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Diversity Patterns of Late Jurassic Chondrichthyans: New Insights from a Historically Collected Hybodontiform Tooth Assemblage from Poland
- Here, we provide a detailed taxonomic reassessment of a historically collected chondrichthyan dental assemblage from the lower Kimmeridgian of Czarnogłowy 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.
Author: | Sebastian Stumpf, Stefan Meng, Jürgen Kriwet |
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URN: | urn:nbn:de:gbv:9-opus-59316 |
DOI: | https://doi.org/10.3390/d14020085 |
ISSN: | 1424-2818 |
Parent Title (English): | Diversity |
Publisher: | MDPI |
Place of publication: | Basel |
Editor: | Michael Wink, Eric Buffetaut |
Document Type: | Article |
Language: | English |
Date of first Publication: | 2022/01/26 |
Release Date: | 2022/07/05 |
Tag: | Chondrichthyes; Hybodontiformes; Kimmeridgian; Late Jurassic; Poland; biogeography; diversity |
GND Keyword: | - |
Volume: | 14 |
Article Number: | 85 |
Page Number: | 18 |
Faculties: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Geographie und Geologie |
Licence (German): | Creative Commons - Namensnennung |