Diversity Patterns of Late Jurassic Chondrichthyans: New Insights from a Historically Collected Hybodontiform Tooth Assemblage from Poland
- Autor(en)
- Sebastian Stumpf, Stefan Meng, Jürgen Kriwet
- Abstrakt
Here, we provide a detailed taxonomic reassessment of a historically collected chondrichthyan dental assemblage from the lower Kimmeridgian of Czarnoglowy in north-western Poland and discuss its significance for better understanding hybodontiform diversity patterns prior to their post-Jurassic decline in fully marine environments. In spite of its low taxonomic diversity, consisting of four large-toothed taxa (viz., Strophodus udulfensis, Asteracanthus ornatissimus, Planohybodus sp. and cf. Meristodonoides sp.), this assemblage is remarkable in that there are only very few Mesozoic hybodontiform assemblages with more large-toothed genera or even species. Comparisons with other European Late Jurassic hybodontiform-bearing localities demonstrate fairly homogenous distribution patterns characterized by large-bodied epipelagic forms of high dispersal ability. This is in stark contrast to post-Jurassic hybodontiform associations, which are dominated by smaller species that were predominantly bound to marginal marine and continental waters, suggesting a major reorganization of chondrichthyan communities during the Early Cretaceous.
- Organisation(en)
- Institut für Paläontologie
- Externe Organisation(en)
- University of Greifswald
- Journal
- Diversity
- Band
- 14
- Anzahl der Seiten
- 18
- ISSN
- 1424-2818
- DOI
- https://doi.org/10.3390/d14020085
- Publikationsdatum
- 01-2022
- Peer-reviewed
- Ja
- ÖFOS 2012
- 105118 Paläontologie
- Schlagwörter
- ASJC Scopus Sachgebiete
- Ecological Modelling, Nature and Landscape Conservation, Agricultural and Biological Sciences (miscellaneous), Ecology
- Sustainable Development Goals
- SDG 14 – Leben unter Wasser
- Link zum Portal
- https://ucrisportal.univie.ac.at/de/publications/cd84f9c0-9998-46a2-a048-e9124628c286