Vertebrate micro-remains from the Upper Devonian of East Greenland with comments on the Frasnian-Famennian boundary


Blom, H., Carlsson, A. and Marshall, J.E.A. (2006) Vertebrate micro-remains from the Upper Devonian of East Greenland with comments on the Frasnian-Famennian boundary. Bulletin of the Geological Society of Denmark, 53, 39-46.

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Description/Abstract

Vertebrate micro-remains of jawless vertebrates (psammosteid heterostracans) and gnathostomes (acanthodians and sarcopterygians) occur in a residue collected from the Late Devonian Kap Graah Group sandstones of East Greenland. Fragmentary and isolated elements of psammosteids are assigned to Psammosteus sp. The acanthodians are represented by scales of acanthodiform type and poorly preserved fin spines. Tooth and scale fragments of sarcopterygians may suggest a porolepiform affinity. This assemblage and the associated macro-vertebrate fauna indicate a Frasnian age for anotherwise assumed Famennian part of the East Greenland succession, and do rather effectively bracket the Frasnian–Famennian boundary.

Item Type: Article
ISSNs: 0011-6297 (print)
Keywords: Upper Devonian, East Greenland, Kap Graah Group, jawless vertebrates, psammosteids,acanthodians, sarcopterygians
Subjects: Q Science > QE Geology
Divisions: University Structure - Pre August 2011 > School of Ocean & Earth Science (SOC/SOES)
ePrint ID: 49667
Date Deposited: 21 Nov 2007
Last Modified: 27 Mar 2014 18:33
URI: http://eprints.soton.ac.uk/id/eprint/49667

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