Suborder:
|
Anarcestina
|
Superfamily:
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Triainoceratoidea
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Family:
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Pharciceratidae
|
Genus:
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Neopharciceras
|
Species:
|
rotundolobatum |
Qualifier:
|
ss |
Author:
|
Bogoslovsky 1982,p.36
|
Lower Boundary:
|
mid.--up.varcus Zone [17,00], 389 million years
|
Upper Boundary:
|
Givetian--Frasnian [GIV--FRS], 385.3 million years
|