Suborder:
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Goniatitina
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Superfamily:
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Neoglyphioceratoidea
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Family:
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Cravenoceratidae
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Subfamily:
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Nuculoceratinae
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Genus:
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Nuculoceras?
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Species:
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delicatum |
Qualifier:
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ss |
Author:
|
Sheng 1983,p.62
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Lower Boundary:
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RUS Nm1a1 base, Hypergon.-Ferganoc. GZ, 327.8 million years
|
Upper Boundary:
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RUS Nm1b2--Nm1c1,Fayettevillea-Delepinoc, 324 million years
|