cthomp50 Posted April 29, 2016 Share Posted April 29, 2016 I picked up this lovely item at a garage sale and have been trying to place it in with an aquatic origin, but I've expanded my thought process to think this may be a calamite... Your thoughts would be appreciated! Link to comment Share on other sites More sharing options...
sseth Posted April 29, 2016 Share Posted April 29, 2016 Looks like you have a section of coral there. _____________________________________ Seth www.fossilshack.com www.americanfossil.com www.fishdig.com Link to comment Share on other sites More sharing options...
JohnJ Posted April 29, 2016 Share Posted April 29, 2016 Durania, or similar colonial rudist. The human mind has the ability to believe anything is true. - JJ Link to comment Share on other sites More sharing options...
cthomp50 Posted April 29, 2016 Author Share Posted April 29, 2016 Perfect! Thank you! Link to comment Share on other sites More sharing options...
DPS Ammonite Posted April 29, 2016 Share Posted April 29, 2016 It is a Cretaceous Durania, a giant organ pipe shaped clam with a small top shell even though it looks like a branching Saguaro cactus. 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...
cthomp50 Posted April 29, 2016 Author Share Posted April 29, 2016 Since I'm on a roll today, could you identify these as well... Found in Grapevine Texas. Link to comment Share on other sites More sharing options...
tmaier Posted April 29, 2016 Share Posted April 29, 2016 1. crinoid stem segment 2. most likely pecten shell (scallop) 3. another crinoid stem segment 4. eroded shell, maybe oyster? Link to comment Share on other sites More sharing options...
Guguita2104 Posted April 29, 2016 Share Posted April 29, 2016 Nice rudist!!! Link to comment Share on other sites More sharing options...
abyssunder Posted April 29, 2016 Share Posted April 29, 2016 I agree about rudist,and also about that it could be Durania! Here is an example (shown in figure 6/d) of a broken transverse section of Durania cornupastoris. In a closer examination there is a portion in which the celluloprismatic mesostructure is nicely visible, like in your specimen. Nice catch, BTW ! " 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...
abyssunder Posted April 30, 2016 Share Posted April 30, 2016 This could be an eroded crinoid calyx basal part, showing the portion of the 5 basal plates in junction with the column : " 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...
doushantuo Posted April 30, 2016 Share Posted April 30, 2016 I'm posting this not because it's groundbreaking in the field of rudist studies,but because the pix are good http://webb.deu.edu.tr/sacitozer/kitaplar/201505261730481.pdf rudist functional morphology: http://www.paleoliste.de/bandel/bandel_1996a.pdf Link to comment Share on other sites More sharing options...
cthomp50 Posted May 3, 2016 Author Share Posted May 3, 2016 Good stuff everyone! Thank you! Link to comment Share on other sites More sharing options...
ynot Posted May 3, 2016 Share Posted May 3, 2016 Picture 4 and 5 in post #6 look barnicle to Me. Tony Darwin said: " Man sprang from monkeys." Will Rogers said: " Some of them didn't spring far enough." My Fossil collection - My Mineral collection My favorite thread on TFF. Link to comment Share on other sites More sharing options...
Herb Posted May 3, 2016 Share Posted May 3, 2016 I'm going with coral also "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...
DPS Ammonite Posted May 4, 2016 Share Posted May 4, 2016 JohnJ is right, the fossils in the first post are all rudists and most likely Durania sp. When I found my first Durania fossils in the Dallas area, my brain told me that these probably were a petrified palm or giant horsetail and certainly not a bivalve. The up close structure of the shell looks a lot like the texture of petrified wood with annual rings. Check out this website which is where I found a photo of a colony of giant organ pipe like rudists: https://ferrebeekeeper.wordpress.com/2011/08/26/rudists/ 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...
doushantuo Posted May 4, 2016 Share Posted May 4, 2016 That' s from FACIES,for sure. For a Gotz or Steuber article,I'm sure might as well post another rudist piece,a GOOD one from pal cubed https://www.researchgate.net/publication/223836949_Rudist_formations_in_mixed_siliciclastic-carbonate_depositional_environments_Upper_Cretaceous_Austria_Stratigraphy_sedimentology_and_models_of_development and: peter skelton: https://www.researchgate.net/publication/222022863_Skelton_P_W_Gili_E_Vicens_E_Obrador_A_-_The_growth_fabric_of_gregarious_rudist_elevators_hippuritids_in_a_Santonian_carbonate_platform_in_the_southern_Central_Pyrenees_Palaeogeography_Palaeoclimatolog SteuberparenrudisteuropaEC12.body (3).pdf Sandersmollusc01pal3rudisbiostromtaph+.pdf Link to comment Share on other sites More sharing options...
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