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#pleistocene

1 post1 participant0 posts today
Marcus Brandel

This mystery mammoth molar was donated to the Pope County Historical Society in Glenwood, Minnesota, along with a large bison skullcap and another mammoth molar.

I am actively investigating its discovery location, along with several other donations. Check the link in my profile to uncover more stories of 'lost' Pleistocene specimens, where I’ve pieced together the details of their discovery and preservation.

popecountymuseum.com

#Pleistocene#Mammoth#Molar
*
Marcus Brandel

It’s a #LostBones #FossilFriday 🐘 🦥🐴🐪🐟 This mammoth specimen is not from #Minnesota, but you can see it here! This molar and partial jaw were found west of Fairbanks, Alaska, in the Tanana River Valley in 1975, until the fall of 2024 when it was donated to the Runestone Museum in Alexandria.

The museum also holds the controversial Kensington Runestone, proposed to provide evidence of pre-Columbian trans-Atlantic contact in Minnesota.

runestonemuseum.org

#CitizenScience#Pleistocene#Molar
💧🌏 Greg Cocks

Scientists Uncover Evidence Of A Colossal MegaFlood That Refilled The Mediterranean Sea
--
scitechdaily.com/scientists-un <-- shared technical article
--
doi.org/10.1038/s43247-024-019 <-- shared paper
--
#GIS #spatial #mapping #remotesensing #Zanclean #megaflood #flood #flooding #Mediterranean #MediterraneanSea #MessinianSalinityCrisis #italy #sicily #spatialanalysis #erosion #geology #engineeringgeology #naturaldisaster #sedimentation #deposition #ridge #morphology #geomorphology #geomorphometry #spatialanalysis #model #deposits #breccia #sediment #softsediment #geologichistory #seismology #geophysics #seismics #geophysical #pleistocene #hydrodynamic #model #water #hydrology

Replied in thread
Radical Anthropology

An earlier review of 2022 studies on #Neanderthal #family life. Social structure according to #genetics looks like #patrilocal with #females moving out of groups.

We are close to 💯 per cent certain that #Homosapiens did the exact opposite -- daughters stayed with their mums, and sons-in-law came into the group to do #brideservice. We are so sure here because it's what #African #huntergatherers do. As a result, our lineage flourishes (thanks to grandmothers), Neanderthals dwindled (lack of grandmothers?) and numerous Neanderthal women could have moved into the incoming African origin groups.

#humanorigins #anthropology #Pleistocene #kinship

cell.com/current-biology/fullt

Jens Notroff

Wait, is this a 35,000 y/o saber-toothed cat mummy from the Upper #Pleistocene permafrost in NE Yakutia?

Why, yes - this is a 35,000 y/o saber-toothed cat mummy from the Upper Pleistocene permafrost in NE Yakutia! 🙀😲

A. V. Lopatin et al., Sci Rep 14, 28016 (2024) 🔓 nature.com/articles/s41598-024

NatureMummy of a juvenile sabre-toothed cat Homotherium latidens from the Upper Pleistocene of Siberia - Scientific ReportsThe frozen mummy of the large felid cub was found in the Upper Pleistocene permafrost on the Badyarikha River (Indigirka River basin) in the northeast of Yakutia, Russia. The study of the specimen appearance showed its significant differences from a modern lion cub of similar age (three weeks) in the unusual shape of the muzzle with a large mouth opening and small ears, the very massive neck region, the elongated forelimbs, and the dark coat color. Tomographic analysis of the mummy skull revealed the features characteristic of Machairodontinae and of the genus Homotherium. For the first time in the history of paleontology, the appearance of an extinct mammal that has no analogues in the modern fauna has been studied.
AltonDooley

Today is #NationalFossilDay! Over my career, I’ve been an author or coauthor in naming five new fossil species: the #Miocene baleen #whale Eobalaenoptera harrisoni (2004), the Miocene toothed whale Squalodon whitmorei (2005), the Triassic gliding reptile Mecistotrachelos apeoros (2007), the #Cretaceous #tyrannosaur Dynamoterror dynastes (2018), and the #Pleistocene Pacific #mastodon Mammut pacificus (2019).

#paleontology #fossil #taxonomy #scicomm @westernsciencecenter

Chuck Darwin

Restoring America's Big, Wild Animals

#Pleistocene #Rewilding
-- a proposal to bring back animals that disappeared from North America 13,000 years ago
--offers an optimistic agenda for 21st-century conservation

In the fall of 2004 a dozen conservation biologists gathered on a ranch in New Mexico to ponder a bold plan.

The scientists, trained in a variety of disciplines, ranged from the grand old men of the field to those of us earlier in our careers.
The idea we were mulling over was the reintroduction of large vertebrates. -- #megafauna
-- to North America.

Most of these animals,
such as mammoths and cheetahs,
died out roughly 13,000 years ago,
when humans from Eurasia began migrating to the continent.

The theory
-- propounded 40 years ago by 🔹Paul Martin🔹 of the University of Arizona
-- is that overhunting by the new arrivals reduced the numbers of large vertebrates so severely that the populations could not recover.

Called #Pleistocene #overkill,
the concept was highly controversial at the time,
but the general thesis that humans played a significant role is now widely accepted.

Martin was present at the meeting in New Mexico,
and his ideas on the loss of these animals,
the ecological consequences,
and what we should do about it
formed the foundation of the proposal that emerged,
which we dubbed
⭐️Pleistocene rewilding.⭐️

scientificamerican.com/article

Scientific American · Restoring America's Big, Wild AnimalsBy C. Josh Donlan
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