dmills727 Posted April 26, 2016 Share Posted April 26, 2016 HI All -- had a nice time at Mazon Creek with my son last weekend and would like to learn more about some of the fossils we found. Here's the first. I'm pretty clueless but eager to learn. We were at the Fossil Rock Recreation Area this trip. Thanks! Link to comment Share on other sites More sharing options...
DPS Ammonite Posted April 26, 2016 Share Posted April 26, 2016 It looks like Annularia, a plant. 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...
dmills727 Posted April 26, 2016 Author Share Posted April 26, 2016 Thank you DPS Ammonite. Yes, after poking around the forum a bit more I was reaching the same conclusion. Is it possible to identify to species? Or is there only one species at Mazon Creek of Annularia? Thanks all for your patience! Link to comment Share on other sites More sharing options...
abyssunder Posted April 26, 2016 Share Posted April 26, 2016 Nice specimen!According to William A. Dimichele, Dan S. Chaney, Hans Kerp and Spencer G. Lucas in LATE PENNSYLVANIAN FLORAS IN WESTERN EQUATORIAL PANGEA, CAÑON DEL COBRE, NEW MEXICO " Annularia carinata is characterized by leaves of unequal length, forming ovoid whorls of varying diameter. The individual leaves are spatulate in form and have mucronate tips (these specimens may also be referred to Annularia mucronata; the taxonomy of Annularia is in need of revision). Populations of this species frequently are confused for mixed assemblages of Annularia sphenophylloides (smaller whorls) and Annularia stellata (larger whorls). Each of these latter species has symmetrical whorls formed by leaves of approximately equal length. Leaves of A. sphenophylloides are spatulate and mucronate. Large mucronate, spatulate leaves often have been attributed to A. stellata, but this appears to be incorrect given that the type of A. stellata has lanceolate leaves. " 1 " 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...
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