How Tyrannosaurus Lost a Finger | Smithsonian
WEBMay 3, 2011 · Learn how paleontologists discovered that Tyrannosaurus rex had only two fingers, not three, based on the fossil evidence of its relatives. Find out why this anatomy was a mystery for...
How T. rex “Lost” Its Third Claw - American Museum of Natural History
WEBApr 4, 2019 · Learn how paleontologists discovered that T. rex only had two claws on each hand, based on fossil evidence and comparisons with other dinosaurs. See the original three-fingered models from the Museum's first T. rex specimen.
Paleontologist’s New Theory for Why T. rex Had Such
WEBApr 5, 2022 · A new hypothesis suggests that the T. rex's short arms may have evolved to avoid injury during communal feeding, particularly to prevent accidental or intentional amputation caused by the creature's powerful jaws and teeth.
Tyrannosaurus - Wikipedia
WEBTyrannosaurus is a genus of large theropod dinosaur, often called T. rex or T-Rex, that lived in western North America in the late Cretaceous period. Learn about its appearance, classification, paleobiology, paleoecology, cultural significance and more.
A Tyrannosaurus with THREE fingers? - WIRED
WEBOct 11, 2007 · In northeastern Montana's Hell Creek formation, a Tyrannosaurus rex has been unearthed with three fingers on each hand. The existence of digit III had previously surmised because of a joint...
A Tyrannosaurus with THREE fingers? - National Geographic
WEBOct 11, 2007 · In northeastern Montana’s Hell Creek formation, a Tyrannosaurus rex has been unearthed with three fingers on each hand. The existence of digit III had previously surmised because of a joint...
Specimens of Tyrannosaurus - Wikipedia
WEBA list of known specimens of Tyrannosaurus, the most iconic dinosaur, with data on completeness, discovery, museum, and formation. See photos and notes of some of the most noteworthy specimens, such as Sue, Stan, and B-rex.
Did tyrannosaurus rex have 3 fingers? : r/Dinosaurs - Reddit
WEBDec 1, 2019 · Tyrannosaurs have only two fingers. However, they do have a vestigial third metacarpal bone, which is the bone in the palm of the hand that the third finger would attach to. The “third finger” you saw was probably the third metacarpal bone.
ELI5 the arms of a Tyrannosaurus. Why, and how, are they so
WEBSo we know T-rex used its arms for something. Leading hypotheses are they were used during the hunt to grapple with a prey; they were used by T-rex to right itself after sleeping on the ground; or they were used while mating, perhaps to hang onto the female.
Fossil Solves Mystery of Dinosaur Finger Evolution
WEBJun 17, 2009 · Here's the problem: The most primitive dinosaurs in the famous theropod group (that later included Tyrannosaurus rex) had five "fingers." Later theropods had three, just like the birds that...