Skeletal anatomy, phylogenetic relationships, and paleoecology of the Eocene urolophid stingray Arechia crassicaudata (Blainville, 1818) from Monte Postale (Bolca Lagerstätte, Italy)
- Author(s)
- Giuseppe Marramà, Giorgio Carnevale, Gavin Naylor, Jürgen Kriwet
- Abstract
In this paper we re-examine the taxonomy and systematic position of the Eocene
Lagerstätte which are traditionally assigned to Urolophus crassicaudatus
morphology supports an assignment to the Eocene stingray genus Arechia
from the Ypresian-Lutetian of northern and western Africa. The teeth of the Bolca
A. arambourgi in some characters (i.e., labial face with concave profile just below
face slightly more developed than the labial, with convex profile in its upper part
region) that justify the recognition of a second species within the genus, i.e., A.
unique combination of features (e.g., pectoral disc large and rhomboid; tail short,
centra; distal segment of propterygia located between mouth and antorbital
radials; 100–117 pectoral radials; 15–17 pelvic-fin radials; elongated caudal fin
relationship with the living urolophids Urolophus and Trygonoptera. Arechia was a
coastal and warm habitats that characterize the Monte Postale paleoenvironment.- Organisation(s)
- Department of Palaeontology
- External organisation(s)
- Università degli Studi di Torino, Florida Museum of Natural History
- Journal
- Journal of Vertebrate Paleontology
- Volume
- 40
- Pages
- 1-12
- No. of pages
- 12
- ISSN
- 0272-4634
- DOI
- https://doi.org/10.1080/02724634.2020.1803339
- Publication date
- 12-2020
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 106012 Evolutionary research, 105118 Palaeontology
- Keywords
- Portal url
- https://ucris.univie.ac.at/portal/en/publications/skeletal-anatomy-phylogenetic-relationships-and-paleoecology-of-the-eocene-urolophid-stingray-arechia-crassicaudata-blainville-1818-from-monte-postale-bolca-lagerstatte-italy(35344be8-2e28-4dd5-ad1b-062740a181d6).html