Suborder:
|
Anarcestina
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Superfamily:
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Triainoceratoidea
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Family:
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Pharciceratidae
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Genus:
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Synpharciceras
|
Species:
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clavilobum+ |
Qualifier:
|
ss |
Author:
|
Sandberger & Sandb. 1850,p.67
|
Lower Boundary:
|
mid.--up.varcus Zone [17,00], 389 million years
|
Upper Boundary:
|
Givetian--Frasnian [GIV--FRS], 385.3 million years
|