Suborder:
|
Goniatitina
|
Superfamily:
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Gastrioceratoidea
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Family:
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Homoceratidae
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Subfamily:
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Homoceratinae
|
Genus:
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Vallites
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Species:
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demaneti |
Qualifier:
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sn |
Author:
|
Bouckaert & Hodson 1960,p.55
|
Lower Boundary:
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GBY H2c--R1(prereticul.--Ho.magistrorum), 317 million years
|
Upper Boundary:
|
GBY R1a3--R1a4 (R.subretic.--todmorden.), 316.4 million years
|