Christian Kammerer

@Synapsida

Paleontology curator at the North Carolina Museum of Natural Sciences. Specialist in Permo-Triassic vertebrates and assorted arcana.

Vrijeme pridruživanja: lipanj 2012.

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  1. proslijedio/la je Tweet
    31. sij

    For this is a metapodial (hand bone) from a ~7 million year old Hipparion horse from Kyrgyzstan! Also illustrates some of the strange and cool preservation I get at this site. White is a quartz geode that has taken over the bone marrow cavity of the bone!

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  2. proslijedio/la je Tweet
    31. sij

    Thanks to and for contributing of early tetrapodomorphs such as . Check out the paper () and the project () on the fin-to-limb transition

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  3. proslijedio/la je Tweet
    31. sij

    Thalattosaurus borealis, Parlonectes and Agkistrognathus for in all their face-smashed glory. Like these jobs from the collections of , most North American thalattosaurus are semi-articulated trainwrecks, at best. But not all. Stay tuned...

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  4. proslijedio/la je Tweet
    31. sij

    What an adorable fossil for ! Despite its cute, teddy bear shape, it’s actually a neck bone from Cryodrakon boreas (“cold dragon of the north winds”), a formidable pterosaur that would have rivaled giraffes in both height and neck length.

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  5. proslijedio/la je Tweet
    31. sij

    This highlight is a new addition to our collection, the Hippurites radiosus. It may look like coral, but this is actually a prehistoric rudist clam. Just like coral, these were ancient reef builders.

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  6. proslijedio/la je Tweet
    31. sij

    For our mash-up, here's a burrowing HORNED rodent, Ceratogaulus hatcheri. It lived ~6 MYA in Kansas and belongs to a group of rodents that includes squirrels and groundhogs. Its closest *living* relative is the mountain beaver Aplodontia rufa.

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  7. proslijedio/la je Tweet
    31. sij

    New article! The Great American Biotic Interchange through the stable isotope record of Argentine Pampas fossil mammals. Check our new paper:

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  8. proslijedio/la je Tweet
    30. sij

    Our big story of the day is this amazing Brachiosaurus humerus found back in May. This past October John and our family went out and collected it. It was exciting to work on one. Stay tuned for photos!

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  9. proslijedio/la je Tweet
    31. sij

    To commemorate and to remember that we’re residents of a topographic high on the western margin of the European continental shelf, here’s a very early European - the Gibraltar Neanderthal - there were few barriers to movement when this person was alive

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    Distal phalanges of a Ceratopsian, or horned dinosaur, called Leptoceratops. The bones would have been covered with a hoof-like claw when it was alive. Leptoceratops was a small dinosaur, 6-7 ft long, weighing 150-450 lbs., that lived about 66 million years ago.

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  11. proslijedio/la je Tweet
    31. sij

    Happy ! The next time you visit the Museum of the Earth, look for our giant, paperclip-shaped specimen of the heteromorph ammonite Diplomoceras maximum from Cretaceous-aged rocks from Seymour Island, Antarctica. Learn more:

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  12. proslijedio/la je Tweet
    31. sij

    Muy guapa : "Surviving the Cretaceous-Paleogene mass extinction event: A terrestrial stem turtle in the Cenozoic of Laurasia" by Un primitivo linaje de que engaño a la del escondida en

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  13. 31. sij

    The juvenile skull (once "E. anatinus") is very interesting--the skull is much taller than in the flattened adult, more like a dissorophoid. Also the orbits are proportionally smaller than the adult, opposite usual tetrapod allometry.

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  14. 31. sij

    Adult (Cope's original holotype!) and juvenile skulls of one of my very favorite animals: the lower Permian amphibian Eryops megacephalus from Texas.

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  15. proslijedio/la je Tweet
    30. sij
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  16. proslijedio/la je Tweet
    31. sij

    With the study of the inner skull cavities of this airhead, the neuroanatomy of the basal eusuchians from Lo Hueco is almost finished. Special thanks to , , and .

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  17. proslijedio/la je Tweet
    24. sij

    Eurypterids, also known as sea scorpions, were important shallow-water predators during the middle of the Paleozoic era. This specimen (Dolichopterus macrocheirus), which is on display at the Museum of the Earth, is from the Silurian period of Herkimer County, NY.

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  18. proslijedio/la je Tweet
    24. sij

    For shout out to so many welcoming amphibians for first week as a postdoc

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  19. proslijedio/la je Tweet
    24. sij

    One of my favourite eurypterid fossils for This is Carcinosoma, from the Silurian of Indiana. This amazing specimens preserves most of the body, including the addles and spiny appendages. The round structures in the body are the gills!

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  20. proslijedio/la je Tweet
    24. sij

    Another in Johannesburg, seeing more of the collections This week I'd like to introduce a lovely postcranial skeleton of Orthosuchus stormbergi, a crocodylomorph from the Lower Jurassic of South Africa (see Dollman et al 2019 for more)

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