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Porpoise or dolphin


greel

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Does my ID look correct?  This came from Miocene spoil piles at the Museum in Aurora, NC.

 

-greel

100_4312x.jpg

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keep in mind Boesse's remark on terminology("periotic" and "petrosal")

 

 

 

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Hi all! Nice periotic. That appears closest to periotics which Whitmore and Kaltenbach (2008) identified as aff. Liolithax pappus (which they transferred to Lophocetus).

 

Harry: left periotic is a kogiid pygmy sperm whale; right periotic is not Pomatodelphis but within the clade Delphinida (Inioidea + Delphinoidea); Pomatodelphis has a second little flange next to the posterior process and still has some semblance of an anterior bullar facet. This specimen is very likely a "kentriodontid", perhaps something like Kentriodon.

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Amazing.  I am just a novice on this..  Here I thought that a periodic was a periodic was a periodic and am unable to differentiate right from left.

This post is a keeper and I need to get a LOT smarter on small periodics and thanks to all who contributed to this thread.    Jack

The White Queen  ".... in her youth she could believe "six impossible things before breakfast"

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I am glad to have Boesse's corrections and additions -- very glad!  But, Jack, a periodic is not a periotic.  Your auto-correct is doing you wrong.  :headscratch:

http://pristis.wix.com/the-demijohn-page

 

What seest thou else

In the dark backward and abysm of time?

---Shakespeare, The Tempest

 

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