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Christian Kammerer proslijedio/la je Tweet
For
#FossilFriday 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!pic.twitter.com/fXcG5yOP25
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Christian Kammerer proslijedio/la je Tweet
Thanks to
@TomDoesScience@NeilShubin@Justin_Lemberg and@BioProfessorMom for contributing#CTscans of early tetrapodomorphs such as#tiktaalik. Check out the paper (http://bit.ly/FinToLimbPub ) and the project (http://bit.ly/FinToLimb3d ) on the fin-to-limb transition#FossilFridaypic.twitter.com/lBPC8Ex4i2
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Christian Kammerer proslijedio/la je Tweet
Thalattosaurus borealis, Parlonectes and Agkistrognathus for
#FossilFriday in all their face-smashed glory. Like these jobs from the collections of@RoyalTyrrell, most North American thalattosaurus are semi-articulated trainwrecks, at best. But not all. Stay tuned...pic.twitter.com/wFOQV3rXiE
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Christian Kammerer proslijedio/la je Tweet
What an adorable fossil for
#FossilFriday! 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.@RoyalTyrrell#palaeontologypic.twitter.com/FbVSUjOHhX
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Christian Kammerer proslijedio/la je Tweet
This
#FossilFriday 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.@umichUMORFpic.twitter.com/usUpqx0AwH
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Christian Kammerer proslijedio/la je Tweet
For our
#FossilFriday#GroundhogDay 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.pic.twitter.com/DRVK9bzE5G
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Christian Kammerer proslijedio/la je Tweet
New article! The Great American Biotic Interchange through the stable isotope record of Argentine Pampas fossil mammals. Check our new paper:https://www.nature.com/articles/s41598-020-58575-6 …
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Christian Kammerer proslijedio/la je Tweet
Our big story of the day is this amazing Brachiosaurus humerus
@BrianEngh_Art found back in May. This past October@SV_POW@Yara_Haridy@BrianEngh_Art John and our family went out and collected it. It was exciting to work on one. Stay tuned for photos!https://www.abc.net.au/news/science/2020-01-30/rare-two-metre-long-dinosaur-bone-unveiled-brachiosaurus/11910130 …Hvala. Twitter će to iskoristiti za poboljšanje vaše vremenske crte. PoništiPoništi -
Christian Kammerer proslijedio/la je Tweet
To commemorate
#FossilFriday 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@NHM_London - there were few barriers to movement when this person was alivepic.twitter.com/AtwubcjBGC
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Christian Kammerer proslijedio/la je Tweet
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.
#FossilFridaypic.twitter.com/3XYUaYHjDy
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Christian Kammerer proslijedio/la je Tweet
Happy
#FossilFriday! 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: https://www.museumoftheearth.org/exhibit/heteromorph-ammonite …pic.twitter.com/1B3Vd4cxAn
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Christian Kammerer proslijedio/la je Tweet
Muy guapa
#Laurasichersis: "Surviving the Cretaceous-Paleogene mass extinction event: A terrestrial stem turtle in the Cenozoic of Laurasia" https://www.nature.com/articles/s41598-020-58511-8 … by@Tortugologo Un primitivo linaje de#tortugas que engaño a la#extinción del#Cretácico escondida en#Franciapic.twitter.com/QHna3UkLwO
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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.pic.twitter.com/1eWq64pLiP
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Adult (Cope's original holotype!) and juvenile skulls of one of my very favorite animals: the lower Permian amphibian Eryops megacephalus from Texas.
#FossilFridaypic.twitter.com/drQx6u6yqi
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Christian Kammerer proslijedio/la je Tweet
#firewalkers
Fossil footprints show how life endured amid volcanic eruptions 183 million years ago @EmeseBordy@dinotrackers https://theconversation.com/fossil-footprints-show-how-life-endured-amid-volcanic-eruptions-183-million-years-ago-130215?utm_source=twitter&utm_medium=footertwitterbutton … via@TC_AfricaHvala. Twitter će to iskoristiti za poboljšanje vaše vremenske crte. PoništiPoništi -
Christian Kammerer proslijedio/la je Tweet
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
@FabienKnoll,@inarvaezp,@PalaeoStephan and@frco_ortega. https://onlinelibrary.wiley.com/doi/abs/10.1002/spp2.1296 …pic.twitter.com/PXVpkTP7o8
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Christian Kammerer proslijedio/la je Tweet
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.
#FossilFridaypic.twitter.com/boxxkXpZnB
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Christian Kammerer proslijedio/la je Tweet
For
#FossilFriday shout out to so many welcoming amphibians for first week as a postdoc@MCZpaleopic.twitter.com/dqulvAG1dM
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Christian Kammerer proslijedio/la je Tweet
One of my favourite eurypterid fossils for
#FossilFriday 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!pic.twitter.com/2fXcMGPQm8
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Christian Kammerer proslijedio/la je Tweet
Another
#FossilFriday in Johannesburg, seeing more of the collections@ESI_FossilLab 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)pic.twitter.com/Srl5eZMoCk
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