Ammonites from the
 Collignoniceras woolgari
Biozone
Collignoniceras woolgari (Mantell) 1822

C. woolgari
molds of Collignoniceras woolgari from the Tununk Member of the Mancos Shale

Flattened Collignoniceras
Flattened  shells of Collignoniceras woolgari from the Tununk Member of the Mancos Shale



External molds of Collignoniceras woolgari
External molds of Collignoniceras woolgari from the Tununk Member of the Mancos Shale

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