Gatorman Posted January 21, 2008 Share Posted January 21, 2008 Heres some oysters I found, JKfoam had Identified these for me before but i lost the id. So umm JK can ya tell me what these are again? Link to comment Share on other sites More sharing options...
kauffy Posted January 21, 2008 Share Posted January 21, 2008 Cool little cluster Anson! Almost looks like there not even fossilised :lol: :Thumbs-up: oh and im beggining to recognise Cris's hand in the background of all your photos....are you sure your not just swiping his pictures as your own? HAHAHAHAHAHA just kidding Nice fossil "Turn the fear of the unknown into the excitment of possibility!"We dont stop playing because we grow old, we grow old because we stop playing. Link to comment Share on other sites More sharing options...
Gatorman Posted January 21, 2008 Author Share Posted January 21, 2008 Thats my hand thank you, Cris has a big freckle on his hand and his is thinner than mine. Link to comment Share on other sites More sharing options...
kauffy Posted January 21, 2008 Share Posted January 21, 2008 hahahahaha right sorry.....my mistake :lol: "Turn the fear of the unknown into the excitment of possibility!"We dont stop playing because we grow old, we grow old because we stop playing. Link to comment Share on other sites More sharing options...
jkfoam Posted January 21, 2008 Share Posted January 21, 2008 Anson, Wow, my memory must be going. I don't remember ID'ing that oyster for you, but I think it could be ID'ed as Ostrea sp. I hope that helps. I can't be more specific woth out more information. JKFoam The Eocene is my favorite Link to comment Share on other sites More sharing options...
Gatorman Posted January 21, 2008 Author Share Posted January 21, 2008 Well it came from some lime rock exposure on the Withlacoochee River the lower end just before it dumps into the Suwannee River, I'm not sure of the formation so I don't know the age. Link to comment Share on other sites More sharing options...
PrehistoricFlorida Posted January 21, 2008 Share Posted January 21, 2008 Should be Eocene. www.PrehistoricFlorida.com Link to comment Share on other sites More sharing options...
Gatorman Posted January 21, 2008 Author Share Posted January 21, 2008 According to the state geologic map that area is the Suwannee Limestone and its Oligocene. Link to comment Share on other sites More sharing options...
PrehistoricFlorida Posted January 21, 2008 Share Posted January 21, 2008 Well, I've found rics and isurus praecursor all throughout the Withlacoochie, all the way up into Ga. www.PrehistoricFlorida.com Link to comment Share on other sites More sharing options...
Guest Cris Posted January 21, 2008 Share Posted January 21, 2008 That area is supposed to be Oligocene judging by the Rhyncholampas gouldii echinoids we found along with the oysters. I don't know if Rhyncholampas gouldii is supposed to be Eocene also, or if that river has both Eocene and Oligocene in it... Suwannee Limestone is Oligocene, though. I guess if there's rics and isurus praecursor's, it has to have both Eocene and Oligocene. Link to comment Share on other sites More sharing options...
PrehistoricFlorida Posted January 21, 2008 Share Posted January 21, 2008 I also find Rhyncholampas gouldii in great abundance all throughout the Suwannee, which I believe is supposed to be the Ocala formation which is Eocene. www.PrehistoricFlorida.com Link to comment Share on other sites More sharing options...
Harry Pristis Posted January 22, 2008 Share Posted January 22, 2008 I also find Rhyncholampas gouldii in great abundance all throughout the Suwannee, which I believe is supposed to be the Ocala formation which is Eocene. There are at least three species of Rhyncholampas (Cassidulus) to be found in the Suwannee River and environs. All have a superficial resemblance. Rhyncholampas gouldii is found in the Late Oligocene Suwannee Limestone. Rhyncholampas trojanus (named after Troy Springs on the Suwannee) is found in the Late Eocene Ocala Group Limestone. Rhyncholampas ericsoni is found in the Late Eocene Ocala Group Limestone. Any of these does make a good index fossil for the age of the limestone and the associated fauna; BUT, you need to be able to distinguish between the three. I suggest putting together a reliably-identified comparison collection until your eye is trained to distinguish among the three species. ------------Harry Pristis http://pristis.wix.com/the-demijohn-page What seest thou else In the dark backward and abysm of time? ---Shakespeare, The Tempest Link to comment Share on other sites More sharing options...
PrehistoricFlorida Posted January 22, 2008 Share Posted January 22, 2008 Harry, Can you please post a picture of each of the three species? www.PrehistoricFlorida.com Link to comment Share on other sites More sharing options...
Harry Pristis Posted January 22, 2008 Share Posted January 22, 2008 Harry, Can you please post a picture of each of the three species? Here they are: http://pristis.wix.com/the-demijohn-page What seest thou else In the dark backward and abysm of time? ---Shakespeare, The Tempest Link to comment Share on other sites More sharing options...
PrehistoricFlorida Posted January 23, 2008 Share Posted January 23, 2008 trojanus and gouldii look identical to me... www.PrehistoricFlorida.com Link to comment Share on other sites More sharing options...
Harry Pristis Posted January 23, 2008 Share Posted January 23, 2008 trojanus and gouldii look identical to me... I guess that's why the taxonomists get the big bucks! Here's what C. Wythe Cooke said in 1959 about those two species: Cassidulus trojanus is proportionately longer and narrower than C. gouldii, the peristome is smaller, and the petals are narrower. The illustrations in Cooke's paper, CENOZOIC ECHINOIDS OF EASTERN UNITED STATES are much better than my image. ---------Harry Pristis http://pristis.wix.com/the-demijohn-page What seest thou else In the dark backward and abysm of time? ---Shakespeare, The Tempest Link to comment Share on other sites More sharing options...
jkfoam Posted January 23, 2008 Share Posted January 23, 2008 Harry, A Taxonomist once told me that his boss told him that it was a labor of love. JKFoam The Eocene is my favorite Link to comment Share on other sites More sharing options...
Harry Pristis Posted January 23, 2008 Share Posted January 23, 2008 Harry,A Taxonomist once told me that his boss told him that it was a labor of love. JKFoam That is another urban myth, JKFoam! No one is interested in taxonomy except for the money and glory! ----Harry Pristis :lol: http://pristis.wix.com/the-demijohn-page What seest thou else In the dark backward and abysm of time? ---Shakespeare, The Tempest Link to comment Share on other sites More sharing options...
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