Mini Dentalium

[OregonFossil]

So as I was going to toss this piece of rock from a much larger split piece, I saw a very small white piece of shell, thought it was a portion of Mollusk shell. I always check so put it under the scope. Dentalium of some sort. Not sure it is worth the effort to try and remove it from the matrix, but at 4mm long (perhaps half of the full length, and a mm wide), smallest I've found. Perhaps in the dark of winter for something to do....Keasey Formation.

Edited August 6 by OregonFossil

[MikeR]

I need to see the tip to be certain, but probably not Dentaliidae, but Gadilidae.  These scaphopods were at one time lumped under Cadulus, but now divided between a number of different genera LINK

[OregonFossil]

Thanks, I will have to very carefully see if I can remove the matrix. It certainly looks curved and is very small.

[OregonFossil]

15 hours ago, MikeR said:

I need to see the tip to be certain, but probably not Dentaliidae, but Gadilidae.  These scaphopods were at one time lumped under Cadulus, but now divided between a number of different genera LINK

So far Jstor does have much info on Gadilida, and none of my papers list it in the Keasey formation, so perhaps it might be a type specimen....

[MikeR]

25 minutes ago, OregonFossil said:

So far Jstor does have much info on Gadilida, and none of my papers list it in the Keasey formation, so perhaps it might be a type specimen....

 

Is Cadulus listed in the Keasey?

[MikeR]

Two previous discussions on Gadilidae

 

 

 

[OregonFossil]

On 8/7/2023 at 7:26 AM, MikeR said:

 

Is Cadulus listed in the Keasey?

Just found a mention of an unidentified Cadulus in the Keasey formation: Composition, Structure, Ecology, and Evolution of Six Cenozoic Deep-Water Mollusk Communities Author(s): Carole S. Hickman Source: Journal of Paleontology, Vol. 58, No. 5 (Sep., 1984), pp. 1215-1234 Published by: SEPM Society for Sedimentary Geology Stable URL: https://www.jstor.org/stable/1304849

Edited August 9 by OregonFossil