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BobWill

Dotted line on a burrow? from TX Goodland Fm

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BobWill

I collected with @ rwise in the Goodland Limestone, Lower Cretaceous of Cooke County Texas today.

 

I found this semi-circular fossil that may be a burrow.

5c85cdbe8a861_Picture091.jpg.fb054966ad583e619a1a00acec7b923d.jpg

 

 

Looking closer at the large end there was a dotted line, lower left.

5c85ce07bee51_Picture083.jpg.ee4251dd49b96e404f3da06c2bf2c103.jpg

 

 

Closer...

5c85ce34dbbc8_Picture085.jpg.3c9eadcf0c42f74890eae55a2bb124e4.jpg

 

 

Closer...

5c85ce62a3a53_Picture086.jpg.8ffad9f0046de17bda41017626fe9fd7.jpg

 

 

Closer...

5c85ce9a710fc_Picture087.jpg.dc17849fd51fe3fc89963f7dd1396f6b.jpg

 

That's a mm scale and this is the best my camera will do close-in...

5c85ceea74a20_Picture088.jpg.c073048775adb55a4332f86becb57340.jpg

 

Any ideas?

 

 

 

 

 

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Rockwood

Looks for all the world like a lobstah antenna.

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Rockwood

At that scale, come to think of it, maybe we need to summons coprolite help ?

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caldigger

Shrimp tend to be small.

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Rockwood

@Carl Did you notice this one ?

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Carl
23 hours ago, Rockwood said:

@Carl Did you notice this one ?

I did but I have no worthwhile thoughts

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BobWill

Of course some posters on Facebook wanted the dots to be vertebrae and I won't declare them wrong yet, but another suggestion was bivalve teeth. I will try to remove some matrix and get a better close-up to post here soon.

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abyssunder

Bob, are you sure that the semi-circular fossil is a burrow?

Somehow it reminds me of caprinid rudists.

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Al Dente

I’ve seen Paleozoic rocks with fenestrate bryozoans that look like this. A break across the bryozoan leaves alternating fossil and matrix filled hole.

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BobWill
1 hour ago, abyssunder said:

Bob, are you sure that the semi-circular fossil is a burrow?

Somehow it reminds me of caprinid rudists.

I'm not sure but I did forget to mention that it has a round cross-sectional profile. The central portion looks like it is just matrix but I could be wrong about that.

WIN_20190312_18_05_06_Pro.jpg.ba496b072ae2702fc103d46647567513.jpg

 

 

 

22 minutes ago, Al Dente said:

I’ve seen Paleozoic rocks with fenestrate bryozoans that look like this. A break across the bryozoan leaves alternating fossil and matrix filled hole.

That might work. Were there fenestrate bryozoans in the Creatceous?

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BobWill

I've decided I need to find someone else to try to remove some of the matrix from this and it probably needs consolidation too. I got slightly better close-ups though and will try to get something even better soon.

 

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5c89b964a8cd8_Picture093.jpg.8b2d98d4ce734e0be10ef828e4f42070.jpg

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