted by bryozoans, brachiopods and oysters, and infested by hydroids and borers.