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Juvenile Ammonite question

Crann

By Crann
in General Fossil Discussion

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Crann Regular Member

Crann

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Hi, I have these two same sized Hildoceras, I'm thinking one is a Juvenile as can see the mouth border and one is a large one that has broken, would this be correct and would you say both specimens are the same ? Thanks.

20170929_214434.jpg

20170929_214458.jpg

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Coco Regular Member

Coco

Posted
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Hi,

 

Perhaps Hildoceras bifrons on the left pic, and I don't know for the right pic...

 

Coco

----------------------
OUTIL POUR MESURER VOS FOSSILES : ici

Ma bibliothèque PDF 1 (Poissons et sélaciens récents & fossiles) : ici
Ma bibliothèque PDF 2 (Animaux vivants - sans poissons ni sélaciens) : ici
Mâchoires sélaciennes récentes : ici
Hétérodontiques et sélaciens : ici
Oeufs sélaciens récents : ici
Otolithes de poissons récents ! ici

Un Greg...

Badges-IPFOTH.jpg.f4a8635cda47a3cc506743a8aabce700.jpg Badges-MOTM.jpg.461001e1a9db5dc29ca1c07a041a1a86.jpg

 

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