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Ptychodus04

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I was thinking this is a Knightia but now I’m not so sure. The body shape seems wrong and it does not appear to be compressed. @Fossildude19 @RJB

 

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1 hour ago, Ptychodus04 said:

I was thinking this is a Knightia but now I’m not so sure. The body shape seems wrong and it does not appear to be compressed. 

I believe it's a Knightia

The lack of pectoral fins 1/3 of the way up the body, lack of a long anal fin, and lack of thicker support bones in the post cranial hump tells me it isn't a Diplomystus

The fact that this is also about 5 inches in length puts it at a Knightia size range, and rules out Gosiuteichthys  and Erismatopterus.

Lack of a second dorsal rules out Mioplosus. 

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Maybe there was a nice looking lady fish nearby. It looks as if he was sucking in his gut. :)

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10 hours ago, Fossildude19 said:

I believe it's a Knightia

The lack of pectoral fins 1/3 of the way up the body, lack of a long anal fin, and lack of thicker support bones in the post cranial hump tells me it isn't a Diplomystus

The fact that this is also about 5 inches in length puts it at a Knightia size range, and rules out Gosiuteichthys  and Erismatopterus.

Lack of a second dorsal rules out Mioplosus. 

Thanks for the confirmation Tim. I needed a gut check before I stuck this in the “big box o Knightias” I’m putting together for a client. :D
 

 

6 hours ago, Rockwood said:

Maybe there was a nice looking lady fish nearby. It looks as if he was sucking in his gut. :)

Very likely.

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1 hour ago, Ptychodus04 said:

Thanks for the confirmation Tim. I needed a gut check before I stuck this in the “big box o Knightias” I’m putting together for a client. :D

Happy to help, Kris. ;) 

I have a small 2.5 incher that is quite similar looking. 

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