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Microvertebrate Remains From Coniacian-Santonian Of Lonzée


Astera

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Hi

Since I came to study in Gembloux, I wanted to know what kind of fossil I could find in the area. After a lot of book research, I discovered that a late cretaceous deposit is present about 5km from where I live: "La glauconie de Lonzée", coniacian/santonian.

Of course it was harder to find it on the field...I only manage to find few blocks on a stack near a construction site.

A few things came out of them: a very worn and small shark tooth, a piece of a belemnite, a fragment of a radiole.... and these remains, fish, I guess.

Beside the round tooth, it's difficult to identify what they are (I don't even think about naming species)

Here we go! I know the pix are not very good but I wanna share these finds with you guys ;)

Edit: The scale is in millimeter so the lengh of the paper is 5mm

Astera

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post-16372-0-35771100-1421075432_thumb.jpg

Edited by Astera
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Fish fragments, scale, jaw, not sure and ribs. And of course the tooth. I can't work out the species, too fragmented for me.

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Thanks a lot Toagan :)

After (re)looking at the pictures, I suspect the right fragment from the 4th and 5th pix to be a tooth. I made some more pictures of it, what do you think?

Astera

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The longitudinal striations in the middle picture make it look a little like a hybodont shark fin spine. From a quick google search it appears that 'Hybodus' can be found in these deposits.

Edited by quagga
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  • 1 month later...

Hello Astera.

Nice first finds….

These teeth comes from Lonzee. ( "Polyacrodus" brabanticus ). Maybe "Hybodus" because Polyacrodus is no more à valid name. I live in Gembloux and maybe I can help you.

-Contacte moi MP.

 

 

Phil

Edited by JohnJ
removed broken photo links
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Ouah, grandblanc. Vos photos sont superbes. How do you take such excellent photos of such small fossils? Photostacking?

Edited by jpc
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The oval tooth in post #3 looks to be from an Anomoedus phaseolus.

It's hard to remember why you drained the swamp when your surrounded by alligators.

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Ouah, grandblanc. Vos photos sont superbes. How do you take such excellent photos of such small fossils? Photostacking?

Thanks jpc for your comment. Yes, photostacking, and to gain magnification, I use stacked lenses.

But these teeth are not so small, have a look at this little Paleocene beauty from Belgium. ( Sorry Astera for this Cenozoic pollution in your topic :wub: )

775060SelHemiscylliumnew.jpg

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( Sorry Astera for this Cenozoic pollution in your topic :wub: )

Such a beauty make me forgive anything ^_^

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The oval tooth in post #3 looks to be from an Anomoedus phaseolus.

Thanks Squali. May I ask on what you relied on to identify the specie?

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Basically the size and shape of the tooth. The Cretaceous age is the same here in New Jersey where I have found a jaw plate with 7 teeth and many other isolated 'bean' teeth. It may be more appropriate to call it a Pycnodonte if you like.

It's hard to remember why you drained the swamp when your surrounded by alligators.

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