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Showing results for tags 'pleistocene'.
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I just wanted to share this, thought it might be of interest and there's definitely room for improvement and tips! This was the first fossil mammoth tusk I restored and prepared a few years ago- a juvenile mammoth tusk that was split laterally almost perfectly down the middle. It was sourced from central Alaska, though not sure if it was discovered in a mining operation or if it was exposed on a river bank as so many are. The first step was to submerge and soak the entire tusk in a PVA solution, followed by Apoxie sculpt and banding to merge the two broken pieces and restore some of the tip. I haven't ever done this before so I used the grey Apoxie, in retrospect maybe the white color would have been easier for later coloring? Maybe mixing color in the Apoxie pre-hardening? After banding and curing, the two pieces held together and it was time to sand sand sand down to I think 2000gr. Lastly, I colored the Apoxie fill with various wood stain colors, however I wasn't a huge fan of that- does anyone have any recommendations on how to do that better? I've never been a painter and know nothing about what to use or color matching, but would love some info! I've done other projects and thought about taking on restoration projects where this knowledge would be really helpful but admittedly I'm really inexperienced with coloring any sort of anything. I've seen people reconstruct 1/3 of a cave bear skull and it's like you'd never know unless you were really looking for it. I have no idea how they do that! I'm sure that takes some serious artistic talent that I don't posses, but any tips for this would be appreciated. Originally I built a stand out of bent/polished brass and a block of wood I got from a trophy store that is somehow still in business in this little Alaska town. A couple years after I made the original stand I decided to make a new stand out of a small petrified wood slab/slice. I really like the look of it better (though I'm not crazy about the brass anymore), but I had a really hard time drilling the holes in the slab- I broke a few bits before I bought some stone/tile bits, and even those weren't great! I was only able to drill the holes just barely deep enough to hold the brass wire. Any tips on drilling petrified wood?? I have a few other small things and potentially a few larger items that would look killer on a similar stand. I've done a few tusks since this one, none of them with such significant damage, though none are complete tusks I think I'll post another one of the interesting ones that has amazing vivianite and what I think are actual cobalt crystals in the internal cavity. The restoration done on this tusk is only for me, I have no plans on selling this so in looking for reconstruction/restoration tips & tricks, it's purely for my own collection and enjoyment- not to try and fool some unwitting buyer on our favorite auction website! To be honest, the preparation is the most fun for me! Enjoy! Nick
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- alaska
- fossilpreparation
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This is a tusk I prepped a few years ago, sourced from central Alaska. It was in great shape for being a partial, no breaks to repair or even major cracks to fill, all natural besides a little stabilization and polishing to bring out the colors. Really strong vivianite on this one and inside the internal cavity appears to be crystals. It was tricky to get a good photo of them, but see below. I took a few of the inside shots with a UV flashlight as well as just a flash. Vivianite crystals?
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With pleasure I want to show you my collection of fossils - it's a work in progress. My first piece is this Lycoptera davidi from Western Liaoning, my brother's gift for my birthday. The plate is 13 centimeters long, the fish 8 centimeters long.
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- ammonite
- cleoniceras
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I finally took a trip to the North Sulphur river last week. There have been a couple good rains so I was hoping that would uncover some stuff. The last couple of trips in 2021 were terrible. All muddy and picked over. This trip was still pretty muddy and little in terms of quality mosasaur material. However I went low and found a lot of smaller material. I wonder if the recent muddyness of the river is due to the lake construction or if the river just hasn't had enough rain lately? Is picture 2 an enchodus jaw? I believe the pictures of item 3 are of a really chipped piece of mosasaur tooth. Still never found a whole one this color. Are the pictures of item 4 pachyrhizodus? I have seen people say these are really small mosasaur but I have always doubted this. Any way to identify item 5? Maybe xiphactinus? Item 6 are the few decent mosasaur pieces i found. Is the second one a phalanges bone? Any idea about 7? It is heavily fossilized so i was thinking cretaceous but the shape makes me think of more recent like pleistocene. And my final question. Is item 8 coprolite? Im terrible at identifying the stuff. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10.
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- cretaceous
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New study solves long-standing mystery of what may have triggered ice age by Daniel Stolte, University of Arizona, PhysOrg, June 24, 2022 The paper is: Marcus Lofverstrom, and others, The importance of Canadian Arctic Archipelago gateways for glacial expansion in Scandinavia, Nature Geoscience (2022). Yours, Paul H.
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- canadian arctic archipelago
- climate models
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I’m at a loss on this large bone fragment. I found it on the Brazos River in SE Texas, Pleistocene. It seems too thick for a rib…. The solid bone at the broken end is about 1/2 inch thick. At 10 inches long and broken, it could be a limb bone???
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Solution pipe in limestone Tamala / Coastal Limestone - Pleistocene Age
PerthBloke556 posted a topic in Fossil ID
Hi all, would love your thoughts on what this might be. Found it in Tamala limestone aka Coastal Limestone that dates back to the Pleistocene Age. The circular parts about 1" in diameter.
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Partial 'Megaloceros giganteus' Jaw: I'd Love to Learn More about It...
JamieC7696 posted a topic in Fossil ID
This is a partial 'Megaloceros giganteus' jaw I recently bought, which I'd love to learn more about - but especially the following: 1. Is it actually from Megaloceros, or - indeed - another mammal? 2. Can we tell how mature the animal was when it died? 3. Is the jaw a composite at all? 4. How are such fossils prepared for sale after being found: i.e., I'm especially curious to learn about whether paint and/or glue are applied - and, if so, what would it have looked like before such preparation, upon its discovery?
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From the album: My collection in progress
Mammuthus primigenius Blumenbach 1799 Location: Hatvan, Heves County, Hungary Age: 2,5 - 0,01 Mya (Pleistocene, Quaternary) Measurements: 7x15,5x14 cm Kingdom: Animalia Phylum: Chordata Subphylum: Vertebrata Class: Mammalia Subclass: Theria Superorder: Afrotheria Order: Proboscidea Suborder: Elephantiformes Family: Elephantidae -
My husband found this really large vertebra today in a south Texas gravel bar. Looks a lot larger than the one bison thoracic vertebra I have, and the extra dorsal processes fused together are confusing to me. I thought maybe it could be a sacral vertebra that has broken off from the others, but I don't see the large foramen that I would expect it to have. Also it looks smaller than some of the measurements for mammoth that @JohnJ has posted for reference before in a post by @fossilus. I also don't think it resembles the possible sloth in the post above. Mastodon? Small mammoth? Large bison? Excited, but stumped. I've had a hard time finding good references about the differences between large mammal vertebra in the past. Any ideas? @digit @garyc @Harry Pristis @Lorne Ledger @Shellseeker
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From the album: BONES
© ©Harry Pristis 2015
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Ancient tooth suggests Denisovans ventured far beyond Siberia
Oxytropidoceras posted a topic in Fossil News
Ancient tooth suggests Denisovans ventured far beyond Siberia Molar found in Laos could be the first fossil evidence that the hominin species was far-ranging and able to adapt to different climates. Freda Kreier, Nature News, May 17, 2022 The Open Access paper is: Demeter, F., Zanolli, C., Westaway, K.E., Joannes-Boyau, R., Duringer, P., Morley, M.W., Welker, F., Rüther, P.L., Skinner,; M.M., McColl, H. and Gaunitz, C., 2022. A Middle Pleistocene Denisovan molar from the Annamite Chain of northern Laos. Nature Communications, 13(1), pp.1-17. Your, Paul H.- 1 reply
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- annamite mountains
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From the album: My collection in progress
Stephanorhinus sp. Kretzoi 1942 Location: Bugyi, Pest County, Hungary Age: 2,5 - 0,01 Mya (Pleistocene, Quaternary) Measurements: 3,8x6,3 cm (tooth) Kingdom: Animalia Phylum: Chordata Subphylum: Vertebrata Class: Mammalia Subclass: Theria Superorder: Laurasiatheria Order: Perissodactyla Suborder: Ceratomorpha Family: Rhinocerotidae -
Texas Pleistocene Brazos River Vertebrate Fossil from Fort Bend County
CDiggs posted a topic in Fossil ID
Hi Fossil Forum! I'm hoping for a little help in identifying a fossil I found recently in the Brazos River in Fort Bend County TX. I've tentatively identified it as Pleistocene in age (it's pretty well mineralized) and most likely belonging to a vertebrate mammal but have been rather stumped beyond that. I was initially thinking it could be part of a scapula but I'm now fairly sure its not. At one point I compared it to a skeletal mount of a Pleistocene camel at a local Natural Science museum and was momentarily convinced it was part of the ilium with part of the acetabulum damaged but present, however I'm increasingly doubtful. Hopefully someone with a little more experience will be able to set me straight or at least point me in the right direction. Any help would be greatly appreciated!
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- brazos river
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From the album: BONES
Some common horse (Equus) ankle bones (tarsals) from Florida. These were recovered from Florida rivers.© Harry Pristis 2022
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From the album: BONES
Some common horse ankle bones (tarsals) from the Pleistocene of Florida. These were recovered from Florida rivers.© Harry Pristis 2022
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Howdy, I bought a mammoth tooth that was clear-coated on one side. Unfortunately, there are dozens of divots in it that I think are caused by the clear-coating. They're quite deep as well. Is there anything I can do to fix this?
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Two new publications about the Pleistocene Hiawatha impact crater, Greenland.
Oxytropidoceras posted a topic in Geology
Gustafsson, J., 2020. Impactites from the Hiawatha crater, North-West Greenland. unpublished MS thesis, Department of Geological Sciences, Stockholm University, Sweden. open access Abstract of and link for Gustafsson (2020) PDF file of Gustafsson (2020) Silber, E.A., Johnson, B.C., Bjonnes, E., MacGregor, J.A., Larsen, N.K. and Wiggins, S.E., 2021. Effect of ice sheet thickness on formation of the Hiawatha impact crater. Earth and Planetary Science Letters, 566, p.116972. Abstract of Siber et al. (2021) Preprint of Siber et al. (2021) More publications by Elizabeth A. Silber Yours Paul H. -
Hi Everyone! So, yeah. I'm completely stumped. It's from North Florida and I'm fairly certain it's mammalian but beyond that I got nothin. measurements are about 2 x 1.625 x .75 inches (about 5 x 4 x 2 cm) Any feedback is greatly appreciated as always!
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Hello would like some opinions of these 2 fossils from the Hawthorn formation. I am hoping yall tell me some good news. Thanks very much to everybody that took the time to comment and help me through my newbie struggles. It really is truly appreciated very much. G.
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Hi all, this is my first post on here, but defnitely won't be the last. I'm newly returned to fossil hunting after a multi-decade absence, and I'm very glad to have found this forum! The teeth in the images came from a Pleistocene deposit overlying the London Clay of Essex. I'm tentatively going with deer for the small ungulate tooth, but no clue with the other rooted molar. You might be able to see that a third root has broken off. I've done plenty of searches along the lines of 'ice age mammal tooth ID guide', but could do with some help on the molar - and pointing towards any online/published ID guide! Thanks all.
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Hello all here is a little about myself. Explored creeks, rivers and anything else in the outdoors since a kid. Sadly I am in the last generation to grow up like this. Trying to raise my kids right and bring them along on adventures as they grow up with no interweb and gizmos. Live west of Fort Worth Texas and there is still Native American artifacts to be found if you know where to look. Most found are archaic to paleo I believe. Very old. Way before pottery or the bow was invented. Still Pleistocene bones to be found also. Mostly extinct buffalo. Trying to save as many as possible until concreted/developed and lost forever. I am part time Taxidermist and donate much of my work to local nature centers and exhibits. My favorite quotes: ”Better to give than receive” ”Federal govt. says to native Americans “ “Give up your guns and we will take care of you” God Bless Texas and all who have good intentions. Bryan
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Just looking over some of my finds from my Florida trip. Not quite sure which are fossils and which are just stones. All help is appreciated. All were found in the Peace River. First specimen: pics 1-3; second: pics 4-6; third: pics 7 & 8; fourth: 9 & 10; fifth: 11 & 12.
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Hoping to get some help identifying some finds from this weekends hunt. The second piece is pretty beat up but I hope there is enough left for an Id. The third is a tiny intact bone that may or may not be fossilized. Thank you!
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I found this distal end of a mammalian humerus several weeks ago on the Brazos River southwest of Houston. After hours of searching, it doesn't seem to exactly match any of the common suspects: deer, camel, horse, or bison. Deer or camel is more likely than horse or bison, as the bone is relatively slender and the end of it isn't as bulky as either of those animals. It is possible that I have incorrectly ruled out deer and camels as the trochlea and capitulum on the end are very worn down. If anyone has any suggestions, I'm more than willing to hear them. Thanks!
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