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Darwin and Wallace

Mystery fossil (dinosaur? Cretaceous?)

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Darwin and Wallace

Hey all,

 

Can anyone help me ID this fossil? It was found at an antique store with no information. Its density and coloration really reminds me of something from out west, like Hell Creek or Lance Creek. There's also a a semi-circle pattern of holes towards one end that reminds me of a crocodile's bite. Any thoughts on the possible ID or if its something besides a croc bite?

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fifbrindacier

Hi, how do you feel it in hand, heavy or light ?

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JohnBrewer

If that’s from He’ll Creek I’d be happy. @jpc @LordTrilobite

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Rockwood

Hell Creek was a flood plain adjacent to the Western Interior Seaway wasn't it ? Could these holes be the work of bivalves ?

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Darwin and Wallace

@Rockwood, I wouldn't doubt it. Considering I can't narrow down a dinosaur (though still possible I suppose) for this bone, I'm wondering if it may be from a marine animal.

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fifbrindacier

Im jealous, i would be so glad to find such a bone. The only bone i found while fossil Hunting was a jaw and some teeth from a modern rodent.:envy:

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Rockwood
33 minutes ago, Darwin and Wallace said:

@Rockwood, I wouldn't doubt it. Considering I can't narrow down a dinosaur (though still possible I suppose) for this bone, I'm wondering if it may be from a marine animal.

It would pass for pachyostic, wouldn't it ?

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Darwin and Wallace
3 minutes ago, Rockwood said:

It would pass for pachyostic, wouldn't it ?

I suppose it could. To me it seems just as dense as any other fossil bone from the region, so I'm not sure I could tell. Perhaps its evident in one of the images that shows the exposed osteons?

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Rockwood
19 minutes ago, Darwin and Wallace said:

Perhaps its evident in one of the images that shows the exposed osteons?

I'm not sure we have a section that would be that indicative. My thought springs from expectation that the area to the lower left in the last photo would be hollowing instead of more dense in a land animal. Could be a stretch all right.

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jpc

Hey Dude-

The preservation sure looks Lancian.  But I am having a heckuva time IDing what bone it could be.  

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Darwin and Wallace
1 hour ago, jpc said:

Hey Dude-

The preservation sure looks Lancian.  But I am having a heckuva time IDing what bone it could be.  

Yeah I've had the same reaction by other experts too. Very strange. Think it could be marine?

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M Harvey

Scapula (A, B) and humerus (C, D) of Lemmysuchus obtusidens (Andrews, 1909) comb. nov., NHMUK PV R 3168, holotype. Scapula in (A) lateral and (B) medial views; humerus in medial (C) and lateral (D) views. Refer to the main text for the abbreviations list. Scale bar: 5 cm. 

 

 

It looks like a scapula because of the way it flares at the lower end.  This is picture of  a  Teleosauridae scapula (A and B).  Not an exact match but convey's the idea.  I agree that the holes are borings and not teeth marks.

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The Amateur Paleontologist

I'm definitely leaning towards some sort of dinosaurian limb bone..

-Christian

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Sauroniops

@Darwin and Wallace on the second picture (near upper right corner, left side of the bone), there seems to be a big "hole"/more hollow section by the end of the bone. Can you get some more photos of that? And perhaps some pictures taken directly from the side, above, in front and below? 

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Max-fossils
On 12/7/2018 at 8:51 PM, fifbrindacier said:

Im jealous, i would be so glad to find such a bone. The only bone i found while fossil Hunting was a jaw and some teeth from a modern rodent.:envy:

Come to the Netherlands one day and I will take you to the Zandmotor. Plenty of bone there! (no dinosaurs tho :P)

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abyssunder

If the substrate is considered to be lithified, the circular - to subcircular borings might be considered pholad borings, otherwise not.
The other ones, in the picture below, might be attachment scars or encrustation marks.

 

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In my thinking, the specimen may came from saltwater.

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