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First Record Of Soft-Shelled Turtles (Cryptodira, Trionychidae) From The Late Cretaceous Of Europe

Scheyer, Torsten M.; Mors, Thomas and Einarsson, Elisabeth LU (2012) In Journal of Vertebrate Paleontology 32(5). p.1027-1032
Abstract
Fossil soft-shelled turtles (Trionychidae) have so far been recognized in all continents except Antarctica, based largely on remains preserving their diagnostic sculptured shell bones. The origin of the group is generally assumed to be in the Early Cretaceous of Asia, whereas they first appear in North America and Europe during the Late Cretaceous and Paleocene, respectively. Here we describe the first record of an indeterminate trionychid from the late early Campanian from southern Sweden, a part of the paleobiogeographically isolated Fenno-Scandian Shield, thus extending the stratigraphic record of the group in Europe back about 15 Ma into the Late Cretaceous. Our finding provides evidence against the currently favored dispersal scenario... (More)
Fossil soft-shelled turtles (Trionychidae) have so far been recognized in all continents except Antarctica, based largely on remains preserving their diagnostic sculptured shell bones. The origin of the group is generally assumed to be in the Early Cretaceous of Asia, whereas they first appear in North America and Europe during the Late Cretaceous and Paleocene, respectively. Here we describe the first record of an indeterminate trionychid from the late early Campanian from southern Sweden, a part of the paleobiogeographically isolated Fenno-Scandian Shield, thus extending the stratigraphic record of the group in Europe back about 15 Ma into the Late Cretaceous. Our finding provides evidence against the currently favored dispersal scenario in which trionychid turtles are interpreted to have come to Europe first during the Paleocene either directly from North America or via Asia. The described indeterminate trionychid possibly represents a relic of a pre-Cretaceous endemic radiation of North European trionychids living mainly on the Fenno-Skandian Shield or it may indicate a potential lower latitude dispersal route of trionychids from Asia to North America via Europe during the Late Cretaceous. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Vertebrate Paleontology
volume
32
issue
5
pages
1027 - 1032
publisher
Society of Vertebrate Paleontology
external identifiers
  • wos:000308128800004
  • scopus:84865846307
ISSN
0272-4634
DOI
10.1080/02724634.2012.685036
language
English
LU publication?
yes
id
15973238-1744-499b-a24c-8258fd7e212b (old id 3147422)
date added to LUP
2012-11-16 09:30:36
date last changed
2017-09-03 04:00:33
@article{15973238-1744-499b-a24c-8258fd7e212b,
  abstract     = {Fossil soft-shelled turtles (Trionychidae) have so far been recognized in all continents except Antarctica, based largely on remains preserving their diagnostic sculptured shell bones. The origin of the group is generally assumed to be in the Early Cretaceous of Asia, whereas they first appear in North America and Europe during the Late Cretaceous and Paleocene, respectively. Here we describe the first record of an indeterminate trionychid from the late early Campanian from southern Sweden, a part of the paleobiogeographically isolated Fenno-Scandian Shield, thus extending the stratigraphic record of the group in Europe back about 15 Ma into the Late Cretaceous. Our finding provides evidence against the currently favored dispersal scenario in which trionychid turtles are interpreted to have come to Europe first during the Paleocene either directly from North America or via Asia. The described indeterminate trionychid possibly represents a relic of a pre-Cretaceous endemic radiation of North European trionychids living mainly on the Fenno-Skandian Shield or it may indicate a potential lower latitude dispersal route of trionychids from Asia to North America via Europe during the Late Cretaceous.},
  author       = {Scheyer, Torsten M. and Mors, Thomas and Einarsson, Elisabeth},
  issn         = {0272-4634},
  language     = {eng},
  number       = {5},
  pages        = {1027--1032},
  publisher    = {Society of Vertebrate Paleontology},
  series       = {Journal of Vertebrate Paleontology},
  title        = {First Record Of Soft-Shelled Turtles (Cryptodira, Trionychidae) From The Late Cretaceous Of Europe},
  url          = {http://dx.doi.org/10.1080/02724634.2012.685036},
  volume       = {32},
  year         = {2012},
}