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Showing results for tags 'pleistocene'.
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I’m fairly confident that this is a large piece of giant tortoise plastron. It measures about 16 inches at the greatest length. Found in SE Texas. I’d love confirmation. Also, what part of the plastron? It looks like there’s an area where a limb would have been…@johnnyvaldez7.jv how’d you miss this? I found it on your turf, lol
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A Wealth of Trace Fossils from Saskatoon, Saskatchewan!
Pseudogygites posted a topic in Fossil Hunting Trips
Another day of great finds in Saskatoon! This time, some trace fossils. With my wonderful collaboration with the University of Saskatchewan's Museum of Natural Sciences still continuing, recently I have been very lucky to make multiple trips out to a beautiful site just outside the city of Saskatoon where massive deposits of glacial lake silt are exposed. This silt produces pristine grass and other plant fossils in abundance (I'd like to make a post about them soon as well), but also seems to be teeming with various invertebrate trace fossils. All are very small (under 1 centimetre wide). I've attached some of my best pictures below. 1 - 6: Overlapping Planolites sp. closeups 7 - 11: Edaphichnium sp. 12 - 14: Taenidium sp. closeups 15 - 16: Taenidium sp. wide shots 17: Taenidium sp. closeup
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- canada
- canada fossils
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At the end of August we went on a quick two day trip to see if the creeks we hunt for Pleistocene megafauna in near Tambar Springs were still full of water. Unfortunately, most of the creeks were still full but we did have one nice section of dry creek bed to walk while we were up there. A lot of the things we find are either shards or particularly robust bones (e.g. kangaroo calcanea), and occasionally jaws or teeth. This is because the material tends to weather out of its original layer and gets redeposited into newer gravelly layers, a process which tumbles and grinds up the fossils. Here are a couple of examples. Bone fragment in situ: Macropod tooth fragment from the same bank: A photo of the gravelly bank the last two specimens were found in. The rocks seem to be a mixture of Tertiary basalt and Jurassic sandstone (also petrified wood). Some of these alluvial gravel layers may still be very old, however the Pleistocene fossils they contain weren't originally deposited in them. Very rarely, we found sections of what I assume is the original fossil containing deposit. It is a soft, sandy clay which has occasional small pebbles and bands of calcrete. It is here we found our best find this trip, a partial wombat (Vombatus sp.) skull! In situ photos: After removing from the bank: A pretty intense storm rolled in that afternoon. Fortunately we missed the bulk of it while we were in the field! More to come...
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I found this yesterday on a river gravel bank. It's completely mineralized and I think after looking online that it is a deer proximal phalanx? It's in nice condition... couldn't believe after all the busted up pieces I usually find. Size is 1.8 inches.
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From the album: Carnivore Fossils from the Pleistocene of Florida
Very rare Xenosmilus carnassial from the Blancan of Florida. -
This is an upper p4 to a dire wolf (Aenocyon dirus) from the Pleistocene of Florida. -
I’m sure I posted this when I found it, but I think I only got “bison” as an id. I’m reposting because of the recent post and subsequent conversation about bison vs cow tooth size. The length of the m3 is about 52mm. Would that measurement be in the range of bison antiquus?
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Hello, I found this in SE Texas along a river where I regularly find horse, bison, and camel fossils. I thought this one resembles a mastadon leg bone? Also I planned on using vinegar to remove the sediment. Happy to hear any recommendations for preserving this. Thanks
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An ‘ancestral bottleneck’ took out nearly 99 percent of the human population 800,000 years ago. Only 1,280 breeding individuals may have existed at this dramatic era of human history. Popular Science, August 2023 Human ancestors nearly went extinct 900,000 years ago A new technique analysing modern genetic data suggests that pre-humans survived in a group of only 1,280 individuals. Anna Ikarashi, Nature News, August 31, 2023 Humanity’s Ancestors Nearly Died Out, Genetic Study Suggests The population crashed following climate change about 930,000 years ago, scientists concluded. Other experts aren’t convinced by the analysis. Carl Zimmer, New York Times, August 31, 2023 The preprint of the paper is at: Hu, W., Hao, Z., Du, P., Di Vincenzo, F., Manzi, G., Pan, Y.H. and Li, H., 2021. Genomic inference of a human super bottleneck in Mid-Pleistocene transition. bioRxiv, pp.2021-05 The paywalled paper is at: Hu, W., Hao, Z., Du, P., Di Vincenzo, F., Manzi, G., Pan, Y.H. and Li, H., 2021. Genomic inference of a human super bottleneck in Mid-Pleistocene transition. Science, 381(6661), pp. 979-984. Yours, Paul H.
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- african populations
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Need help identifying these two vertebrae. The first I think is a mammoth or mastodon. I’m not sure about the second but it’s much to large to be bison or horse.
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Hey there i have more fossils from the Nishnabotna River in Iowa, i'd especially like help on this rib bone, it's probably bison but what do you think?
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Just wanted to give my fellow fossil hunters a heads up. Was at Green Mill Run the other day and looks like new residents have called it home — snapping turtles. Saw two of them and of course they blend well into the creek. Could've lost my finger when I picked up something almost front of it . Any way, beautiful creatures, but very careful as they can be hard to spot in the water
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- cretaceous
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Pre–Younger Dryas megafaunal extirpation in southern California
Oxytropidoceras posted a topic in Fossil News
How Early Humans May Have Transformed L.A.’s Landscape Forever Science Friday, NPR, August 25, 2023 Uncovering Death by Fire 13,000 years ago Micheal Price, Sciences News, August 17, 2023 La Brea Tar Pits Reveal Clues to Mysterious Mass Extinction By Shana Hutchins, Futurity, August 18, 2023 The paywalled paper is: O’Keefe, F.R., Dunn, R.E., Weitzel, E.M., Waters, M.R., Martinez, L.N., Binder, W.J., Southon, J.R., Cohen, J.E., Meachen, J.A., DeSantis, L.R. and Kirby, M.E., 2023. Pre–Younger Dryas megafaunal extirpation at Rancho La Brea linked to fire-driven state shift. Science, 381(6659), p.eabo3594. Yours, Paul H.-
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I am doing a work on identification, but these three samples have been very complicated for me, they are from San Luis Potosí, Mexico. I have suspicions that the first is a camel incisor, the second a very worn horse molar, I could not tell if conversidens or mexicanus, and in the last one I am definitely lost, I hope you can help me!
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Low tide reveals approx. 80,000-year-old fossil along South Carolina coast
Oxytropidoceras posted a topic in Fossil News
Low tide reveals approx. 80,000-year-old fossil along South Carolina coast Josh davis, WPDE, Agust 15, 2023 Low tide reveals approx. 80,000-year-old fossil along Myrtle Beach coast Fox 28m, Savannah, Georgis Yours Paul H.-
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Recently my buddy @garyc got me into fossil hunting and I found this at the river (Brazos River) this week. If anyone could help me identify it I would appreciate it.
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Does anyone know the name of the formation in Florida where Pleistocene age fossils are found?
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Hello everyone! Earlier today I was in Green Mill Run in Greenville, North Carolina sifting for fossils (mostly miocene and cretaceous marine) and I came across this fossil. I first picked it up because it looked exactly like some giant ground sloth teeth that I had seen before from the Pleistocene (which I’ve heard you get occasional Pleistocene fossils as well). I would stick with this ID, but the texture seems off, so I wanted to see if I could confirm wether it was a sloth tooth or a convincing bone chunk here. Sorry for unideal scale and photos, not home currently but I can provide any additional photos needed. Thanks!
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Hello friends! I need some help on something I found in Monmouth County, NJ (USA). It's from Big Brook, a Cretaceous deposit, but in my opinion; is either modern or Pleistocene (open for correction). I'm thinking mammal but not sure. It also has a 'polished' look to it, so I'm thinking possible claw. It has a wood-grain texture, but I don't believe it to be fossil wood. As always, all help is greatly appreciated! -Frank H.
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I found this Saturday on a river gravel bank... it's completely mineralized and heavy. Sorry I didn't get a chance to measure it, but it is a fragment of something. I'm thinking it's from a large mammal but I'm not familiar with large toe bones and wondered if this might be one or if it's just a fragment to a large bone?
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Added this new beautiful tooth to my collection: Smilodon indet. (likely Fatalis) Left Upper P4 Molar Pleistocene Epoch, Florida Height 4.2cm Length 3cm Look at the massive size of this cat molar!
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Found this Saturday on a river gravel bank... it's mineralized but I haven't found one like this. Could be Equus but I don't know... doesn't look like the others I've found. Thanks for your thoughts.
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I found this Saturday on a river gravel bank and I think it's an Equus incisor? It's colorful like the other Equus teeth I've found.
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I found this Saturday on a river gravel bank and it's pretty beat up... but it's unusual compared to others I've found. It's completely mineralized and highly eroded... but from what is left it seems to be going all over the place. Can't figure it out. There's super smart people here who could probably instantly figure it out. Probably a scrap but a cool puzzle. I'm still researching.
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Hi everyone! I acquired this jaw a few months ago and IDed it as coming from a large Canid. My question is can it be identified further and is there any funny business. Specifically with the Canine which is a different color than the other teeth. I tested the bone in multiple places so I know it's authentic, I'm just wondering if the Canine was found individually and inserted. The placement of a little bit of putty in the socket with the canine doesn't help my suspicions. As for the ID I figure Grey Wolf is the most likely but I'm not to experienced with canid material and was hoping for a second opinion to rule out something like a really big coyote (or rule in something really special like Dire Wolf). The Jaw is from Siberia and measures 18.13 cm long. Let me know if there's any other pics or measurements I can provide and any insight is appreciated as always!
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