DardS8Br Posted August 22, 2022 Share Posted August 22, 2022 (edited) I’d like to see the Pliocene fossils from California that people have I’ll start off with some fossils I collected from the Purisima formation at Capitola Beach A vertebra with a shell on the back A heavily eroded whale vertebra with some associated (rib?) bones Some cool clam shells Edited to add: Here’s a clam shell I dug up from the Pinole Tuff formation when I was 7. It was the first fossil I ever found Edited August 22, 2022 by DardS8Br 3 Link to comment Share on other sites More sharing options...
JohnJ Posted August 22, 2022 Share Posted August 22, 2022 @Boesse 1 The human mind has the ability to believe anything is true. - JJ Link to comment Share on other sites More sharing options...
siteseer Posted August 22, 2022 Share Posted August 22, 2022 Here's a fossil great white shark tooth collected back in the 1950's before San Diego was as urbanized as it is now. It was collected on Reynard Way at the intersection with Curlew Street. The tooth measures 34mm along the longest dimension. Carcharodon carcharias Pilocene San Diego Formation San Diego, San Diego County, California 4 3 Link to comment Share on other sites More sharing options...
DPS Ammonite Posted August 22, 2022 Share Posted August 22, 2022 (edited) @DardS8Br Consider getting a free subscription to JSTOR; you can view many journals including the Journal of Paleontology. Here is an interesting article about Pinole Fm vertebrates: Clark, J. M. (1985). Fossil Plethodontid Salamanders from the Latest Miocene of California. Journal of Herpetology, 19(1), 41–47. https://doi.org/10.2307/1564418 https://www.jstor.org/stable/1564418 Edited August 22, 2022 by DPS Ammonite 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...
RJB Posted August 22, 2022 Share Posted August 22, 2022 I walked all the way from Capitola beach almost to the park and found this in a rock. 2 5 Link to comment Share on other sites More sharing options...
DardS8Br Posted August 23, 2022 Author Share Posted August 23, 2022 (edited) 13 hours ago, RJB said: I walked all the way from Capitola beach almost to the park and found this in a rock. Holy snarge. I’ve never come close to finding anything this good at capitola. Wow Edited August 23, 2022 by DardS8Br 3 Link to comment Share on other sites More sharing options...
RJB Posted August 23, 2022 Share Posted August 23, 2022 9 hours ago, DardS8Br said: Holy snarge. I’ve never come close to finding anything this good at capitola. Wow Please understand that this was inside a rock. I had to prep off all the rock. The only things I could see were the ends of the lateral processes the the very tip of the neural spine. If you can find bone inside of rock it is usually pristine. RB 1 1 Link to comment Share on other sites More sharing options...
Shellseeker Posted August 23, 2022 Share Posted August 23, 2022 2 hours ago, RJB said: Please understand that this was inside a rock. I had to prep off all the rock. The only things I could see were the ends of the lateral processes the the very tip of the neural spine. If you can find bone inside of rock it is usually pristine. RB But the talent required , Ron . You are definitely one of the masters in removing bone, shells, ammonites from rock... So few could take it from rock to bone as well as you. 1 1 The White Queen ".... in her youth she could believe "six impossible things before breakfast" Link to comment Share on other sites More sharing options...
RJB Posted August 24, 2022 Share Posted August 24, 2022 Here are two complete rib bones I found many years ago. This one was in a huge rock. Had to chisel it out. Went back the next day to try and get out a really nice vert but the entire rock was gone! It was the size of my truck! This one was dug out of a cliff alongside a creek at Scotia Bluffs, south of Eureka California 1 3 Link to comment Share on other sites More sharing options...
siteseer Posted August 25, 2022 Share Posted August 25, 2022 Three specimens of the extinct sand dollar species, Dendraster gibbsi (Pliocene, Etchigoin Formation, Kings County, California). The two on the right represent the average size range of the species (25-40mm in widest diameter) but you can find smaller ones (less than 10mm). It's the kind of fossil with which you can assemble a growth series in one trip. The specimen on the left is the largest one I've ever found. It measures 60mm. Dendraster gibbsi is quite common at some sites in the Kettleman Hills. You can find them in a variety of colors and some look even better with a simple wash-off and brush-off in water. Others benefit from a dip in vinegar or weak HCL solution. 1 Link to comment Share on other sites More sharing options...
DardS8Br Posted August 25, 2022 Author Share Posted August 25, 2022 On 8/24/2022 at 4:46 AM, RJB said: Here are two complete rib bones I found many years ago. This one was in a huge rock. Had to chisel it out. Went back the next day to try and get out a really nice vert but the entire rock was gone! It was the size of my truck! This one was dug out of a cliff alongside a creek at Scotia Bluffs, south of Eureka California Where’d you find that first rib? Link to comment Share on other sites More sharing options...
RJB Posted August 26, 2022 Share Posted August 26, 2022 11 hours ago, DardS8Br said: Where’d you find that first rib? Oops. that was found on Capitola beach in a huge huge rock back in the early 1990's 1 Link to comment Share on other sites More sharing options...
Boesse Posted August 26, 2022 Share Posted August 26, 2022 This is not my specimen, but found by local collector Forrest Sheperd when he was 14, around 12 years ago (he's now applying to medical schools, which makes me feel extremely old!). This is a new species of the genus Valenictus, a 'toothless' walrus known only from California and Baja California. The specimen is now fully cleaned up - I managed to remove the rest of the rock using acetic acid baths, which took about 18 months. At my request Forrest donated it to UC Berkeley, and after three years of serious study our paper on the fossil is nearing completion and will be submitted later this fall! 4 6 1 Link to comment Share on other sites More sharing options...
Thecosmilia Trichitoma Posted August 27, 2022 Share Posted August 27, 2022 (edited) Quote I’ll start off with some fossils I collected from the Purisima formation at Capitola Beach For anyone looking to collect there, please keep in mind Capitola Beach is on state land, and that it is illegal to collect fossils there without permission (I assume you have acquired it, but I am just adding this for anyone looking into the site that doesn't know the laws.) Pub. Res. Code §5097.5. (a)No person shall knowingly and willfully excavate upon, or remove, destroy, injure, or deface, any historic or prehistoric ruins, burial grounds, archaeological or vertebrate paleontological site, including fossilized footprints, inscriptions made by human agency, rock art, or any other archaeological, paleontological or historical feature, situated on public lands, except with the express permission of the public agency having jurisdiction over the lands. Violation of this section is a misdemeanor. (b)As used in this section, “public lands” means lands owned by, or under the jurisdiction of, the state, or any city, county, district, authority, or public corporation, or any agency thereof. Edited August 27, 2022 by Thecosmilia Trichitoma 1 1 It is better to keep your mouth closed and let people think you are a fool than to open it and remove all doubt -Mark Twain Link to comment Share on other sites More sharing options...
siteseer Posted August 27, 2022 Share Posted August 27, 2022 (edited) Here's a cluster of Dendraster ashleyi from the Pliocene Fernando Formation of Lompoc, Santa Barbara County, CA. @Nimravis once sent a photo of a similar specimen. Edited August 27, 2022 by siteseer 2 4 Link to comment Share on other sites More sharing options...
DPS Ammonite Posted August 27, 2022 Share Posted August 27, 2022 (edited) Did these feed in the long end in the vertical position like the fossil sand dollars found just south of San Francisco and the modern ones found in California? Edited August 27, 2022 by DPS Ammonite 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...
siteseer Posted August 27, 2022 Share Posted August 27, 2022 32 minutes ago, DPS Ammonite said: Did these feed in the long end in the vertical position like the fossil sand dollars found just south of San Francisco and the modern ones found in California? Let Abba help with some spelling: https://m.youtube.com/watch?v=G8bm6XlxuCY Yeah, that was a typo. I type faster than I think sometimes and don't always catch the typos before I reply. Link to comment Share on other sites More sharing options...
MikeR Posted August 27, 2022 Share Posted August 27, 2022 Patinopecten healyi (Arnold, 1906). Upper Pliocene (Piacenzian) San Diego Formation, San Diego County, California. 1 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...
MikeR Posted August 27, 2022 Share Posted August 27, 2022 Lyropecten cerrosensis (Gabb, 1866). Upper Pliocene (Piacenzian) San Diego Formation, San Diego County, California. 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 August 28, 2022 Share Posted August 28, 2022 Pecten (Plagioctenium) subdolus Hartlein, 1925. Upper Pliocene (Piacenzian) San Diego Formation, San Diego County, California. 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 August 28, 2022 Share Posted August 28, 2022 Pecten (Plagioctenium) callidus Hartlein, 1925. Upper Pliocene (Piacenzian) San Diego Formation, San Diego County, California. 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...
Uncle Siphuncle Posted August 28, 2022 Share Posted August 28, 2022 On 8/25/2022 at 2:58 PM, siteseer said: Three specimens of the extinct sand dollar species, Dendraster gibbsi (Pliocene, Etchigoin Formation, Kings County, California). The two on the right represent the average size range of the species (25-40mm in widest diameter) but you can find smaller ones (less than 10mm). It's the kind of fossil with which you can assemble a growth series in one trip. The specimen on the left is the largest one I've ever found. It measures 60mm. Dendraster gibbsi is quite common at some sites in the Kettleman Hills. You can find them in a variety of colors and some look even better with a simple wash-off and brush-off in water. Others benefit from a dip in vinegar or weak HCL solution. I did this venue years ago,must have taken 100 perfect ones including doubles and triples cemented together in just a couple hours. 1 Grüße, Daniel A. Wöhr aus Südtexas "To the motivated go the spoils." Link to comment Share on other sites More sharing options...
MikeR Posted August 29, 2022 Share Posted August 29, 2022 Argopecten abietus abbotti (Hartlein & Grant, 1972). Upper Pliocene (Piacenzian) San Diego Formation, San Diego County, California. "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 August 29, 2022 Share Posted August 29, 2022 Leopecten stearnsii (Dall, 1878). Upper Pliocene (Piacenzian) San Diego Formation, San Diego County, California. 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 August 30, 2022 Share Posted August 30, 2022 Euvola bella (Conrad, 1857). Upper Pliocene (Piacenzian) San Diego Formation, San Diego County, California. "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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