Desert_survivor Posted November 28, 2018 Share Posted November 28, 2018 Here is a nice little gastropod cluster on the matrix that was rescued from a construction site along Reynard Way in San Diego. I think they are in the family Naticidae and are possibly Polinices galianor. Anyone have any thoughts? I'd love to nail it down more specifically if possible. Naticidae "Reynard Way" ~3-1.5Mya Pliocene to Early Pleistocene San Diego Formation San Diego County, CA Kingdom: Animalia Phylum: Mollusca Class: Gastropoda -- Subclass: Caenogastropoda Order: Littorinimorpha Family: Naticidae Genus: Favor Polinices? Species: Galianor 7 Link to comment Share on other sites More sharing options...
Tidgy's Dad Posted November 28, 2018 Share Posted November 28, 2018 Rather nice, but couldn't help with the species, I'm afraid. Good on you for taking advantage of the construction site! Life's Good! Tortoise Friend. Link to comment Share on other sites More sharing options...
FossilDAWG Posted November 28, 2018 Share Posted November 28, 2018 @MikeR may be able to help. Don Link to comment Share on other sites More sharing options...
RJB Posted November 28, 2018 Share Posted November 28, 2018 (edited) Yeah, a Naticid for sure. In northern California, Eureka, I use to find lots of these. We had 6 different species up there and I in no way could tell them apart. Once in awhile I would find a giant one of these and the way to tell them apart from the Polinices gastro's is that the umbilicus in the naticids is covered with shell material and the polinices has a hole. We locals just called em 'moonies'. RB Edited November 29, 2018 by RJB wrong information 3 Link to comment Share on other sites More sharing options...
Desert_survivor Posted November 29, 2018 Author Share Posted November 29, 2018 On 11/28/2018 at 5:10 AM, RJB said: Yeah, a Naticid for sure. In northern California, Eureka, I use to find lots of these. We had 6 different species up there and I in no way could tell them apart. Once in awhile I would find a giant one of these and the way to tell them apart from the Polinices gastro's is that the umbilicus in the naticids is covered with shell material and the polinices has a hole. We locals just called em 'moonies'. RB Thats a nice tip! I’d love to see one of the giant ones. I’ll put Eureka on the bucket list. Link to comment Share on other sites More sharing options...
Jeffrey P Posted November 29, 2018 Share Posted November 29, 2018 That a very nice gastropod cluster there. You must be very happy. Congratulations and thanks for sharing. Link to comment Share on other sites More sharing options...
RJB Posted November 30, 2018 Share Posted November 30, 2018 19 hours ago, Desert_survivor said: Thats a nice tip! I’d love to see one of the giant ones. I’ll put Eureka on the bucket list. Scotia Bluffs just south of Eureka. The naticids are easy to find, the polinices are very large but very rare to find. Good luck RB Link to comment Share on other sites More sharing options...
Plantguy Posted December 1, 2018 Share Posted December 1, 2018 On 11/28/2018 at 8:10 AM, RJB said: Yeah, a Naticid for sure. In northern California, Eureka, I use to find lots of these. We had 6 different species up there and I in no way could tell them apart. Once in awhile I would find a giant one of these and the way to tell them apart from the Polinices gastro's is that the umbilicus in the naticids is covered with shell material and the polinices has a hole. We locals just called em 'moonies'. RB RB, i remember the moonies from when I was in norcal...got a chuckle when you mentioned that!... Nice find Desert Survivor! Regards, Chris Link to comment Share on other sites More sharing options...
MikeR Posted December 1, 2018 Share Posted December 1, 2018 On 11/28/2018 at 7:24 AM, FossilDAWG said: @MikeR may be able to help. Don I would need to see the umbilicus. "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...
Desert_survivor Posted December 6, 2018 Author Share Posted December 6, 2018 On 11/30/2018 at 3:54 AM, RJB said: Scotia Bluffs just south of Eureka. The naticids are easy to find, the polinices are very large but very rare to find. Good luck RB Thanks for the tip, RB! Link to comment Share on other sites More sharing options...
Desert_survivor Posted December 6, 2018 Author Share Posted December 6, 2018 On 12/1/2018 at 2:12 PM, MikeR said: I would need to see the umbilicus. Hi MikeR, I am not sure where the umbilicus is on a naticid, but here is an up close shot of a another specimen from the same formation (different location). Does that help? Link to comment Share on other sites More sharing options...
RJB Posted December 6, 2018 Share Posted December 6, 2018 10 hours ago, Desert_survivor said: I am not sure where the umbilicus is on a naticid Think 'belly botton'. RB Link to comment Share on other sites More sharing options...
Desert_survivor Posted December 6, 2018 Author Share Posted December 6, 2018 47 minutes ago, RJB said: Think 'belly botton'. RB Lol, of course, but where is the belly button on a naticid? Do the soft tissues fossilize? Thanks. Link to comment Share on other sites More sharing options...
RJB Posted December 6, 2018 Share Posted December 6, 2018 1 minute ago, Desert_survivor said: Lol, of course, but where is the belly button on a naticid? Do the soft tissues fossilize? Thanks. The umbilicus is covered with shell. You have the spiral 'apex on one side and the belly botton on the other. I will try and get you a picture later on. Ive got a couple of moonies sittin in my garage. RB Link to comment Share on other sites More sharing options...
Desert_survivor Posted December 6, 2018 Author Share Posted December 6, 2018 3 minutes ago, RJB said: The umbilicus is covered with shell. You have the spiral 'apex on one side and the belly botton on the other. I will try and get you a picture later on. Ive got a couple of moonies sittin in my garage. RB Ah! I see. I’ll post a picture of the reverse side when I get home later. Thanks again! Link to comment Share on other sites More sharing options...
RJB Posted December 6, 2018 Share Posted December 6, 2018 4 hours ago, Desert_survivor said: Lol, of course, but where is the belly button on a naticid? Quote this 1 Link to comment Share on other sites More sharing options...
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