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8 Specimen Results
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Class:
Acanthodii
Class:
Pteraspidomorpha
Filter by
Phylum
Chordata (8)
Order
(7)
Astrapidiformes (1)
Family
Acanthodidae (7)
Astraspididae (1)
Genus
Acanthodes (7)
Astraspis (1)
has media
Has media (2)
Has no media (6)
Individual/Organization
Zakrzewski, R.J. (8)
Bonner, O.W. (1)
Lockhard, W. (7)
Period
Carboniferous (7)
Ordovician (1)
Epoch
Pennsylvanian (7)
Formation
Harding (1)
Topeka (7)
Country
United States of America (8)
State/Province
Colorado (1)
Kansas (7)
County
Freemont (1)
Greenwood (7)