Suborder:
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Tornoceratina
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Superfamily:
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Praeglyphioceratoidea
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Family:
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Sporadoceratidae
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Genus:
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Sporadoceras?
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Species:
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lenticularis |
Qualifier:
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ss |
Author:
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Richter 1848,p.36
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Lower Boundary:
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UD4C--UD5A:serpent.--Cl.laevigata[16,75], 365.6 million years
|
Upper Boundary:
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UD6E--UD6F:Cym.nigra--A.prorsum [19,40], 360 million years
|