Uncommon Ice Age mastodon tooth discovered by scientist in San Mateo County, California
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A scientist surveying a California creek just lately stumbled throughout one thing surprising: a tooth from the mouth of an Ice Age big.
The discovery of the tooth, which belonged to an historical Pacific mastodon, was introduced by the Midpeninsula Regional Open Space District (Midpen) in San Mateo County, California.
Mastodons have been large, elephant-like herbivores that went extinct roughly 11,700 years in the past, close to the top of the final Ice Age.
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The tooth was present in a Midpen protect creek by Brigid Lynch, a Balance Hydrologics geomorphologist who was surveying the realm as a part of an effort to enhance the habitat of the threatened California red-legged frog.
“As a geologist, I’ve gone out and seen stuff within the area, however positively nothing as thrilling as this,” Lynch mentioned in a launch.
Geomorphologist Brigid Lynch, pictured at proper, found the mastodon tooth whereas surveying an space for habitat enhancements for the threatened California red-legged frog. (Balance Hydrologics)
Pictures of the molar present its unusual form, which Lynch initially thought was an oddly formed rock.
The tooth is in “immaculate situation,” Wayne Thompson, CEO of Pacific Paleontology, advised Fox News Digital in an interview.
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Thompson, whose job it was to examine the fossil and assess the location the place it was found, mentioned the tooth probably dates again between 50,000 and 100,000 years, based mostly on the place it was discovered.
“It would not occur usually. … [It’s] fairly unusual.”
“There is loads of misinformation going round concerning the age of the tooth,” he mentioned. “Most of the experiences out [there] are saying it is 10,000 years outdated, but it surely’s not 10,000 years.
“From the placement the place the specimen was discovered, we are able to fairly confidently say that it’s a lot, a lot older than 11,700 years — in all probability on the order between 50 and 100,000 years,” he added.
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Thompson mentioned the situation of the tooth additionally presents clues about what occurred to it after the mastodon died, noting that it “hadn’t moved very a lot within the stream the place the creature died.”
“Mastodon enamel are — the roots are extraordinarily fragile — and this one had nearly all of the roots of the molar nonetheless preserved with it intact, and so, it wasn’t tumbled round within the stream,” he mentioned.
The historical molar was present in a Midpeninsula Regional Open Space District protect in San Mateo County, California. (Balance Hydrologics)
The paleontologist believes the remainder of the animal should be at the site.
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“It in all probability just lately got here out of the cranium and the cranium, together with the remainder of the bones, are nonetheless buried on the market,” he mentioned.
The unusually well-preserved mastodon tooth could have just lately separated from a cranium that is still buried on the discovery website. (Midpeninsula Regional Open Space District)
It is “extraordinarily uncommon” to discover a mastodon molar in such well-preserved situation, Thompson mentioned.
“It would not occur usually. … [It’s] fairly unusual,” he mentioned.
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Looking forward, researchers from Stanford University’s Doerr School of Sustainability plan to carbon date the molar to determine its exact age.
Researchers can even create a 3-D scan of the tooth, which will likely be used to supply a duplicate.
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Thompson mentioned mastodons favored creek and river valleys, looking on leaves slightly than grazing on grasses as mammoths did.
Pacific Paleontology CEO Wayne Thompson, proven in overalls and beard, described the mastodon tooth as being in “immaculate situation” after he examined the uncommon fossil. (Midpeninsula Regional Open Space District)
Alder timber, he mentioned, have been amongst their most popular meals sources — and so they nonetheless line the creek the place the tooth was discovered.
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“Even right now, once we went out to the location to examine the place the organic monitor was surveying, there have been nonetheless a whole lot of alders alongside the stream,” Thompson mentioned.
