Jagorina

From Wikipedia, the free encyclopedia

This is an old revision of this page, as edited by Apokryltaros (talk | contribs) at 05:46, 15 December 2006 (References). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.

Jump to navigation Jump to search

Jagorina
Temporal range: Early Devonian
Fossil
Scientific classification
Kingdom:
Phylum:
Class:
Order:
Family:
Genus:
Jagorina
Species:
J. pandora

Jagorina pandora ("Jagorin's Gift") was a rhenanid placoderm of Mid Devonian Germany. As with other rhenanids, it was a flattened, skate-like fish protected in an armor made up of unfused tubercles, and preyed on other, smaller fish by ambushing them from the sea bottom.

Despite the fact that the only specimen being a single, uncrushed skull, or perhaps because of it, J. pandora is the second most studied rhenanid, after Gemuendina stuertzi. It is from Jagorina that the details of the skull anatomy of rhenanids are known. Although scientists know of the overall anatomy and bodyplan of rhenanids because of G. stuertzi, very little information has been gleaned from the skulls of those specimens, as they all have been greatly flattened.

References

  • Janvier, Philippe. Early Vertebrates Oxford, New York: Oxford University Press, 1998. ISBN 0-19-854047-7
  • Long, John A. The Rise of Fishes: 500 Million Years of Evolution Baltimore: The John Hopkins University Press, 1996. ISBN 0-8018-5438-5