Jump to content

Bone identification please


Chomper

Recommended Posts

Could it be a sponge or a coral? I will leave this one to the experts.

Life started in the ocean. And so did my interest in fossils;).

Link to comment
Share on other sites

It is a piece of chert or flint which does have bits of fossil impressions in it. 

Possibly sponge impressions, yes. 

Image result for sponge in chert

Like this, but often the sponge body erodes away leaving just a mold.  

Life's Good!

Tortoise Friend.

MOTM.png.61350469b02f439fd4d5d77c2c69da85.png.a47e14d65deb3f8b242019b3a81d8160-1.png.60b8b8c07f6fa194511f8b7cfb7cc190.png

Link to comment
Share on other sites

Maybe imprints left in a pebble by gastropods.

 

146AmmoniteandCast.jpg.a5c6f079a0359dc70b0bfa4bcebb95b5.jpg

" We are not separate and independent entities, but like links in a chain, and we could not by any means be what we are without those who went before us and showed us the way. "

Thomas Mann

My Library

Link to comment
Share on other sites

Gastropods are what I am seeing as well. :) 

 

 

 

1web.jpg.f78e668fbd200809586a3a3c86a20cde.jpg

    Tim    -  VETERAN SHALE SPLITTER

   MOTM.png.61350469b02f439fd4d5d77c2c69da85.png      PaleoPartner.png.30c01982e09b0cc0b7d9d6a7a21f56c6.png.a600039856933851eeea617ca3f2d15f.png     Postmaster1.jpg.900efa599049929531fa81981f028e24.jpg    VFOTM.png.f1b09c78bf88298b009b0da14ef44cf0.png  VFOTM  --- APRIL - 2015  

__________________________________________________
"In every walk with nature one receives far more than he seeks."

John Muir ~ ~ ~ ~   ><))))( *>  About Me      

Link to comment
Share on other sites

I'm in agreement with the others. I also see a kind of Hormotoma sp like gastropod imprint there. Good quality images, by the way! :) 

...How to Philosophize with a Hammer

 

 

Link to comment
Share on other sites

7 minutes ago, Chomper said:

I licked it and my tongue stuck. The lick test says bone.

Sorry, but this is not a reliable test. Many rocks will also stick, depends on the porosity of the rock.

Darwin said: " Man sprang from monkeys."

Will Rogers said: " Some of them didn't spring far enough."

 

My Fossil collection - My Mineral collection

My favorite thread on TFF.

 

 

Link to comment
Share on other sites

42 minutes ago, Rockwood said:

Encrusting fenestrate bryozoan Photo 7, just above inches.

That would make it a long distance roller though. 

Link to comment
Share on other sites

1 hour ago, Kane said:

I'm in agreement with the others. I also see a kind of Hormotoma sp like gastropod imprint there. Good quality images, by the way! :) 

Thanks!

 

Link to comment
Share on other sites

53 minutes ago, Rockwood said:

Encrusting fenestrate bryozoan Photo 7, just above inches.

correct

" We are not separate and independent entities, but like links in a chain, and we could not by any means be what we are without those who went before us and showed us the way. "

Thomas Mann

My Library

Link to comment
Share on other sites

Just to fill anyone not familiar with the situation in a bit.

The spot is in an area where deposits are of Neogene age and Fenestrates went extinct in the early Triassic I think.

It almost had to have rolled in the current of the Potomac River from some upstream source.   

Link to comment
Share on other sites

3 hours ago, Rockwood said:

Just to fill anyone not familiar with the situation in a bit.

The spot is in an area where deposits are of Neogene age and Fenestrates went extinct in the early Triassic I think.

It almost had to have rolled in the current of the Potomac River from some upstream source.   

Was the glacier transported material ruled out?

" We are not separate and independent entities, but like links in a chain, and we could not by any means be what we are without those who went before us and showed us the way. "

Thomas Mann

My Library

Link to comment
Share on other sites

5 hours ago, abyssunder said:

Was the glacier transported material ruled out?

I've heard of glacial deposits a bit north of  Washington, D.C., but Virginia ? I sort of doubt.

Link to comment
Share on other sites

I don’t think it was a fenestrate bryozoan. Probably an encrusting bryozoan on a gastropod that left an impression.

Link to comment
Share on other sites

59 minutes ago, Al Dente said:

I don’t think it was a fenestrate bryozoan. Probably an encrusting bryozoan on a gastropod that left an impression.

Agreed. 

I think the scale being in 1/8 inch when we're used to millimeters fooled us.

Link to comment
Share on other sites

12 hours ago, GeschWhat said:

It sticks, really? Chert does not stick. It is possible that it is a coprolite. It could have come to rest on the sea floor (hence the gastropod imprints), and those boring clams do seem to like the calcium phosphate.

 

@Carl

I suppose it could be a coprolite but the stick-test is not absolute - just highly suggestive. It could just as easily be a weathered pebble with invertebrate molds and/or burrows.

Link to comment
Share on other sites

14 hours ago, GeschWhat said:

It sticks, really? Chert does not stick. It is possible that it is a coprolite. It could have come to rest on the sea floor (hence the gastropod imprints), and those boring clams do seem to like the calcium phosphate.

 

@Carl

I think my tongue touched this about nine time, please tell me its not a turd.  

Link to comment
Share on other sites

 

38 minutes ago, Chomper said:

I think my tongue touched this about nine time, please tell me its not a turd.  

 :rofl: Like Carl said, the lick test is not definitive. Not all coprolite/bone sticks. Of course I don't usually go around licking random rocks - just those I think might be coprolite or bone.  So I haven't actually encountered a rock that sticks that has not been one of the two. Here is a recent beauty I picked up at the Tucson Gem Show. It was found in South Carolina. It does not have any cool impressions, but it is riddled with clam borings. The only reason I know for sure mine is a coprolite is the button-like sphincter mark on the end. And yes, it does have good stickage as well. As you can see yours is similar. I am an optimist, so I would label yours as a "possible" coprolite.

Sphicter-small.jpg

Link to comment
Share on other sites

1 hour ago, GeschWhat said:

 

 :rofl: Like Carl said, the lick test is not definitive. Not all coprolite/bone sticks. Of course I don't usually go around licking random rocks - just those I think might be coprolite or bone.  So I haven't actually encountered a rock that sticks that has not been one of the two. Here is a recent beauty I picked up at the Tucson Gem Show. It was found in South Carolina. It does not have any cool impressions, but it is riddled with clam borings. The only reason I know for sure mine is a coprolite is the button-like sphincter mark on the end. And yes, it does have good stickage as well. As you can see yours is similar. I am an optimist, so I would label yours as a "possible" coprolite.

Sphicter-small.jpg

Aw man, I think coprolite might be the answer. Lesson learned, do not lick. 

Link to comment
Share on other sites

Archived

This topic is now archived and is closed to further replies.

×
×
  • Create New...