Suborder:
|
Goniatitina
|
Superfamily:
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Gastrioceratoidea
|
Family:
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Gastrioceratidae
|
Genus:
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Cancelloceras
|
Subgenus:
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Crencelloceras
|
Species:
|
huntsvillense |
Qualifier:
|
ss |
Author:
|
Manger & Saunders 1980,p.43
|
Lower Boundary:
|
UAR Cane Hill--Prairie Grove of Hale Fm., 314.8 million years
|
Upper Boundary:
|
U Halian--Bloydian, Brentwood base, 313 million years
|