New insights into the taxonomy, morphology and phylogeny of Late Jurassic rays (Chondrichthyes: Batomorphii)

Autor(en)
Julia Jambura-Türtscher, Patrick Leopold Jambura-Türtscher, Eduardo Villalobos Segura, Faviel A. López-Romero, Charlie J. Underwood, Frederik Spindler, Detlev Thies, Bruce Lauer, René Lauer, Jürgen Kriwet
Abstrakt

The Late Jurassic fossil deposits of southern Germany, collectively known as the Solnhofen Plattenkalks, provide an exceptional source of holomorphic cartilaginous fishes (Chondrichthyes), including sharks and rays. While the fossil record of this group is predominantly based on isolated teeth, whole-body specimens from these deposits offer significant potential for advancing research in taxonomy, morphology, palaeoecology and phylogeny. However, studies of these fossils remain limited. The present study revises the morphology, diversity, and phylogeny of the ray fauna from Solnhofen and other coeval European deposits using morphological characters and morphometric analyses. Two new taxa are described, including the first ray discovered from the Upper Kimmeridgian of Painten, which represents the oldest Late Jurassic ray taxon from Germany based on skeletal remains. In addition, an updated phylogenetic analysis suggests that all holomorphic Late Jurassic rays form a monophyletic group representing a stem group order. Despite progress in understanding the diversity and phylogeny of early rays, challenges remain in resolving their phylogenetic relationships. This research highlights the need for comprehensive studies of wellpreserved
fossil chondrichthyans to improve our understanding of their diversity, evolutionary
history, and deep-time systematics.

Organisation(en)
Institut für Paläontologie
Externe Organisation(en)
University of London, PALAEONAVIX, Gottfried Wilhelm Leibniz Universität Hannover, Lauer Foundation for Paleontology, Science & Education
Seiten
155-155
Anzahl der Seiten
1
Publikationsdatum
12-2024
Peer-reviewed
Ja
ÖFOS 2012
105118 Paläontologie
Link zum Portal
https://ucrisportal.univie.ac.at/de/publications/cc32c134-df24-49c1-b9d8-49797f7bcb32