BuddingPaleo Posted August 25, 2018 Share Posted August 25, 2018 Is there enough of this guy for anyone to guess at an ID? Both valves are present, the side with the (I think...) plicatula gibbosa stuck to it is barely there, and heavily, heavily worn, but present. I've had it for quite a while, haven't found a match for it yet, but I also have no clue how much might be missing. I'm hoping the severe shelf on it will be enough for someone. Sw Fl, pliocene. Any help appreciated! Link to comment Share on other sites More sharing options...
Fossildude19 Posted August 25, 2018 Share Posted August 25, 2018 @MikeR @Coco Tim - VETERAN SHALE SPLITTER VFOTM --- APRIL - 2015 __________________________________________________ "In every walk with nature one receives far more than he seeks." John Muir ~ ~ ~ ~ ><))))( *> About Me Link to comment Share on other sites More sharing options...
Coco Posted August 25, 2018 Share Posted August 25, 2018 Hi, Oyster ? Coco ---------------------- OUTIL POUR MESURER VOS FOSSILES : ici Ma bibliothèque PDF 1 (Poissons et sélaciens récents & fossiles) : ici Ma bibliothèque PDF 2 (Animaux vivants - sans poissons ni sélaciens) : ici Mâchoires sélaciennes récentes : ici Hétérodontiques et sélaciens : ici Oeufs sélaciens récents : ici Otolithes de poissons récents ! ici Un Greg... Link to comment Share on other sites More sharing options...
BuddingPaleo Posted August 25, 2018 Author Share Posted August 25, 2018 I think it is an oyster. But it doesn't look much like any I can find. I was hoping its shape was enough for someone to make a guess at what kind. I don't have any others that really resemble it either. Well, one maybe, if I stretch my eyes. Lol Link to comment Share on other sites More sharing options...
Bobby Rico Posted August 25, 2018 Share Posted August 25, 2018 Maybe our man in Morocco can help. @Tidgy's Dad 1 Link to comment Share on other sites More sharing options...
Tidgy's Dad Posted August 25, 2018 Share Posted August 25, 2018 Very difficult, these oysters, but i'd have a stab at Conradostrea, if pressed. Life's Good! Tortoise Friend. Link to comment Share on other sites More sharing options...
MikeR Posted August 25, 2018 Share Posted August 25, 2018 It is hard to tell from the pictures but I think it might be either Conradostrea sculpturata or Ostrea locklini (Gardner, 1945). Gardner noted that both were similar but C. sculpturata has twice as many plications. Yours appears to have the distinctive curve of O. locklini but more plications than the image on the Neogene Atlas LINK. Cleaned with better lighting/contrast my help with the id. Mike 3 "A problem solved is a problem caused"--Karl Pilkington "I was dead for millions of years before I was born and it never inconvenienced me a bit." -- Mark Twain Link to comment Share on other sites More sharing options...
BuddingPaleo Posted August 26, 2018 Author Share Posted August 26, 2018 Thanks for the input guys! Learned some new stuff again. I have examples of undulostrea locklini and conradostrea. Took side by sides for comparison. I got some better pics of it as well. I know they all need cleaned better, if anyone has suggestions, please, I'd love it! It's always that last thin layer of crud simply refuses to leave. Lol Link to comment Share on other sites More sharing options...
Plantguy Posted August 26, 2018 Share Posted August 26, 2018 Glad to see more pics of what you are finding. I probably already mentioned I raised/waved the white flag with trying to ID oysters awhile back due to their variability and my lack of knowledge...having said that in your 3rd photo the larger specimen on the right with a ribbed/spiny worn look to it has a Hyotissa feel for me but I defer to the experts...Here's a pic of 3 specimens with a Hyotissa on the left and a Spondylus on the right. Regards, Chris 1 Link to comment Share on other sites More sharing options...
BuddingPaleo Posted August 26, 2018 Author Share Posted August 26, 2018 Yes, I do recall the flag. Lol Here's my thought train on why I had removed it from my other hyotissa, I'm positive it's a rookie thing to do, but I'm a rookie so I'll enjoy making mistakes! Lol anyway the other hyotissa (that I was cozy enough to call so, are all so round. This guy looks like a bear paw. Originally I had him in with them, but started seeing a lot of conradostrea online (always dangerous) that more closely resemble it. Plus the muscle scar seemed higher up and the hinge too narrow. But oysters are jerks, and looking at yours, it could be hyotissa. They've conned me into an unhealthy relationship. I can't quit em! About the original guy, could it be hyotissa semiplana? Link to comment Share on other sites More sharing options...
Plantguy Posted August 26, 2018 Share Posted August 26, 2018 There are different Hyotissas and H.Haitensis is one that shows up commonly in the Tamiami and some other other Mio/Plio/Pleistocene formations aroundhere and I unfortunately dont recall the others..My memory is gone and I'm not familiar with H. semiplana but Mike might be able to rule it in/out. I dont see a scale in your photos so maybe I'm presuming a larger size..How long is that guy? I'm not smart enough to try to rule out your logic and the Conradostrea suggestion There are also the Plicatula gibossa and Plicatula hunterae out there to possibly consider I guess depending on size since you mention paw shapes but they are significantly smaller.... P. hunterae is the bigger one.http://neogeneatlas.net/species/plicatula-hunterae/ P. gibbosa is the smaller one: http://www.nmr-pics.nl/Plicatulidae/album/slides/PLIOCENE-TAMIAMI FORMATION Plicatula gibbosa.html This photo below is a mixed pile and illustrates my perplexities...Lots of smaller/possibly similar adult?/juvenile forms. I believe the bit larger P. hunterae are the separate specimens below the cardboard tray and pile.... Hoping some others might chime in and help you...I think I'm only muddying the waters and not going thru standard procedures where a physical description is noted/captured for each specimen and those characteristics are compared to the written description and photos of the proposed species/docs for the formation. You may need to do some more cleaning on some of them and show both sides of the valves. I'm going back out to cut more grass! LOL Good luck! Regards, Chris 1 Link to comment Share on other sites More sharing options...
BuddingPaleo Posted August 28, 2018 Author Share Posted August 28, 2018 I do have quite a few Plicatula, there's half of one stuck to the side of my original guy I posted about, too. Lol I only recently identified them. I've got them all together awaiting a spa day. Thanks for all the help, once again! My regards to your lawn. (I'm braindead, meant to say you were correct about guessing a larger size.) Link to comment Share on other sites More sharing options...
Plantguy Posted August 29, 2018 Share Posted August 29, 2018 Hey Mike if you get the minute..can you nail the ID for this last one? thank you sir! @Miker Regards, Chris Link to comment Share on other sites More sharing options...
Bronzviking Posted September 7, 2018 Share Posted September 7, 2018 The last picture resembles the Ostrea is a genus of edible oysters, marine bivalve mollusks in the family Ostreidae, the oysters. What do you think Paleo? Lumpy and bumpy, Lol. Link to comment Share on other sites More sharing options...
Bronzviking Posted September 7, 2018 Share Posted September 7, 2018 I might have found the species in my fossil book. Ostrea Tamiamiensis. 65mm long. Both valves similarly sculptured with strong plicate (folded, crumpled, or corrugated) ribs. Shell cavity shallow. Collected in the Tamiami Formation. Miocene. This form may have survived into the Pliocene Epoch before becoming extinct. Link to comment Share on other sites More sharing options...
BuddingPaleo Posted September 7, 2018 Author Share Posted September 7, 2018 I do think it's in the Ostrea genus. Can't find tamiamiensis at the moment, but I'll look into it! Thanks Link to comment Share on other sites More sharing options...
MikeR Posted September 8, 2018 Share Posted September 8, 2018 On 8/26/2018 at 11:24 AM, Plantguy said: Glad to see more pics of what you are finding. I probably already mentioned I raised/waved the white flag with trying to ID oysters awhile back due to their variability and my lack of knowledge...having said that in your 3rd photo the larger specimen on the right with a ribbed/spiny worn look to it has a Hyotissa feel for me but I defer to the experts...Here's a pic of 3 specimens with a Hyotissa on the left and a Spondylus on the right. Regards, Chris Hi Chris The middle oyster is Ostrea ravenelina Tuomey & Holmes, 1855. An index species for the Upper Pliocene that I have also found in the Duplin and Yorktown Formations on the Atlantic Coastal Plain. I believe the large frilly oysters which are found from Virginia to Florida and Miocene to Pliocene are now referred to as Mansfieldostrea although I could not find online who published the new systematics. Mike 2 "A problem solved is a problem caused"--Karl Pilkington "I was dead for millions of years before I was born and it never inconvenienced me a bit." -- Mark Twain Link to comment Share on other sites More sharing options...
MikeR Posted September 8, 2018 Share Posted September 8, 2018 On 8/27/2018 at 8:29 PM, BuddingPaleo said: I do have quite a few Plicatula, there's half of one stuck to the side of my original guy I posted about, too. Lol I only recently identified them. I've got them all together awaiting a spa day. Thanks for all the help, once again! My regards to your lawn. (I'm braindead, meant to say you were correct about guessing a larger size.) Hyotissa haitensis (Sowerby, 1850). It can be quite variable. 2 "A problem solved is a problem caused"--Karl Pilkington "I was dead for millions of years before I was born and it never inconvenienced me a bit." -- Mark Twain Link to comment Share on other sites More sharing options...
MikeR Posted September 8, 2018 Share Posted September 8, 2018 15 hours ago, Bronzviking said: The last picture resembles the Ostrea is a genus of edible oysters, marine bivalve mollusks in the family Ostreidae, the oysters. What do you think Paleo? Lumpy and bumpy, Lol. Hello Bronzviking This is an interesting shell. Did you find it in Florida? If so which County? Could you take a picture of the other side? It could also be Mansfieldostrea but not sure. Mike 1 "A problem solved is a problem caused"--Karl Pilkington "I was dead for millions of years before I was born and it never inconvenienced me a bit." -- Mark Twain Link to comment Share on other sites More sharing options...
Plantguy Posted September 8, 2018 Share Posted September 8, 2018 6 hours ago, MikeR said: Hi Chris The middle oyster is Ostrea ravenelina Tuomey & Holmes, 1855. An index species for the Upper Pliocene that I have also found in the Duplin and Yorktown Formations on the Atlantic Coastal Plain. I believe the large frilly oysters which are found from Virginia to Florida and Miocene to Pliocene are now referred to as Mansfieldostrea although I could not find online who published the new systematics. Mike Thanks Mike for looking at this thread and sorting thru these for us all!!! My finds are all surface finds from APAC Sarasota from several years ago now. I beg forgiveness in my picture for including the Spondylus with the other oysters. I guess techinically it isnt in Ostreidea. Regards, Chris Link to comment Share on other sites More sharing options...
BuddingPaleo Posted September 8, 2018 Author Share Posted September 8, 2018 Thank you very much for the info! Link to comment Share on other sites More sharing options...
Bronzviking Posted September 8, 2018 Share Posted September 8, 2018 Scanned picture of Ostrea Tamiamiensis from my fossil book. It looks similar but not big like yours. @MikeR, I don't have that shell above in the post, I found it on google images after I found this one in my book. Link to comment Share on other sites More sharing options...
Bronzviking Posted September 8, 2018 Share Posted September 8, 2018 Here's another possibility I think someone had mentioned earlier. Plicatula Hunterae. Link to comment Share on other sites More sharing options...
MikeR Posted September 11, 2018 Share Posted September 11, 2018 On 9/8/2018 at 5:08 PM, Bronzviking said: Scanned picture of Ostrea Tamiamiensis from my fossil book. It looks similar but not big like yours. @MikeR, I don't have that shell above in the post, I found it on google images after I found this one in my book. Ostrea tamiamiensis is a synonym of Hyotissa haitensis. LINK "A problem solved is a problem caused"--Karl Pilkington "I was dead for millions of years before I was born and it never inconvenienced me a bit." -- Mark Twain Link to comment Share on other sites More sharing options...
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