hndmarshall Posted February 12, 2019 Share Posted February 12, 2019 first item first three photos second item next three I can see they are not the same type but what are they? found in gravel load west of Houston Texas from Brazos River Link to comment Share on other sites More sharing options...
Fossildude19 Posted February 12, 2019 Share Posted February 12, 2019 Sorry, but I'm not seeing any symmetry with these pieces. 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...
Uncle Siphuncle Posted February 12, 2019 Share Posted February 12, 2019 As Tim said, blastoids will exhibit pentameral symmetry which is not expressed in these finds, but I see enough gross similarities to see that you are searching with a discriminating eye. FYI, blastoids are exceedingly rare in TX and would be most likely in Carboniferous strata 300+/- miles to your northwest. Grüße, Daniel A. Wöhr aus Südtexas "To the motivated go the spoils." Link to comment Share on other sites More sharing options...
Plax Posted February 12, 2019 Share Posted February 12, 2019 might possibly be a well worn "chertified" rudist. Your local folks will be able to say it that is a possibility. I'm just guessing. Link to comment Share on other sites More sharing options...
howard_l Posted February 15, 2019 Share Posted February 15, 2019 they could be geodized that has altered the structure Howard_L http://triloman.wix.com/kentucky-fossils Link to comment Share on other sites More sharing options...
Zenmaster6 Posted February 15, 2019 Share Posted February 15, 2019 Looks like a Fossilized Rudist or type of singular coral. While Rudists usually have flat tops this has a rounded more Blastoid appearance. If you only showed me the shadow, I would think it was a Blastoid but the lack of symmetry that FossilDude19 pointed out, makes it unlikely. I would think some kind of coral. Try putting vinegar on it and seeing if it fizzes. If so, then its definitely calcium carbonate, the main composition of corals and shell bearing life. Link to comment Share on other sites More sharing options...
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