the tatter Posted December 17, 2011 Share Posted December 17, 2011 Hi, this appears to be a bryozoan with a stem, and holdfast. This is another view Another view This is the rock, with a small bryozoa in the top left corner, another below the stem, and lots of crinoid stem pieces. Discovery consists of seeing what everybody has seen, and thinking what nobody has thought. Albert Szent-Gyorgyi Link to comment Share on other sites More sharing options...
Indy Posted December 17, 2011 Share Posted December 17, 2011 I'll break the ice I'm not a bryozoan expert, however, stem and holdfasts are terms that I associate more with crinoid than bryozoan. With bryozoan I'm more familiar with the terms "attachment or support structures" Interesting...since I never used these terms describing features of bryozoan I did a quick search and found (to my interest) references to "bryozoan holdfasts" Search Results (bryozoan holdfasts): Click Here Search Results - singular - (bryozoan holdfast): Click Here Flash from the Past (Show Us Your Fossils)MAPS Fossil Show Link to comment Share on other sites More sharing options...
the tatter Posted December 17, 2011 Author Share Posted December 17, 2011 Thanks, Indy. It just looked so much like the pictures of the crinoid parts, that I used those terms. I still have to find any that belonged to crinoids. Until I found this I thought I was just in a paleozoic "midden" . LOL Discovery consists of seeing what everybody has seen, and thinking what nobody has thought. Albert Szent-Gyorgyi Link to comment Share on other sites More sharing options...
Indy Posted December 18, 2011 Share Posted December 18, 2011 There are several different fossil fragments on the matrix, including crinoid. It is difficult from the pictures to see if what appears to be an association with the lacy bryozoan is in fact a crinoid fragment (for example). Often when an unrelated fragment is touching another fossil in the matrix... The illusion is the fragment is a part of the fossil of interest...In this case, the lacy bryozoan. You have the fossil in hand and best to see if what appears to be an attachment area is actually an unrelated fossil on the matrix. Take a close look, under magnification with this possibility in mind, and let us know what you see Flash from the Past (Show Us Your Fossils)MAPS Fossil Show Link to comment Share on other sites More sharing options...
cgodwin37 Posted December 18, 2011 Share Posted December 18, 2011 It almost looks like there is a brach laying underneath the bryozoan. But the way it radiates away from the "holdfast" is interesting. Link to comment Share on other sites More sharing options...
the tatter Posted December 18, 2011 Author Share Posted December 18, 2011 It almost looks like there is a brach laying underneath the bryozoan. But the way it radiates away from the "holdfast" is interesting. Yes, the base part is lying in a brac, which is in another brac. There is a lot going on in the piece, and I don't do much prep, as I don't know much yet about these, and don't want to destroy something just because I do not recognize it now. Discovery consists of seeing what everybody has seen, and thinking what nobody has thought. Albert Szent-Gyorgyi Link to comment Share on other sites More sharing options...
the tatter Posted December 18, 2011 Author Share Posted December 18, 2011 There are several different fossil fragments on the matrix, including crinoid. It is difficult from the pictures to see if what appears to be an association with the lacy bryozoan is in fact a crinoid fragment (for example). Often when an unrelated fragment is touching another fossil in the matrix... The illusion is the fragment is a part of the fossil of interest...In this case, the lacy bryozoan. You have the fossil in hand and best to see if what appears to be an attachment area is actually an unrelated fossil on the matrix. Take a close look, under magnification with this possibility in mind, and let us know what you see I have a 10x hand lens, and can see the three sections of the base part, and the bryo does seem to radiate from it. I think I need to wait for another sunny warm day and try to get a really clear photo. Picture 2 looks much clearer in my photo editor than on the site. Discovery consists of seeing what everybody has seen, and thinking what nobody has thought. Albert Szent-Gyorgyi Link to comment Share on other sites More sharing options...
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