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3 Specimen Results
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State/Province:
Colorado
Period:
Ordovician
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Phylum
Chordata (2)
Mollusca (1)
Order
(1)
Astrapidiformes (1)
Euomphalina (1)
Class
Conodonta (1)
Gastropoda (1)
Pteraspidomorpha (1)
Family
Archeognathidae (1)
Astraspididae (1)
Helicotomidae (1)
Genus
Archeognathus (1)
Astraspis (1)
Helicotoma (1)
Individual/Organization
Zakrzewski, R.J. (1)
Wooster, L.C. (1)
Bonner, O.W. (2)
Klapper, G. (1)
Period
Ordovician (3)
Formation
Harding (2)
Country
United States of America (3)
County
El Paso (1)
Freemont (2)