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Showing results for tags 'angustidens'.
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From the album: Fin Lover's South Carolina Finds
On site -
From the album: Fin Lover's South Carolina Finds
So close to being perfect!-
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- angustidens
- oligocene
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From the album: Fin Lover's South Carolina Finds
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- angustidens
- oligocene
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From the album: Fin Lover's South Carolina Finds
So close to being perfect!-
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- angustidens
- oligocene
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From the album: Fin Lover's South Carolina Finds
What a shamer!-
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- shark
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What is the most updated info on Megalodon's ancestors?
jikohr posted a topic in Questions & Answers
Hi everyone! I've been reading a bit about Megalodon's ancestors and trying to update my knowledge and I'm coming across some conflicting information. It seems everywhere I look has a different age range and there seems to be a debate between the genus. Some use Carcharocles and some use Otodus. I've been using Carcharocles for the lineage, is that officially out of date? Also what are the age ranges of the ancestors Auriculatus, Angustidens, and Chubutensis? I can't find any consistent numbers and some places seem to suggest they coexisted (Auriculatus with Angustidens for a short time then later Angustidens with Chubutensis etc.) is that true? Any insight is appreciated as always! -
Correctly Identifying, Ariculatus vs. Angustidens Teeth?
Rock Hound posted a topic in General Fossil Discussion
What are the best quick identifying characteristics, to help one make a correct identification; if the location and soil layer / formation, are unknown? Perhaps you either purchase or are given a tooth; which lacks proper provenance, etc. -
Found ex-situ, so I have included both Oligocene formation possibilities (Chandler Bridge Formation and Ashley Formation). References: Cicimurri, D. J., & Knight, J. L. (2009). Late Oligocene sharks and rays from the Chandler Bridge Formation, Dorchester County, South Carolina, USA. Acta Palaeontologica Polonica, 54(4), 627-647. Gale, B., Gale, P., & Gale, A. (2020). A Beachcomber's Guide to Fossils. University of Georgia Press. Miller, A., Gibson, M., & Boessenecker, R. (2021). A megatoothed shark (Carcharocles angustidens) nursery in the Oligocene Charleston Embayment, South Carolina, USA. Palaeontologia Electronica, 24(2), 1-19.
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- angustidens
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From the album: Fin Lover's South Carolina Finds
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- oligocene
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I found my smallest posterior angy yesterday (9 mm total height and about 3 mm crown height). One cusp is quite mangled, but I don't know how it has stayed together (and feels solid) if it was broken. My first guess was that it is damaged, but I wonder if it could be pathological. It appears in the first two pictures to have root material over the cusp area. Thoughts? Thank you!
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Better late than never right?! I'm finally getting around to sharing my finds from a recent trip up the east coast for work, with a few pitstops along the way! The first two images were from an all day hunt in a creek in Summerville, with Folly Beach Fossils! The third image are my spoils from a solo half a day in GMR... Right by elm street park, because the water was way too high to go further down stream from there, and I didn't have much time! What a great time finding a couple of new species and making a few more friends along the way! I cannot wait to get back up there and hunt again!!!
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- angustidens
- bull shark
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From the album: Fin Lover's South Carolina Finds
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From the album: Fin Lover's South Carolina Finds
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From the album: Fin Lover's South Carolina Finds
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- angustidens
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From the album: Fin Lover's South Carolina Finds
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From the album: Fin Lover's South Carolina Finds
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From the album: Fin Lover's South Carolina Finds
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From the album: Fin Lover's South Carolina Finds
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From the album: Fin Lover's South Carolina Finds
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The fossil hunters have been out in droves since Hurricane Ian left South Carolina, so I figured I better get out there yesterday. Some creeks were still too high to hunt, so I went to one that has never given me a 100% complete large tooth, but I enjoy the spot and it is typically empty. It definitely was not empty yesterday. I passed a few people leaving when I arrived and passed 8 others as I walked through the creek. Not a good sign. But, all of the others were sifting, which I don't usually do anyway, so I took to checking the high bank for washout. I still didn't find a 100% complete large tooth there, but I'm still very happy with the hunt. Angustidens and megs (minus the best one at the end of the report): So close to complete...just a tiny bit of tip missing Some pretty hemis: Various other teeth, ray plates, etc. (some may be angy/megs, but they were too worn to make the cut with the others): A cool vert that I pulled out of the matrix, but then part of it broke: And my prized jewel, a 4 and 3/32 inch angy!!!! (Has been remeasured since first posting.) My last several trips had been discouraging, so I am thrilled with the day, even if they aren't perfect. Thanks for reading!
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Enter the Oligocene (Virtual Reality Project) - Phase one is complete !
Brett Breakin' Rocks posted a topic in Members' News & Diversions
Hello Everyone, Now that my time under a --- COVID-19, virtual teaching, selling my house and moving to Colorado --- rock is ending ? I can share the phase one completion of my students' VR project, Enter the Oligocene. This project was a collaboration with Matthew Gibson at The Charleston Museum, Dr. Bobby (Robert) Boessenecker @Boesse and my SCAD (Savannah College of Art and Design) students. Graduate and Undergraduate students participated in the 'class' and spent a little under 8 weeks to complete the Phase 01 portion of the project. A herculean effort for any artists given the circumstances. On its face the goal was to create a virtual and visual outreach project. A project that takes the fauna specifically from the Charleston area at the time of the Early/Late Oligocene and brings it to life. The star of the show ? ... Bobby's as yet described Genus-Y (now described Ankylorhiza tiedemani ! )would be the hero model and focus of the main display in the encounter. A few references for those not familiar with Bobby Boessenecker or Matthew Gibson's institutions. Mace Brown Museum of Natural History - Bobby Boessenecker - Paleontologist http://geology.cofc.edu/natural-history-museum/ The Charleston Museum - Matthew Gibson - Curator of Natural History https://www.charlestonmuseum.org/ Hopefully this has been posted and shared elsewhere on the forum ! Bobby's newly published skeleton of Ankylorhiza tiedemani and colleagues (Dr. Morgan Churchill, Dr. Emily Buchholtz, Dr. Brian Beatty, and Dr. Jonathan Geisler) Convergent Evolution of Swimming Adaptations in Modern Whales Revealed by a Large Macrophagous Dolphin from the Oligocene of South Carolina https://www.cell.com/current-biology/fulltext/S0960-9822(20)30828-9?fbclid=IwAR0DbqXtV_IyFhBTOH6i0263t_fFbctGblBeJilnI_ThNQks9s8LvQ024LU#articleInformation I originally imagined the backdrop for the project as an undersea 'lab' environment attached to a equally impressive museum or display structure. The player can go from the interior of the structure to the flooded exterior of the structure effortlessly. The team focused on various hero elements, one being an Otodus angustidens (my personal favorite) Genus-Y and other billfish, rays and fish common for the time period. Our inspirations were varied but the students did settle upon something more akin to Art Deco for the interior. Here are a few of the initial models/inspirations. A few of the models as Works-In-Progress To Be Continued:
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From the album: Fin Lover's South Carolina Finds
On site -
From the album: Fin Lover's South Carolina Finds
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From the album: Fin Lover's South Carolina Finds
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From the album: Fin Lover's South Carolina Finds
