Suborder:
|
Goniatitina
|
Superfamily:
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Pericycloidea
|
Family:
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Pericyclidae
|
Subfamily:
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Ammonellipsitinae
|
Genus:
|
Ammonellipsites
|
Subgenus:
|
Type_B |
Qualifier:
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gx |
Author:
|
Wedekind 1908,p.617
|
Lower Boundary:
|
UD3B--UD3C:(delphinus Zone base) [14,55], 368 million years
|
Upper Boundary:
|
UD4B--UD4C: serpentina Zone base [16,45], 366.4 million years
|