dries85 Posted March 7 Share Posted March 7 I found this concretion with something inside, looks like half of a nodule with something bone alike. Found it while sifting for Miocene shark teeth in a clay quarry in the Antwerp region in Belgium. I think the gravel i'm sifting is Pleistocene with reworked Miocene as i've found pieces of Mammoth bark in it as well. This piece leaves me clueless tho.. The concretion measures 9cm x 5cm sorry about the poor quality pics, that's the best i can get out of my smartphone... Thx! 1 Link to comment Share on other sites More sharing options...
Fossildude19 Posted March 7 Share Posted March 7 Looks like a fish operculum/preopercular. Link to image post See this image: 3 2 Tim - VETERAN SHALE SPLITTER 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 More sharing options...
Brevicollis Posted March 7 Share Posted March 7 Its just a theory, dont take this to seriously. If shark teeth are known from this formation, then it was once an ocean? And maybe this is a marine mammals bone (fragment?) which a concretion formed around maybe ? I know that this can happen, because i was hunting really often in the Gramer Clay quarry in Denmark, which has the same age and crab and bone concretions are known from there. So maybe it is one. @Boesse is an expert whith marine mammal fossils. Maybe He can Help more. Are good signatures really that important ? Link to comment Share on other sites More sharing options...
Rockwood Posted March 7 Share Posted March 7 Wouldn't the curvature and texture be seen in a turtle humerus? Link to comment Share on other sites More sharing options...
Fossildude19 Posted March 7 Share Posted March 7 10 minutes ago, Rockwood said: Wouldn't the curvature and texture be seen in a turtle humerus? Doesn't look very inflated to me. Looks more flat, and textured more like a fish bone. I don't see any resemblance to a turtle humerus. Tim - VETERAN SHALE SPLITTER 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 More sharing options...
dries85 Posted March 7 Author Share Posted March 7 27 minutes ago, Brevicolis said: Its just a theory, dont take this to seriously. If shark teeth are known from this formation, then it was once an ocean? And maybe this is a marine mammals bone (fragment?) which a concretion formed around maybe ? I know that this can happen, because i was hunting really often in the Gramer Clay quarry in Denmark, which has the same age and crab and bone concretions are known from there. So maybe it is one. @Boesse is an expert whith marine mammal fossils. Maybe He can Help more. The gravel is actually loaded with marine mammal bone, so that would be very likely. First time finding it inside a concretion tho. Link to comment Share on other sites More sharing options...
dries85 Posted March 7 Author Share Posted March 7 41 minutes ago, Fossildude19 said: Looks like a fish operculum/preopercular. Link to image post See this image: I guess Miocene herring it is 😏 thx! Link to comment Share on other sites More sharing options...
jpc Posted March 7 Share Posted March 7 The bone quality looks fishy. I think preopercular is a good guess. Link to comment Share on other sites More sharing options...
rocket Posted March 7 Share Posted March 7 (edited) interesting find, these nodules are really not common, rare one. Preoperculum is my idea, too. Do you plan do glue it together and prep from one side? Would perhaps help to identify the species might be it is reworked material, transported while the ice age from britain. Reminds me to sheppey or more to the boxstones from Suffolk Edited March 7 by rocket Link to comment Share on other sites More sharing options...
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