old bones Posted July 12, 2015 Share Posted July 12, 2015 This unusual specimen was found in the latest batch of Sacha's Peace River matrix. It is the only one like it in 2 gallons of matrix. The way it seems to originate around a grain of sand puts me in mind of the bryozoa Schizorthosecos sp., but the texture is all wrong. Any ideas? Link to comment Share on other sites More sharing options...
Herb Posted July 12, 2015 Share Posted July 12, 2015 looks like a phosphate nodule to me "Absence of evidence is not evidence of absence"_ Carl Sagen No trees were killed in this posting......however, many innocent electrons were diverted from where they originally intended to go. " I think, therefore I collect fossils." _ Me "When you have eliminated the impossible, whatever remains, however improbable, must be the truth."__S. Holmes "can't we all just get along?" Jack Nicholson from Mars Attacks Link to comment Share on other sites More sharing options...
GeschWhat Posted July 13, 2015 Share Posted July 13, 2015 Very interesting! The side view reminds me of the surface texture I have found on many spiral marine coprolites from the Eagle Ford Formation. Obviously, yours is on a much smaller scale. I have attached a couple photos taken at 20X magnification (measures approx. 1cm across the field of view). I agree with Auspex, they do look phosphatic. What ever it is, it is very cool! What a fun find! Lori www.areallycrappystory.com/fossils www.facebook.com/fossilpoo Link to comment Share on other sites More sharing options...
DPS Ammonite Posted July 13, 2015 Share Posted July 13, 2015 Is it about 7 in hardness? If so it might be a "desert rose" of chalcedony. My goal is to leave no stone or fossil unturned. See my Arizona Paleontology Guide link The best single resource for Arizona paleontology anywhere. Link to comment Share on other sites More sharing options...
abyssunder Posted July 13, 2015 Share Posted July 13, 2015 Beekite, in my opinion. https://www.google.com/search?q=beekite+rings&biw=1360&bih=612&tbm=isch&tbo=u&source=univ&sa=X&ei=e3qjVaSFGIfR7QaGobbgCQ&ved=0CDkQsAQ#imgrc=_ " 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 More sharing options...
old bones Posted July 15, 2015 Author Share Posted July 15, 2015 I'm late responding to this, but thanks to all that gave an opinion. abyssunder, I like your suggestion. My item very much resembles the images in your link. It's the first time I've found anything like it. I do like the patterns on beekite. Link to comment Share on other sites More sharing options...
Plax Posted July 15, 2015 Share Posted July 15, 2015 I was going to say aglomerating type forams before I saw abyssunder's link, am still on the fence though if those are mm scale Link to comment Share on other sites More sharing options...
JohnJ Posted July 15, 2015 Share Posted July 15, 2015 This unusual specimen was found in the latest batch of Sacha's Peace River matrix. It is the only one like it in 2 gallons of matrix. The way it seems to originate around a grain of sand puts me in mind of the bryozoa Schizorthosecos sp., but the texture is all wrong. Any ideas? PR2-poached-eggs.jpg Very nice image, Julianna; especially given the size. The human mind has the ability to believe anything is true. - JJ Link to comment Share on other sites More sharing options...
old bones Posted July 16, 2015 Author Share Posted July 16, 2015 I was going to say aglomerating type forams before I saw abyssunder's link, am still on the fence though if those are mm scale Yes, those are mm. Did you have a particular species in mind? Very nice image, Julianna; especially given the size. Thank you JohnJ. Link to comment Share on other sites More sharing options...
DPS Ammonite Posted July 16, 2015 Share Posted July 16, 2015 Beekites are a form of chalcedony as are Desert Roses. Silica in near surface groundwater creates these small rosettes (including the size range of yours) that form on and replace the carbonates of fossils. Silica replaces fossils in Florida. Search for photos of the fossil coral from Tampa Bay, Florida that are replaced by bubbly chalcedony. See pictures of Beekite that replaces fossils possibly from Florida: http://www.thefossilforum.com/index.php?/topic/23604-what-is-the-true-name-of-these/page-2 Do some simple tests on your samples. See if they fizz in dilute HCl. I'll bet that they are not calcareous and will not fizz. Find out their hardness. I'll bet that they are about a 7 and will scratch Florida limestone. Another clue... they look waxy and translucent in places... which are qualities of chalcedony and not forams. If you come to the Southwest, you can collect giant versions of these, chalcedony Desert Roses that are found in silica rich volcanic rocks. My goal is to leave no stone or fossil unturned. See my Arizona Paleontology Guide link The best single resource for Arizona paleontology anywhere. Link to comment Share on other sites More sharing options...
digit Posted July 16, 2015 Share Posted July 16, 2015 Beekites--something new I've learned today. Came across this interesting page following the link above from abyssunder: http://www2.newark.ohio-state.edu/facultystaff/personal/jstjohn/Documents/Cool-fossils/Replacement.htm A useful page with information (and nice photos) explaining the different forms of replacement preservation in fossils--and with large enough print that I don't even need my glasses to read it. Cheers. -Ken Link to comment Share on other sites More sharing options...
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