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Please Help to ID fossil bone


Tanit

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Here is a fossil bone that I wish you would help me to identify.

Origin: Madagascar

Length: 12 cm

Width: 9 cm

Tickness: 2.5 - 3.5 cm

Thank you for your help

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post-20048-0-70121600-1447172600_thumb.png

post-20048-0-94961800-1447172632_thumb.png

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This is difficult...there are no strong diagnostic features.

"There has been an alarming increase in the number of things I know nothing about." - Ashleigh Ellwood Brilliant

“Try to learn something about everything and everything about something.” - Thomas Henry Huxley

>Paleontology is an evolving science.

>May your wonders never cease!

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Is the skull of a bird or a reptile ?

Skull? I do not see anything skull-like in these images.

"There has been an alarming increase in the number of things I know nothing about." - Ashleigh Ellwood Brilliant

“Try to learn something about everything and everything about something.” - Thomas Henry Huxley

>Paleontology is an evolving science.

>May your wonders never cease!

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Skull? I do not see anything skull-like in these images.

For me, who is not a specialist , photo 1: skull and beak , photo 2: the palatal vault , photo 4 and 5: the orbits of the eyes

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These are suggestive shapes, at best. There are no details that a skull would show.

For one thing, a skull is composed of several fused bones, and there is not even a hint of this.

"There has been an alarming increase in the number of things I know nothing about." - Ashleigh Ellwood Brilliant

“Try to learn something about everything and everything about something.” - Thomas Henry Huxley

>Paleontology is an evolving science.

>May your wonders never cease!

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This one certainly looks like bone, but I don't think there is enough to ID it. When wefind thingslike this we jokingly call them 'chunkosaurs'.

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This one certainly looks like bone, but I don't think there is enough to ID it. When wefind thingslike this we jokingly call them 'chunkosaurs'.

it's amazing. it's a complete piece in perfect condition , I do not understand why we could not identify it.

Edited by Tanit
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This item is far from being in perfect condition, its a partial bone, why it cannot be identified. Diagnostic features are needed to help in identification which this lacks. It's thickness may lead one to say it might be from a limb bone.

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It seems to have a certain symmetry though. Especially that concave side.

Since it's very fragmentary it might be almost impossible to say what it is. But right now I wouldn't completely rule out the possibility of a skull piece. Though there don't appear to be any obvious sutures. Interesting piece.

Olof Moleman AKA Lord Trilobite

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it's amazing. it's a complete piece in perfect condition , I do not understand why we could not identify it.

This is not correct; it is a heavily weathered fragment. How else would the cortical bone be missing, exposing the cancellous bone?

"There has been an alarming increase in the number of things I know nothing about." - Ashleigh Ellwood Brilliant

“Try to learn something about everything and everything about something.” - Thomas Henry Huxley

>Paleontology is an evolving science.

>May your wonders never cease!

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Blood doesn't stay red for very long. And it doesn't fossilise. When there's red on rocks or fossils it's generally an indication that there's iron in it. So what you're seeing is basically "rust".

Olof Moleman AKA Lord Trilobite

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