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Science 1 November 1991:
Vol. 254. no. 5032, pp. 701 - 703
DOI: 10.1126/science.254.5032.701
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Articles

First Fossil Hagfish (Myxinoidea): A Record from the Pennsylvanian of Illinois

DAVID BARDACK 1

1 Department of Biological Sciences, University of Illinois at Chicago, Chicago, IL 60680 and Field Museum of Natural History, Chicago, IL 60605

A fossil hagfish (Myxinoidea), a new genus from the Pennsylvanian, shows tentacles, structures of the head skeleton and internal organs. No other fossils of this group have been reported. Although this new hagfish differs from living forms in position of the gills, feeding apparatus, and relatively well developed eyes, it is quite similar to its recent relatives. Thus, hagfishes have a long, conservative geological history. Cladograms showing myxinoids as a sister group to the vertebrates are supported.

Submitted on May 15, 1991
Accepted on August 7, 1991


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