MikeR Posted March 1, 2015 Share Posted March 1, 2015 (edited) Hi all I am often asked about references that I use in the identification of the fossil shells that I collect around the Sarasota area. Most of these publications are out of print with outdated systematics. Since a specific monograph of the Pinecrest Member of the Tamiami Formation has never been published I have decided to try to do so at least at an amateur level (non-peer reviewed) as an extension of my Pliocene Project. Over time I hope to have a photo of each species within my collection that should cover the common and in some cases uncommon gastropods that can be found in the Sarasota area. I also most definitely welcome comments as to the accuracy of my identifications as some specie members are very difficult to differentiate. The following link will take you directly to the thumbnail view http://www.thefossilforum.com/index.php?/gallery/album/2218-gastropods-of-the-pinecrest-sand/. First up is a single species from the Order Petellogastropda and the Family Fissurellidae aka key hole limpets from the Order Archaeogastropoda. Enjoy Mike Edited March 1, 2015 by MikeR 7 "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...
Harry Pristis Posted March 1, 2015 Share Posted March 1, 2015 Thank you, Mike, for your ambitious undertaking. I used your images to ID three different limpets I have here. Having used your images, I think "notes" - currently empty - would be very helpful for anyone using the images. I suggest that you point out at least one distinguishing feature that separates one species from a similar species. In the case of the fissurellids, such a note might be similar to "Fine radial ribs form a ray pattern" or "Radial ribs alternating size from large to small." (after Brayfields). Identifying these mollusks is challenging, and an up-to-date guide would be welcome. Most of us haven't familiarized ourselves with the subtleties of mollusk morphology -- the APAC Challenge. It would be great to have some help from someone who has met the challenge. First up is a single species from the Order Petellogastropda and the Family Fissurellidae aka key hole limpets from the Order Vetigastropoda. Which is the proper order for the Family FISSURELLIDAE? 1 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...
MikeR Posted March 1, 2015 Author Share Posted March 1, 2015 Hi Harry Thanks for the words of encouragement--I hope I haven't bitten off more than I can chew. Eventually I will put in distinguishing characteristics in the note section however at this time I am concentrating on capturing and presenting the images of each shell and work a full time job as well. Right now I am using the notes section to point out differences that I have on published discriptions, synonymies, etc. In regards to the taxonomy which is based on Turgeon et. al., 1998 Hemitoma retiporosa belongs to Patellogastropoda (misspelled in the gallery). Fissurellidae I have belonging to Vetigastropoda however Turgeon now uses Archaeogastropoda which I will also need to change. Mike "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...
Auspex Posted March 1, 2015 Share Posted March 1, 2015 This is really an amazing avocation! Where else do you see this kind of commitment to graciously recording and sharing such hard-earned knowledge? There is motivation here that goes well beyond the acquisition of personal collections; it is giving back to the pool of knowledge upon which all may drink at will. Is it, in part, driven by a desire to bring order to our world? This is one of the intangible gifts of the scientific mindset, this desire to sow rather that hoard, and every seed bears fruit for all to harvest. Kudos! "There has been an alarming increase in the number of things I know nothing about." - Ashleigh Ellwood Brilliant “Try to learn something about everything and everything about something.” - Thomas Henry Huxley >Paleontology is an evolving science. >May your wonders never cease! Link to comment Share on other sites More sharing options...
Harry Pristis Posted March 1, 2015 Share Posted March 1, 2015 (edited) Hi Harry Thanks for the words of encouragement--I hope I haven't bitten off more than I can chew. Eventually I will put in distinguishing characteristics in the note section however at this time I am concentrating on capturing and presenting the images of each shell and work a full time job as well. Right now I am using the notes section to point out differences that I have on published discriptions, synonymies, etc. In regards to the taxonomy which is based on Turgeon et. al., 1998 Hemitoma retiporosa belongs to Patellogastropoda (misspelled in the gallery). Fissurellidae I have belonging to Vetigastropoda however Turgeon now uses Archaeogastropoda which I will also need to change. Mike I do understand to some degree how big an undertaking you propose. You're smart to take it a small bit at a time. Of course, when you're through, the taxonomy probably will have shifted again. I'll look forward to your next installment. Edited March 1, 2015 by 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...
Plantguy Posted March 2, 2015 Share Posted March 2, 2015 Yikes Mike...thanks in advance for sharing the expertise and the endeavor....looking forward to learning some more and trying to make some partial sense of at least one of the spoils piles in the garage.... Regards, Chris Link to comment Share on other sites More sharing options...
Coco Posted March 2, 2015 Share Posted March 2, 2015 Congrats Mike ! And Chris, you have too many shells! I think that you should send part to Anjou (France) 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...
Plantguy Posted March 6, 2015 Share Posted March 6, 2015 Congrats Mike ! And Chris, you have too many shells! I think that you should send part to Anjou (France) Coco Hi Coco, Yes you are absolutely correct. OK...Let me pick out some diff ones for you... Regards, Chris Link to comment Share on other sites More sharing options...
Coco Posted March 6, 2015 Share Posted March 6, 2015 Really ? 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...
MikeR Posted March 7, 2015 Author Share Posted March 7, 2015 I have just added the family Turbinidae from the Order Archaeogastropda. http://www.thefossilforum.com/index.php?/gallery/album/2218-gastropods-of-the-pinecrest-sand/ 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...
MikeR Posted March 14, 2015 Author Share Posted March 14, 2015 (edited) Posted in the Pinecrest Gallery is the last of the Archaeogastropoda Family Trochidae Tegula exoluta (Conrad, 1843) Tegula lindae Petuch, 1994 Family Calliostomidae Calliostoma mitchelli pontoni Mansfield, 1930 http://www.thefossilforum.com/index.php?/gallery/album/2218-gastropods-of-the-pinecrest-sand/ Edited March 15, 2015 by MikeR "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 March 16, 2015 Share Posted March 16, 2015 Hey Mike, thanks for the latest! I dont seem to have very many of these types of Archaeograstropods shells particularly the Turbo, Tegula and Calliostoma and for some odd reason. Again mine are random spoil finds only from APAC but now that you've shown pictures of these species I know I would have collected more if I had seen them. I do have a number of the operculums but I'm curious if you have any sense of their relative rarity in your collecting? Regards, Chris Link to comment Share on other sites More sharing options...
jpc Posted March 16, 2015 Share Posted March 16, 2015 Great project. Your pix are really nice. Someday I will use your site to ID my shells form Sarasota. Link to comment Share on other sites More sharing options...
MikeR Posted March 17, 2015 Author Share Posted March 17, 2015 Hey Mike, thanks for the latest! I dont seem to have very many of these types of Archaeograstropods shells particularly the Turbo, Tegula and Calliostoma and for some odd reason. Again mine are random spoil finds only from APAC but now that you've shown pictures of these species I know I would have collected more if I had seen them. I do have a number of the operculums but I'm curious if you have any sense of their relative rarity in your collecting? Regards, Chris I find that in many cases the operculum for Turbo is more common than the actual shell itself. "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 March 21, 2015 Share Posted March 21, 2015 I find that in many cases the operculum for Turbo is more common than the actual shell itself. Thanks Mike! Found quite a number of those that you've listed so far in my garage piles....I'm happy to get them to genus level and a separate label made for them! Havent found a Calliostoma out there or in the garage yet...I'll keep looking. Appreciate what you are doing! Regards, Chris Link to comment Share on other sites More sharing options...
MikeR Posted March 21, 2015 Author Share Posted March 21, 2015 Nice. I have pictured most of what you show however the top two in the middle are Trigonostoma. 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 March 21, 2015 Share Posted March 21, 2015 Nice. I have pictured most of what you show however the top two in the middle are Trigonostoma. Thanks Mike..thought they might be different...dangit--thanks for the expertise and keeping me straight! Regards, Chris Link to comment Share on other sites More sharing options...
MikeR Posted March 22, 2015 Author Share Posted March 22, 2015 (edited) Added to my Pinecrest gallery are two gastropod orders represented by single species within my collection. http://www.thefossilforum.com/index.php?/gallery/album/2218-gastropods-of-the-pinecrest-sand/ Order Neritospina Family Neritidae Neritina virginea (Linne, 1758) Order Architaenioglossa Family Viviparidae Viviparus georgianus (I. Lea, 1834) Edited March 22, 2015 by MikeR "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 April 3, 2015 Author Share Posted April 3, 2015 Just posted to the gallery the family Cerithiidae belonging to the large order of Neotanioglossa. The Cerithiidae is a diverse warm water family of detritus eaters which are difficult to accurately identify because they sometimes are found in large numbers in screened sediments. Order Neotaenioglossa Family Cerithiidae Cerithioclava dalli (Olsson & Petit, 1964) Cerithium callisoma Dall, 1892 Cerithium coccodes Olsson & Harbison, 1953 Cerithium glaphyrea Dall, 1892 Cerithium litharium Dall, 1892 Cerithium muscarum (Say, 1822) Cerithium preatratum Olsson & Harbison, 1952 Cerithium triticum Olsson & Harbison, 1952 Cerithium wilcoxi Olsson & Harbison, 1952 Cerithium vicinia Olsson & Harbison, 1953 Rhinoclavis caloosaensis (Dall, 1892) http://www.thefossilforum.com/index.php?/gallery/album/2218-gastropods-of-the-pinecrest-sand/ "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...
FossilDAWG Posted April 4, 2015 Share Posted April 4, 2015 Thanks Mike, this will be really helpful. The Cerithiidae drive me bonkers. Don Link to comment Share on other sites More sharing options...
MikeR Posted April 4, 2015 Author Share Posted April 4, 2015 Thanks Mike, this will be really helpful. The Cerithiidae drive me bonkers. Don Me too Don. That is why it is important to read the original description. Fortunately I have a hard copy of O & H and PDFs of Dall's works. I am also finding that the photography especially of the smaller species helps a lot. Mike "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 May 30, 2015 Author Share Posted May 30, 2015 I have just posted the family Potamididae in Gastropods of the Pinecrest Sand Gallery. http://www.thefossilforum.com/index.php?/gallery/album/2218-gastropods-of-the-pinecrest-sand/ Order Neotaenioglossa Family Potamididae Cerithidea diegelae Petuch, 1994 Cerithidea lindae Petuch, 1994 Potamides cancelloides Aldrich, 1911 Pyrazisinus kissimmeensis (Olsson, 1967) Pyrazisinus lindae Petuch, 1994 Pyrazisinus scalinus Olsson, 1967 The Potamidids are known under a number of common names; horn snails, mud whelks and mud creepers. They are a tropical to subtropical family living in brackish water mud flats and mangroves. Most of these are from the APAC Unit 4 brackish water facies also known as the black layer. As a side note, I am having issues with producing quality images of shells in the 1 cm and smaller range with my current setup. I might have to eliminate these size shells in future posts until I have optimized my technique. 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 May 31, 2015 Share Posted May 31, 2015 Hey Mike, thanks for the latest updates!!...I need to go look at what I have and cross ref. You are getting way ahead of me....keep it up! By any chance is there any list that you have or is published with just APAC unit 11 invertebrates? I've collected several shark teeth that I'm guessing came from that unit but am wondering about the gastropods within...I still unfortunately haven't run across any Ecphora's at all yet. Again my stuff is all spoils except some insitu finds so maybe they've been reworked from some of the other lower/upper units...I've seen lots of pieces of different things including Chesaconcavus, Vermicularia, Mercenaria for sure from one general area and have single specimens of Hystrivasum, Subterynotus, and quite a few small interesting encrusting? bryozoans. Regards, Chris Link to comment Share on other sites More sharing options...
Coco Posted May 31, 2015 Share Posted May 31, 2015 Your fossils are marvelous ! 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...
Plantguy Posted May 31, 2015 Share Posted May 31, 2015 I have just posted the family Potamididae in Gastropods of the Pinecrest Sand Gallery. http://www.thefossilforum.com/index.php?/gallery/album/2218-gastropods-of-the-pinecrest-sand/ Order Neotaenioglossa Family Potamididae Cerithidea diegelae Petuch, 1994 Cerithidea lindae Petuch, 1994 Potamides cancelloides Aldrich, 1911 Pyrazisinus kissimmeensis (Olsson, 1967) Pyrazisinus lindae Petuch, 1994 Pyrazisinus scalinus Olsson, 1967 The Potamidids are known under a number of common names; horn snails, mud whelks and mud creepers. They are a tropical to subtropical family living in brackish water mud flats and mangroves. Most of these are from the APAC Unit 4 brackish water facies also known as the black layer. As a side note, I am having issues with producing quality images of shells in the 1 cm and smaller range with my current setup. I might have to eliminate these size shells in future posts until I have optimized my technique. Mike Hi Mike, another question...You mentioned Unit 4 and its brackish water facies....I've seen a number of those darker gray/black specimens in the spoil examples that I have...I was wondering is there any explanation for the more reddish colored specimens? I have the tan/ beige/orange staining specimens and they seem to be derived from similar colored sediments, but havent seen any really reddish sediment...Do they represent any unit/special environment that you are aware of? Here's a quick sample showing the reddish specimen on the very left...I've got a number of other gastropod species that have similar coloration. Regards, Chris Link to comment Share on other sites More sharing options...
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