• amniote fossils

    From Popping Mad@21:1/5 to All on Wed Apr 12 00:25:32 2023
    https://www.cnn.com/2021/11/05/world/fossil-skeleton-discovered-canyonlands-scn/index.html

    300 million-year-old fossil skeleton in Utah could be the first of its kind Sherry Liang
    5–7 minutes
    Scientists collect a 300 million-year-old fossil skeleton at Canyonlands National Park in Utah.

    CNN —

    An approximately 300 million-year-old fossil skeleton discovered at
    Canyonlands National Park in Utah could be the first of its kind,
    researchers say.

    The exact species and classification have yet to be determined, but the
    fossil is a tetrapod – meaning animal with four legs – and could be an early ancestor of either reptiles or mammals. Paleontologists have
    determined the fossil could be anywhere from 295 million to 305 million
    years old, between the Pennsylvanian and the Permian geologic time periods.

    “It’s a phenomenal specimen. You do not see something like that very
    often, so it’s really significant for that in itself,” said Adam Marsh, lead paleontologist at Petrified Forest National Park in Arizona. “But
    what it indicates is that there’s probably more fossils out there,
    especially at Canyonlands, in this really important time interval.”
    The fossil discovery at Canyonlands National Park was a rare intact
    skeleton.

    A team of scientists and paleontologists from Petrified Forest, the
    Natural History Museum of Utah and the University of Southern California
    helped collect the fossil from Canyonlands.

    The fossil was found as a complete skeleton, and the bones were in their “life positions,” meaning the same position as when the animal was alive.

    This fossil appears to be an early amniote, which is a land-living
    vertebrate that lays eggs, according to Adam Huttenlocker, an outside specialist on the team who researches early tetrapod fossils and is an assistant professor at USC. The complete skeleton allows scientists to
    analyze the evolution of amniotes, in addition to the ancestors of early reptiles and mammals.

    This area of Canyonlands hasn’t produced amniote fossils in the ancient
    rock formation the fossil was found in, so Huttenlocker said there’s a
    good chance this fossil represents a new species of early amniote.

    A park ranger at Canyonlands reported the fossil around October 2020.
    After the research permit was processed, the team collected the fossil a
    year later, on October 23 of this year.

    Matthew Van Scoyoc said this was the first time he’s seen anyone apply
    for a research permit to extract a fossil in his four years as the
    research coordinator of the National Park Service’s Southeast Utah
    Group, which includes Canyonlands. He coordinates research and provides
    permits for these parks, but excavating hasn’t been a part of the job – until now.

    “I never thought I’d get to go on a fossil excavation in my life, and
    that was just really, really cool,” Van Scoyoc said.

    The excavation took an entire day, Van Scoyoc said. The team hiked 13
    miles roundtrip into the backcountry, extracted the fossil in two pieces
    and hiked back with a skeleton in their backpacks. (The fossil’s
    original location, Lost Canyon, is designated as a wilderness area by
    the National Park Service, so no motorized vehicles were allowed.)

    The fossil is now at the Petrified Forest fossil preparation lab for
    tests and scans of the skeleton and skull. After scientists determine
    the species, which could take at least a year, Marsh said the fossil
    will remain with the National Park Service for further research and
    museum exhibits.

    There is a possibility that this fossil is a new species, which is rare
    – Marsh said some paleontologists go their entire careers without a
    discovery of that kind. But even if the fossil turns out to be a known
    species, Marsh said this finding is still significant for understanding
    the biodiversity of that time.

    Fossil specimens from aquatic animals like shark spines are common finds
    at Canyonlands, especially along the river, but Huttenlocker said this
    is the first time he has been notified of a land-living vertebrate fossil.

    “This is a rare, once-in-a-lifetime opportunity for me,” Huttenlocker said.

    The fossil was at risk for erosion from rain and water, which is why Van
    Scoyoc said they issued the permit. Canyonlands does not have any paleontologists on staff, so they outsourced paleontologists from
    Petrified Forest, which is known for its fossils.

    “Fossils themselves are probably not that rare in Canyonlands. It’s
    just, we haven’t looked for them thoroughly,” Van Scoyoc said. “What’s happening now is we, as the National Park Service, are able to consider
    them more.”
    The ancient skeleton researchers collected at Canyonlands National Park
    was from an amniote, or land-living vertebrate that lays eggs.

    National park sites are full of undiscovered fossils, Marsh said. The collaboration between park staff and researchers from different parks
    and institutions is integral, he said, to their discovery.

    “We’re just now scraping the surface about nuts-and-bolts paleontology,” Marsh said.

    You can channel your inner paleontologist next time you’re at a national park. Marsh said if you think you see a fossil – don’t try excavating it yourself – send a picture and location to park staff.

    “This is exactly how we find things that we don’t know about otherwise, because we’re not always able to get out to certain areas all the time,” Marsh said. “It’s helpful for folks to let us know what they see.”

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  • From erik simpson@21:1/5 to Popping Mad on Wed Apr 12 10:14:36 2023
    On Tuesday, April 11, 2023 at 9:25:44 PM UTC-7, Popping Mad wrote:
    https://www.cnn.com/2021/11/05/world/fossil-skeleton-discovered-canyonlands-scn/index.html

    300 million-year-old fossil skeleton in Utah could be the first of its kind Sherry Liang
    5–7 minutes
    Scientists collect a 300 million-year-old fossil skeleton at Canyonlands National Park in Utah.

    CNN —

    An approximately 300 million-year-old fossil skeleton discovered at Canyonlands National Park in Utah could be the first of its kind, researchers say.

    The exact species and classification have yet to be determined, but the fossil is a tetrapod – meaning animal with four legs – and could be an early ancestor of either reptiles or mammals. Paleontologists have determined the fossil could be anywhere from 295 million to 305 million years old, between the Pennsylvanian and the Permian geologic time periods.

    “It’s a phenomenal specimen. You do not see something like that very often, so it’s really significant for that in itself,” said Adam Marsh, lead paleontologist at Petrified Forest National Park in Arizona. “But what it indicates is that there’s probably more fossils out there, especially at Canyonlands, in this really important time interval.”
    The fossil discovery at Canyonlands National Park was a rare intact skeleton.

    A team of scientists and paleontologists from Petrified Forest, the
    Natural History Museum of Utah and the University of Southern California helped collect the fossil from Canyonlands.

    The fossil was found as a complete skeleton, and the bones were in their “life positions,” meaning the same position as when the animal was alive.

    This fossil appears to be an early amniote, which is a land-living vertebrate that lays eggs, according to Adam Huttenlocker, an outside specialist on the team who researches early tetrapod fossils and is an assistant professor at USC. The complete skeleton allows scientists to analyze the evolution of amniotes, in addition to the ancestors of early reptiles and mammals.

    This area of Canyonlands hasn’t produced amniote fossils in the ancient rock formation the fossil was found in, so Huttenlocker said there’s a good chance this fossil represents a new species of early amniote.

    A park ranger at Canyonlands reported the fossil around October 2020.
    After the research permit was processed, the team collected the fossil a year later, on October 23 of this year.

    Matthew Van Scoyoc said this was the first time he’s seen anyone apply
    for a research permit to extract a fossil in his four years as the
    research coordinator of the National Park Service’s Southeast Utah
    Group, which includes Canyonlands. He coordinates research and provides permits for these parks, but excavating hasn’t been a part of the job – until now.

    “I never thought I’d get to go on a fossil excavation in my life, and that was just really, really cool,” Van Scoyoc said.

    The excavation took an entire day, Van Scoyoc said. The team hiked 13
    miles roundtrip into the backcountry, extracted the fossil in two pieces
    and hiked back with a skeleton in their backpacks. (The fossil’s
    original location, Lost Canyon, is designated as a wilderness area by
    the National Park Service, so no motorized vehicles were allowed.)

    The fossil is now at the Petrified Forest fossil preparation lab for
    tests and scans of the skeleton and skull. After scientists determine
    the species, which could take at least a year, Marsh said the fossil
    will remain with the National Park Service for further research and
    museum exhibits.

    There is a possibility that this fossil is a new species, which is rare
    – Marsh said some paleontologists go their entire careers without a discovery of that kind. But even if the fossil turns out to be a known species, Marsh said this finding is still significant for understanding
    the biodiversity of that time.

    Fossil specimens from aquatic animals like shark spines are common finds
    at Canyonlands, especially along the river, but Huttenlocker said this
    is the first time he has been notified of a land-living vertebrate fossil.

    “This is a rare, once-in-a-lifetime opportunity for me,” Huttenlocker said.

    The fossil was at risk for erosion from rain and water, which is why Van Scoyoc said they issued the permit. Canyonlands does not have any paleontologists on staff, so they outsourced paleontologists from
    Petrified Forest, which is known for its fossils.

    “Fossils themselves are probably not that rare in Canyonlands. It’s just, we haven’t looked for them thoroughly,” Van Scoyoc said. “What’s
    happening now is we, as the National Park Service, are able to consider
    them more.”
    The ancient skeleton researchers collected at Canyonlands National Park
    was from an amniote, or land-living vertebrate that lays eggs.

    National park sites are full of undiscovered fossils, Marsh said. The collaboration between park staff and researchers from different parks
    and institutions is integral, he said, to their discovery.

    “We’re just now scraping the surface about nuts-and-bolts paleontology,”
    Marsh said.

    You can channel your inner paleontologist next time you’re at a national park. Marsh said if you think you see a fossil – don’t try excavating it yourself – send a picture and location to park staff.

    “This is exactly how we find things that we don’t know about otherwise, because we’re not always able to get out to certain areas all the time,” Marsh said. “It’s helpful for folks to let us know what they see.”

    Cool discovery, but whether it's the "first of it's kind" will have to wait for a detailed description, even
    to tell whether it's before of after the synapsid-sauropsid diveregence. There are many stem clades
    within Sauropsida that fall outside crown Reptilia that are not diapsid.

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