#Mammut americanum

[wolvenhunter]

Mammut americanum, or the American mastodon. This display is at the Memphis Museum of Science & History (MoSH) in Memphis, Tennessee.

[cmipalaeo]

The Burning Tree mastodon is a very late and very complete mastodon that preserved gut contents along with its skeleton. The date here is incorrect, though — it was found in 1989.

Burning Tree Mastodon excavation site, 2006-12-12

[amnhnyc]

This Fossil Friday, meet the Warren mastodon: the first complete American mastodon (Mammut americanum) skeleton found in the United States! This fossilized proboscidean was discovered in a bog in Newburgh, New York in 1845. It was remarkable for being preserved in the position in which it had died some 11,000 years ago—standing upright with its legs thrust forward and its head tilted upward, likely gasping for air under mud in which it had become mired. Shortly after its excavation, the Warren mastodon’s tusks began to decay. But thanks to Museum preparators, the tusk fragments were reassembled and restored to their proper length of 8 ft 6 in (2.6 m).

See the Warren mastodon up close in the Hall of Advanced Mammals! The Museum is open daily from 10 am–5:30 pm. Plan your visit.

Photo: D. Finnin / © AMNH

[doomandgloomfromthetomb]

Kevin Coleman - Imaginary Conversations

Absorbing and inviting explorations from Nashville's Kevin Coleman. The three lengthy tracks here are guitar-centric at first blush, but they take you in a lot of different directions, weaving fiddle, bowed banjo, pedal steel, synth, jaw harp, even wine glasses into the mix. Imaginary Conversations kicks off with the very earthy "Mammut Americanum" but Coleman isn't afraid to head into other universes; the album closes with a fairly miraculous kosmische workout. As Stefan "Golden Brown" Beck says: "If the Autobahn took you through a portal to Tennessee, this would be the soundtrack."

[nerdiqueen]

stretches, clears throat

alright sit down, strap in, get your popcorn! time to talk about my all-time FAVORITE dig site!

the cerutti mastodon (located in san diego county, california, us) is named after richard cerutti, a paleontologist credited with the discovery of the site. the fossilized remains of a juvenile male mastodon (mammut americanum) were found at the site. an unusually high number of the bones are broken, and the type of break and markings on the bones indicate that they may have been broken open by hominins (category of human-like creatures) using hammer-stones. additionally, the fossil is located in a silt layer (which means lots of soft rock and no large stones [aka cobbles]), but the bones were collected around a few cobbles. sounds like your typical hominin kill site, right?

one small issue.

the one thing that everyone can agree on- even crtics of the site- is that this mastodon died 130,700 years ago. if you don't see the problem there, let me give you a bit of context: the most commonly held current theory as to how homo sapiens got to north america has us coming over the bering land bridge along the shore, surviving off of a kelp forest. 19,000 to 26,000 years ago.

if the cerutti mastodon is what it seems to be- a hominin kill site- that pushes back the date of hominins arriving in north america over a hundred thousand years. not just north america, either- california. taking into account how long it'd take to get from alaska to california on foot? that's insane.

long story short, this site is absolutely ridiculous.

wikipedia article for more information & sourcing

[13melekradyo]

27 Nisan 2024 tarihli program kaydı.

Güncel folk kayıtlarından bir seçki // A selection of recent folk recordings. Download.

01 – Jessica Pratt – Life Is 02 – Faye Webster – eBay Purchase History 03 – Grace Cummings – Without You 04 – Bill MacKay – Keeping In Time 05 – Andy Acquarius – Waters Above, Waters Below 06 – Six Organs Of Admittance – New Year's Song 07 – Jim White and Marissa Anderson – Bitterroot Valley Suite I Water 08 – Black Brunswicker – This Bodily Curse 09 – Magic Tuber String Band – Needlefall 10 – Raoul Eden – Will Never Die (Improvisation) 11 – Kevin Coleman – Mammut Americanum

[sobeksintern]

The idea isn’t that these animals were all docile, but that they did not inherently recognize humans as predators and that there would have been an adjustment period required before they could do that. Something worth noting is that there were other human species in Eurasia before ours left Africa that would have applied hunting pressure to those large mammals. Not all of them made it, but there was a lower extinction rate for large mammals in both Africa and Eurasia when compared to Australia and the Americas. 

There are also a lot of other things humans can do besides over-hunting that could wipe out entire species. It has also been suggested that introduced fires also played a huge role. Pre–Younger Dryas megafaunal extirpation at Rancho La Brea linked to fire-driven state shift

We seem to have eaten our way down the food web.

Something else to keep in mind is just how many things went extinct that just cannot be explained by any recorded environmental shifts at the time. There were at least seven different species of American elephants & elephant relatives that went extinct in the Holocene: Mammuthus primigenius (survived on an island until 2000 BCE), Mammuthus columbi, Mammuthus exilis, Mammut americanum, Mammut Pacificus, Notiomastodon platensis, Cuvieronius hyodon. What else could take out all these different elephants? Woolly mammoths preferred grasslands that would have been in decline, but Mastodons preferred the forests that would have expanded in the Holocene. While the woolly mammoth liked the cold, the columbian mammoth preferred tropical to temperate habitats, habitats that expanded in range during the early Holocene. And that’s just looking at the elephants.

We may not know exactly how this all played out but it seems very naive to pretend our species is completely innocent here.

Bison would also be a terrible example to choose from, because bison survived in the Americas and in Eurasia in incredible numbers. Textbook survivorship bias.

Pleistocene extinction is an uncomfortable topic for me because the causes are not fully understood, but the likelihood that humans played a role in the extinction of Pleistocene megafauna brings out a nasty side of people where they're like "as you can see, humans kill everything they touch and destroy ecosystems wherever they go"

In particular they are often specifically talking about megafauna of the Americas, Australia, Madagascar or other islands. (this idea is usually paired with talking about people crossing the Beringia land bridge). It's all the exact places where indigenous peoples have been trying to assert their rights to their own land

Furthermore, the "holocene extinction" idea treats the current biodiversity crisis created by colonialism and capitalism as equal to the extinction when the Ice Age ended.

If we accept the proposition that the end-Pleistocene extinctions were caused by humans and that this quality means all of the "Holocene extinction" shares a common cause, that treats environmental destruction and exploitation as a fundamental effect of human presence, instead of a result of policies and systems of power that are not inevitable.

[jhavelikes]

Bone fragments embedded in a rib of a mastodon (Mammut americanum) from the Manis site, Washington, were digitally excavated and refit to reconstruct an object that is thin and broad, has smooth, shaped faces that converge to sharp lateral edges, and has a plano-convex cross section. These characteristics are consistent with the object being a human-made projectile point. The 13,900-year-old Manis projectile point is morphologically different from later cylindrical osseous points of the 13,000-year-old Clovis complex. The Manis point, which is made of mastodon bone, shows that people predating Clovis made and used osseous weapons to hunt megafauna in the Pacific Northwest during the Bølling-Allerød.

Late Pleistocene osseous projectile point from the Manis site, Washington—Mastodon hunting in the Pacific Northwest 13,900 years ago | Science Advances

[cmipalaeo]

Showing some boob on main 😏

[pleistocene-pride]

Mammut americanum or more commonly known as the American mastodon is one of the best known and among the last surviving species of Mastodon with its earliest occurrences dating from the middle Pliocene around 3.5 million years ago. The first remains of this species are attributed to a 5.5 lb tooth recovered from Claverack, New York, in 1705. The mysterious animal became known as the "incognitum" with several speculations proposed for what it was ranging from monstrous predators, to dragons, to even giants from biblical myth. In 1739 French soldiers at present-day Big Bone Lick State Park, Kentucky, found the first bones to be collected and studied scientifically. Similar teeth to the 1705 specimen were found in South Carolina where some enslaved African people recognized them as being similar to the teeth of modern elephants.  After this People started referring to the "incognitum" as a "mammoth", like the ones that were being dug out of the Siberia permafrost and in 1796 the French scientist Georges Cuvier proposed the radical idea that mammoths were not simply elephant bones that had been somehow transported north, but species which no longer existed. Johann Friedrich Blumenbach assigned the scientific name Mammut to the American "incognitum" remains in 1799, under the assumption that they belonged to mammoths. Other anatomists noted that the teeth of mammoths and elephants differed from those of the "incognitum", which possessed rows of large conical cusps, indicating that they were dealing with a distinct species. In 1817 Cuvier named the "incognitum" Mastodon. Today the American Mastodon is known from fossil sites ranging from Alaska, Ontario and New England in the north, to Florida, southern California, and as far south as Honduras. Standing between 7 to 10 ft tall at the shoulder, and weighing between 7 and 9 tons, Mastodons were very similar in appearance to elephants and, to a lesser degree, mammoths, though not closely related to either one. Compared to mammoths, mastodons had shorter legs, a longer body, a denser, more robust skeleton, a low and long skull, and longer less curved tusks. However, the most significant difference is the shape and function of their teeth, in mammoths and elephants the teeth have a nearly flat surface, used for grinding and sheering grass. American mastodon molars instead sport rounded cusps covered in hard enamel that formed a pair of rows, which were instead used for snapping and chewing the branches and leaves of trees and shrubs. These forest dwelling proboscideans frequented the woodlands and forests of North and Central America until a combination of changing climate and overhunting by early humans drove them to extinction roughly 10,500 years ago.

Art can be found at the links below:

American Mastodon Herd: https://tr.pinterest.com/pin/67905906868556463/

American Mastodon: https://www.beringia.com/exhibit/ice-age-animals/american-mastodon

American mastodon herd under northern lights: https://www.courthousenews.com/as-earth-warmed-ancient-mastodons-headed-far-north/

[cmipalaeo]

That’s a nice-looking tooth! Get a L/W ratio off that sucker!

Now excuse me while I ramble on in the tags.....

CrittercatcherMeg on TikTok found this mastodon tooth!

Posting here because I find Tumblr’ers to be a little less likely to shout completely misinformed comments than TikTokers, who mostly think it’s fake because they either don’t know bones (which is inherently fine!) or are jealous (hell I’m jealous too!)

It’s ok if you don’t know stuff about animal remains! But here is some info before making false claims:

This is not fossilized (meaning it’s not replaced by rock, but you can call it “a fossil”)

Florida rivers are actually quite good at preserving ancient bones

People find like, six of these a year in FL

A museum probably wouldn’t care for this because they have enough

Many have insisted that “it’s plastic from Amazon” but no one has been able to find a remotely similar replica. If you look, compare the wear, the length and angles of the roots, and the sharpness of the second root. Or even just the color and texture, damn

And if you don’t believe me or OP here is a Florida paleontologist confirming.

[dino-sours]

The Marshalls Creek mastodon was excavated from a commercial peat mine in 1968. It’s been on display at the State Museum of Pennsylvania ever since, originally as a relief mount and more recently as a complete, free-standing mount. The tail was damaged while the animal was alive by a crushing and/or twisting force, perhaps in a fight with another mastodon.

[amnhnyc]

This Fossil Friday, meet the Warren mastodon: the first complete American mastodon (Mammut americanum) skeleton found in the United States! This fossilized proboscidean was discovered in a bog in Newburgh, New York in 1845. It was remarkable for being preserved in the position in which it had died some 11,000 years ago—standing upright with its legs thrust forward and its head tilted upward, likely gasping for air under mud in which it had become mired.

Photo: Image no. 35140 / © AMNH Library (circa 1906)

[lychens]

Mammut americanum (American mastodon) (Pleistocene; Aucilla River, Jefferson County, Florida, USA)

[2whatcom-blog]

Mastodons to the Max

Max is a powerful mastodon. Reconstructed at Hemet, California's Western Science Heart, this Pleistocene superstar cuts an imposing Ice Age determine within the museum corridor. However Max is not fairly like different mastodons you could have seen. The beast is the prime instance of a brand new species - the primary new mastodon named in half a century. The American mastodon - Mammut americanum - is an actual rock star amongst prehistoric mammals. Even earlier than folks knew what this creature was, its stays impressed awe because the "American incognitum." The bones and enamel of the American mastodon additionally figured prominently in Georges Cuvier's well-known proof that extinction is a actuality on the finish of the 18th century. In time, although, it appeared that there was just one American mastodon that lived from coast to coast. From enamel rolled up onto the New Jersey shore to skeletons excavated from Midwest farms to the tar-soaked bones of La Brea, all have been Mammut americanum. However Max ended up being the keystone to a discovery that had been ready within the collections of the Western Science Heart. Described by paleontologist Alton Dooley and a group of 5 different researchers, Max and different mastodons west of the Sierra Nevada Mountains symbolize a distinct species. These Ice Age beasts are Mammut pacificus, the Pacific mastodon. The distinctive molars of those mastodons are a part of what units them aside. The grinders are constantly narrower than these of jap mastodons, Dooley and colleagues observe. Max and mates even have six vertebrae within the sacral portion of their hips, thigh bones which can be thicker within the center part, and lack the tiny decrease jaw tusks typically seen in Mammut americanum. To this point, Mammut pacificus has turned up all through California and in southern Idaho. The extra widespread Mammut americanum, which lived on the similar time, had a wider vary - from the Yukon by the Pacific northwest, the 4 Corners, and east to the Atlantic coast. (Mastodons that roamed Utah and Nevada, proper within the center, stay proper on the obvious boundary however must be reassessed.) The query is why the western mastodons break up off into their very own distinctive anatomical species. Although Mammut is an "Ice Age" mammal, this elephant was a forest browser that thrived in wetter, forested habitats. Mastodons typically weren't rubbing shoulders with woolly mammoths out on the grassy steppe. Provided that Mammut had "stringent" necessities for water and vegetation, Dooley and colleagues observe, it is doable that patchiness of western habitats - due to elevation adjustments, variations in native local weather, or related ecological boundaries - could have fostered isolation that allowed Mammut pacificus to evolve. The story of this beast is barely simply beginning to be informed. Now new mastodon has been acknowledged, there are dozens of inquiries to ask about how this species originated, why, whether or not it overlapped with Mammut americanum, and the circumstances below which these mastodons in the end disappeared. However there's a fair broader lesson to be gleaned from the invention. Mammut pacificus just isn't based mostly on a single specimen freshly dug out of the bottom. The stays of Max and mates have been unearthed within the 1990s as a part of the Diamond Valley Lake excavations to rescue fossils through the creation of the reservoir. These animals have been assumed to be Mammut americanum earlier than Dooley and colleagues observed that Max's molars have been awfully small for the skeleton's dimension, resulting in a broader investigation that underscored that the fossils on the Western Science Heart - and elsewhere - represented a species that had been hiding in museum drawers all this time. Moments of thrilling discovery do not at all times occur out within the discipline. Slightly than choose and shovel, typically discovering a brand new species depends on persistence and asking the suitable questions. Read the full article