ammonites

W. H. Easton 1962

Full reference
W. H. Easton. 1962. Carboniferous formations and faunas of central Montana. United States Geological Survey Professional Paper 348:1-126 [J. Alroy/M. Sommers]
Metadata
ID number:  348
Created:  1999-11-09 08:22:16
Modified:  1999-11-10 03:22:16
Taxonomy:  stated without evidence