Fossil I.D. (non-ceph?)

Architeuthoceras

Architeuthis
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I thought this was a cephalopod phragmocone so I took a picture of it. After further review I don't think it is, the septa, and what looked like the siphuncle do not have the right morphology. Anyone seen anything that resembles this, it is probably worn and showing a cross-section. I will be posting it to a paleo list in the near future, but thought I would give the folks on TONMO the first crack at it :biggrin2:

It is in Early Ordovician limestone.

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Clem

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Hmmm.

Wild guesses: it almost looks like the tip of some vertebrate's tail, with ossified tissues running down the midline. Or a jaw with teeth dislodged from its sockets.

Whatever it is, it looks like there's plenty more of it locked in that matrix.

:?:

Clem
 

Architeuthoceras

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Clem, that would be fantastic if it were an Ordovician vertebrate, I think these rocks are a few million years to old for that though. If it is an animal it would have to an invert. I think plants are out too. :shock:
 

cthulhu77

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Hmm...I have seen cone snail shells that have been severely weathered look somewhat like that...how large was the object?
nice Estwing...my favorite too !!!
greg
 

Phil

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Not sure at all Kevin. I thought it may have been a nautiloid too; the only other thing that I can think of that it vaguely resembles is an arm of a starfish.
 

Architeuthoceras

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Those are both some very good critters to ponder :biggrin2:

It was located in the southern House Range, west central Utah, from near the base of the informal light gray ledge forming member of the Ibexian (Lower Ordovician) Fillmore Formation. It is about 3/8" (10mm) wide and 2" (50mm) long.
 
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I think it looks alot like some kind of simple vertebre (scuze my spelling) maybe it was the first vert? It could be anything though maybe even a foot os somekind lol! There is alot of weird stuff out there...
 

Architeuthoceras

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A Graptolite, Phyllograptus sp. from shale beds in the same formation. I dont know if graptolites got crushed in shale like some ammonoids, but most are just thin films like this.
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