sixgill pete Posted November 23, 2022 Share Posted November 23, 2022 From the Pleistocene Waccamaw Formation of North Carolina Columbus County These were found by me over a several year period during the late 2010's and 2020's A variety of Pleistocene goodies 7 Bulldozers and dirt Bulldozers and dirt behind the trailer, my desert Them red clay piles are heaven on earth I get my rocks off, bulldozers and dirt Patterson Hood; Drive-By Truckers May 2016 May 2012 Aug 2013, May 2016, Apr 2020 Oct 2022 Link to comment Share on other sites More sharing options...
Ludwigia Posted November 23, 2022 Share Posted November 23, 2022 There's a Holocene exposure on the beach at De Kaloot by Borssele in Zeeland Holland which I visited once in May, 2011. When the sands have shifted properly you can pry out some nice chunks like this one with colorful Cerastoderma edule, Macoma balthica and Spisula sp. bivalves. This piece measures 18x15x4cm. 1 7 Greetings from the Lake of Constance. Roger http://www.steinkern.de/ Link to comment Share on other sites More sharing options...
siteseer Posted November 23, 2022 Share Posted November 23, 2022 8 hours ago, historianmichael said: Baculites texanus Late Cretaceous Period Wenonah Formation New Jersey That's a nice association piece. Link to comment Share on other sites More sharing options...
siteseer Posted November 23, 2022 Share Posted November 23, 2022 7 hours ago, MarcoSr said: I look for 6 sets of features on the lingual side of the tooth to help distinguish between Alopias/Trigonotodus and O. megalodon. The root shape on top (gradual slope, deep U etc.) and root lobe shapes are two features. However, with an upper lateral Alopias (giant thresher) root shape can be very similar to O. megalodon. However, this tooth looks like the root lobes neck inward (could be damage making it appear that way) which is a feature on O. megalodon. The crown shape, another feature, with an upper lateral Alopias (giant thresher) can be very similar to O. megalodon. The crown shoulders on the Alopias (giant thresher) have an outward bulge, but wear on this tooth is obscuring this feature. The Alopias (giant thresher) serations are more ragged and non-uniform than a O. megalodon, but again wear is obscuring this feature. Whether the tooth has a distinct bourlette is another feature to look at. Again wear is obscuring this feature. The bottom of the root is rounded by the middle of the crown on an Alopias (giant thresher) whereas an O. megalodon has a bourlette that tends to be triangular and comes to a point near the middle of the crown. This tooth shows a definite triangular area coming to a point where the bourlette would be. So based upon what I see in this lingual view I definitely lean toward O. megalodon. However, a labial view of the tooth would also show two additional features that help distinguish Alopias (giant thresher) from O. Megalodon. Please post a labial view of the tooth. Marco Sr. Yes, it seems more like a meg root but the serrations seem more distinct like A. palatasi even though it's worn. I'm leaning toward megalodon too. Link to comment Share on other sites More sharing options...
historianmichael Posted November 23, 2022 Share Posted November 23, 2022 6 minutes ago, siteseer said: That's a nice association piece. Thank you. It now resides in the MAPS collection. Follow me on Instagram (@fossil_mike) to check out my personal collection of fossils collected and acquired over more than 15 years of fossil hunting! Link to comment Share on other sites More sharing options...
siteseer Posted November 23, 2022 Share Posted November 23, 2022 2 hours ago, FranzBernhard said: Here we go: @JamieLynn: 7 points. @rocket: 5 points. @Ludwigia: 4 points. @Nimravis, @siteseer: 3 points. @historianmichael, @Wrangellian: 1 point. 1 point for each entry in correct order. 1 extra point for size. 1 extra point for how and when acquired. 1 or 2 extra points for extra info (highly subjective!). Will run until December 31st, 2022. Its all for good fun and education, not winning . Franz Bernhard Yes. I'm not in it for the money nor the glory. Just the fun. That's a joke referring to a line from "Smokey and the Bandit." Link to comment Share on other sites More sharing options...
rocket Posted November 23, 2022 Share Posted November 23, 2022 7 hours ago, JamieLynn said: Since we had at one point discussed breaking the Cretaceous into Lower and Upper (since there's SO MUCH OF IT) I am posting "out of order" a Lower Cretaceous because I don't get to catch the Cretaceous very often!! Give Historianmicheal his point...I don't care about the points. Comtulid Crinoid Not Identified (as far as we know, these have not been ID'd) Size 3/8 inch very interesting species, could you post some more pics and the exact stratigraphic position? Thanks Link to comment Share on other sites More sharing options...
MarcoSr Posted November 23, 2022 Share Posted November 23, 2022 49 minutes ago, siteseer said: Yes, it seems more like a meg root but the serrations seem more distinct like A. palatasi even though it's worn. I'm leaning toward megalodon too. Jess The serrations on the tooth look too uniform in width which to me looks more like O. megalodon. But worn serrations are not a good diagnostic feature. Marco Sr. 1 "Any day that you can fossil hunt is a great day." My family fossil website Some Of My Shark, Ray, Fish And Other Micros My Extant Shark Jaw Collection Link to comment Share on other sites More sharing options...
JamieLynn Posted November 24, 2022 Share Posted November 24, 2022 @rocket Glen Rose Formation Central Texas And here is another one from the same formation, but different location: 5 1 www.fossil-quest.com Link to comment Share on other sites More sharing options...
fossilselachian Posted November 24, 2022 Share Posted November 24, 2022 Agree with Jess. Megalodon Link to comment Share on other sites More sharing options...
hemipristis Posted November 24, 2022 Share Posted November 24, 2022 20 hours ago, Al Dente said: Probably Alopias palatasi. 17 hours ago, MarcoSr said: I look for 6 sets of features on the lingual side of the tooth to help distinguish between Alopias/Trigonotodus and O. megalodon. The root shape on top (gradual slope, deep U etc.) and root lobe shapes are two features. However, with an upper lateral Alopias (giant thresher) root shape can be very similar to O. megalodon. However, this tooth looks like the root lobes neck inward (could be damage making it appear that way) which is a feature on O. megalodon. The crown shape, another feature, with an upper lateral Alopias (giant thresher) can be very similar to O. megalodon. The crown shoulders on the Alopias (giant thresher) have an outward bulge, but wear on this tooth is obscuring this feature. The Alopias (giant thresher) serations are more ragged and non-uniform than a O. megalodon, but again wear is obscuring this feature. Whether the tooth has a distinct bourlette is another feature to look at. Again wear is obscuring this feature. The bottom of the root is rounded by the middle of the crown on an Alopias (giant thresher) whereas an O. megalodon has a bourlette that tends to be triangular and comes to a point near the middle of the crown. This tooth shows a definite triangular area coming to a point where the bourlette would be. So based upon what I see in this lingual view I definitely lean toward O. megalodon. However, a labial view of the tooth would also show two additional features that help distinguish Alopias (giant thresher) from O. Megalodon. Please post a labial view of the tooth. Marco Sr. @Al Dente... @MarcoSr Gentlemen, I want to thank you both! I learned something new today. I have not heard of this species. I need to track down that reference. Here are 3 additional photos0 'Those who cannot remember the past are condemned to repeat it.' George Santayana Link to comment Share on other sites More sharing options...
rocket Posted November 24, 2022 Share Posted November 24, 2022 11 hours ago, JamieLynn said: @rocket Glen Rose Formation Central Texas And here is another one from the same formation, but different location: thanks, oh, very unusual comatulids... I am just working on some from upper cretaceous of middle germany (more Glenotremites / Jaeckelometra - type), never seen ones from Glen Rose - Formation. I do have some Salenia from there and a ?Tetragramma, but never seen crinoids... Do you know if someone is working on crinoids from there? I do not know about and have no literature about crinoids from there Link to comment Share on other sites More sharing options...
MarcoSr Posted November 24, 2022 Share Posted November 24, 2022 4 hours ago, hemipristis said: @Al Dente... @MarcoSr Gentlemen, I want to thank you both! I learned something new today. I have not heard of this species. I need to track down that reference. Here are 3 additional photos0 Thank you for posting the additional pictures. I was looking for an indention along the lower root/crown border on the labial side which I don't see (I see mostly root and enamel erosion) which some Alopias (giant threshers) have. I was also looking at the shape of the lower root/crown border. Also, the root lobes are much clearer in the labial view. All the features on this tooth that I see match O. megalodon. Marco Sr. 1 "Any day that you can fossil hunt is a great day." My family fossil website Some Of My Shark, Ray, Fish And Other Micros My Extant Shark Jaw Collection Link to comment Share on other sites More sharing options...
hemipristis Posted November 24, 2022 Share Posted November 24, 2022 10 minutes ago, MarcoSr said: Thank you for posting the additional pictures. I was looking for an indention along the lower root/crown border on the labial side which I don't see (I see mostly root and enamel erosion) which some Alopias (giant threshers) have. I was also looking at the shape of the lower root/crown border. Also, the root lobes are much clearer in the labial view. All the features on this tooth that I see match O. megalodon. Marco Sr. Thank you Marco 'Those who cannot remember the past are condemned to repeat it.' George Santayana Link to comment Share on other sites More sharing options...
Pleuromya Posted November 24, 2022 Share Posted November 24, 2022 Hopefully it's okay if I skip the Precambrian. This is from the Lower Cambrian Zhujiaquing formation of Kunming, Jinning, Yunnan Province, China. The yellow spherical fossil is (I think) Archaeooides. It's really interesting, as it's the diapause embryonic remains of an animal. I haven't been able to get a measurement yet, but it's less than 1mm. Sorry for the poor photos. 3 Link to comment Share on other sites More sharing options...
pachy-pleuro-whatnot-odon Posted November 25, 2022 Share Posted November 25, 2022 13 minutes ago, Pleuromya said: it's the diapause embryonic remains of an animal I have no idea what you just said...! 1 'There's nothing like millions of years of really frustrating trial and error to give a species moral fibre and, in some cases, backbone' -- Terry Pratchett Link to comment Share on other sites More sharing options...
Pleuromya Posted November 25, 2022 Share Posted November 25, 2022 1 minute ago, pachy-pleuro-whatnot-odon said: I have no idea what you just said...! Its where the embryo reduces its metabolism and stalls it's development in order to survive environmental stress. 2 Link to comment Share on other sites More sharing options...
Mark Kmiecik Posted November 25, 2022 Share Posted November 25, 2022 2 hours ago, pachy-pleuro-whatnot-odon said: I have no idea what you just said...! Like insect eggs lying dormant until spring. 2 1 Mark. Fossil hunting is easy -- they don't run away when you shoot at them! Link to comment Share on other sites More sharing options...
hemipristis Posted November 25, 2022 Share Posted November 25, 2022 6 hours ago, Pleuromya said: Its where the embryo reduces its metabolism and stalls it's development in order to survive environmental stress. in humans, it's called booze. 2 'Those who cannot remember the past are condemned to repeat it.' George Santayana Link to comment Share on other sites More sharing options...
Ludwigia Posted November 25, 2022 Share Posted November 25, 2022 The 4cm long Middle Ordovician trilobite Ogygynus corndensis from Gilwern Hill, Powys, Llandrindod Wells, Wales. Early Llanvirn, Dariwilian. Recieved on a trade with a Welsh colleague back in 2014. Only a small portion of the shell remains on the cephalon, but the Steinkern is quite well preserved. 9 Greetings from the Lake of Constance. Roger http://www.steinkern.de/ Link to comment Share on other sites More sharing options...
Kane Posted November 25, 2022 Share Posted November 25, 2022 Ichnofossils (burrows). Silurian, Eramosa Fm Lagerstatte. We had permission to collect from this material some number of years ago. 9 ...How to Philosophize with a Hammer Link to comment Share on other sites More sharing options...
Kane Posted November 25, 2022 Share Posted November 25, 2022 A large Reedops cephalotes hamlagdadianus I prepared from the Devonian of Morocco. 8 ...How to Philosophize with a Hammer Link to comment Share on other sites More sharing options...
JamieLynn Posted November 25, 2022 Share Posted November 25, 2022 Mississippian of Iowa Burlington Formation Crinoid Size 1 inch 3 www.fossil-quest.com Link to comment Share on other sites More sharing options...
Tidgy's Dad Posted November 25, 2022 Share Posted November 25, 2022 On 11/23/2022 at 6:56 PM, sixgill pete said: Eocene Castle Hayne Formation found by me March 23 2023 a nice brachiopod @Tidgy's Dad Terebratulina lachryma Yes, a classic teardrop shaped terebratulid, hence the specific name. Life's Good! Tortoise Friend. Link to comment Share on other sites More sharing options...
Nimravis Posted November 25, 2022 Share Posted November 25, 2022 Kottixerxes gloriosus Francis Creek Shale Pit 11 Mazon Creek Grundy Co., Illinois Pennsylvanian 7 Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now