thair Posted February 20, 2015 Posted February 20, 2015 This is a real odd find at least for me. My son found this a couple days ago at one of or spots but I have not ever found anything like this before in Cen Tex Penn. It is small 1cm and preserved in a type of iron stone. Any ideas??
Herb Posted February 20, 2015 Posted February 20, 2015 very odd "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
Missourian Posted February 20, 2015 Posted February 20, 2015 Could it be a really spiny crinoid calyx, or even one of those 'caps' atop a crinoid anal sac (don't know/forgot the term)? Context is critical.
Auspex Posted February 20, 2015 Posted February 20, 2015 Unless I'm just seeing things: The five-way radial symmetry does suggest an echinoderm. "There has been an alarming increase in the number of things I know nothing about." - Ashleigh Ellwood Brilliant “Try to learn something about everything and everything about something.” - Thomas Henry Huxley >Paleontology is an evolving science. >May your wonders never cease!
thair Posted February 20, 2015 Author Posted February 20, 2015 Unless I'm just seeing things: ~.JPG The five-way radial symmetry does suggest an echinoderm. It does have five-way radial symmetry and my initial thought was echinoderm or a part of one. The location where it was found has many different types of crinoids. Under magnification I can not see plate structures but it may be just preserved in such a way that they are just not obvious.
Missourian Posted February 20, 2015 Posted February 20, 2015 .... it may be just preserved in such a way that they are just not obvious. I have way too much of this in my collection. Context is critical.
thair Posted February 27, 2015 Author Posted February 27, 2015 Anybody else seen anything like this in Penn deposits, Just commented again so it could move up the list.
Auspex Posted February 27, 2015 Posted February 27, 2015 I do think it is from a crinoid, and I keep coming back to the possibility that it is a pathological response to predation. "There has been an alarming increase in the number of things I know nothing about." - Ashleigh Ellwood Brilliant “Try to learn something about everything and everything about something.” - Thomas Henry Huxley >Paleontology is an evolving science. >May your wonders never cease!
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