Top Tweets for #Notoungulate
#FossilFriday 🇨🇱 Picturesque skull of the ~15 million-year-old #toxodont #notoungulate Palyeidodon obtusum from southern #Chile. It is the geologically oldest member of its family with ever-growing #molars. 🦷(No scale, but it is a cow-sized skull.) Collections of @MNHNcl
#FossilFriday 🇦🇷💀Partial skull of the tiny (~1 lb./ 500 g) #notoungulate Tremacyllus from the #Pliocene of northwest #Argentina. You would be forgiven if you thought it was from a 🐿️ or 🐇 at first glance!
#FossilFriday 🇨🇴Photogenic #skull of the ~13 million-year-old #notoungulate Huilatherium pluriplicatum from La Venta, #Colombia. It was the last surviving member of its family (Leontiniidae) and one of the few #Miocene notoungulates with low-crowned #teeth. 🦷🦷🦷@ucmpberkeley
#FossilFriday 🦷🐴Holotype upper teeth of ~25 million-year-old Argyrohippus ("silver horse") praecox from #Argentina.🇦🇷Of course, it isn't REALLY a #horse. It's a #notoungulate. Specifically, it's a notohippid. For more info, check out my notohippid blog: https://t.co/vMcR8yEy2L
#FossilFriday 🇧🇴Articulated hand (cast) of the dog-sized middle #Miocene #notoungulate Hemihegetotherium trilobus - one of many beautiful specimens from Quebrada Honda, #Bolivia. For the latest on QH geology, check out our just-published PPP article:
https://t.co/RKDMwhlr6W
#FossilFriday Holotype skull of the #Pleistocene #notoungulate Typotherium angustirostrum from @MacnVp - one of several mesothere species now grouped under Mesotherium cristatum. Check out this recent paper for historical & taxonomic details: https://t.co/dNachGH0gI
#FossilFriday 🇧🇴Beautiful upper teeth of Archaeohyrax suniensis from #Bolivia. Despite its scientific name, it is not a #hyrax (nor even similar to one); it is a 25 m.y.o. #notoungulate. You can see how its tall teeth became simpler as they wore down (from left to right).
#FossilFriday 🇦🇷A marvelous #Miocene mesothere skull: the holotype of Typotheriopsis chasicoensis, a sheep-sized #notoungulate that was very common ~ 10 million years ago in what today is Buenos Aires province, #Argentina. The missing bone shows its rodent-like upper incisors.
For more about #notoungulate endocasts (brains), check this article of ours that was just published online in the Journal of Mammalian Evolution:
https://t.co/qEqhBwvu7j
#FossilFriday "Road kill" skeleton of the 25 million-year-old, tapir-sized #notoungulate Scarrittia from southern #Argentina 🇦🇷 Too bad all fossils aren't this complete - though flattened isn't ideal.
#FossilFriday 🇦🇷 Here are some smiling #notoungulate #teeth to wish you Happy Friday! (I added eyeballs to one to help you visualize it.) This "face" pattern of fossettes is characteristic of many early notoungulates. These 🦷🦷🦷 are about 45 million years old (middle #Eocene).
#FossilFriday A nice cranium (albeit partially reconstructed) of the early #Miocene #notoungulate Proadinotherium muensteri.🇦🇷It is one of the earliest toxodontids, the last-surviving group of notoungulates (named for #Pleistocene Toxodon). From @FieldMuseum collections.
#FossilFriday 🇦🇷Happy #DarwinDay! Everyone knows Darwin's finches, but what about his South American ungulates, like #Pleistocene Toxodon (a #notoungulate)? They helped convince him that species went extinct because these mammals clearly did not belong to any living group.
#FossilFriday 🇦🇷Skull of #Pleistocene Mesotherium, the last typothere #notoungulate, from @naturales_unlp.
Its first (unofficial) name - Typotherium - was popular for many years; it gave rise to the suborder Typotheria, which is still valid even though the genus name is not!
#FossilFriday 🇦🇷Part of a small #notoungulate jaw from the middle #Miocene of #Argentina. Since part of the bone is missing, you can see how its ever-growing #teeth extend far into its jaw - a characteristic feature of many notoungulates.
#FossilFriday Three stages in the life of a 35 million-year-old #notoungulate jaw from #Chile 🇨🇱: in the rock, in the hand, and in the lab. (Despite the big canine, it was a plant-eater!)
For an update, check out our poster (Wheat et al.) at the SVP annual meeting! #SVP2020
#FossilFriday 🐴~25 million-year-old Rhynchippus equinus from @FieldMuseum collections. Its name includes both the Greek & Latin words for #horse, but it is a South American #notoungulate, very distantly related. For more info on "notohippids," check out https://t.co/vMcR8yE0dd
#FossilFriday 🇨🇱🧠25 million-year-old #notoungulate #brain (sort of) from #Chile.
The gray blob is a natural cast of the inside of the cranial cavity (an endocast), and it can still provide lots of useful information!
But the other side of the specimen is more photogenic.
Ameghiniana 57(2): Recently Published Article 🆕 - #VertebratePaleontology
A new #typothere #notoungulate (#Mammalia Interatheriidae), from the #Miocene Nazareno Formation of Southern #Bolivia, by D. Croft @dcpaleo & F. Anaya
#SouthAmerica #Cenozoic #BodySize
@Apaleontologica
#FossilFriday 🇦🇷Holotype of the ~15 million-year-old #notoungulate Eutypotherium lehmannnitschei. Mesotheres like this were medium-sized digging #mammals that may have been South America's version of #wombats. (PS: The three "n's" in its name are not a typo!) #Miocene #teeth
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