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Borealopelta (meaning "Northern shield") is a genus of nodosaurid ankylosaur from the Lower Cretaceous of what is today Alberta, Canada.It contains a single species, B. markmitchelli, named in 2017 by Caleb Brown and colleagues from a well-preserved specimen known as the Suncor nodosaur.
One particularly well-preserved nodosaurid "mummy", the holotype of Borealopelta markmitchelli, preserves a nearly complete set of armor in life position, as well as the keratin covering and mineralized remains of the underlying skin, which indicate reddish pigments in a countershading pattern.
[5] [1] Occasionally, the name "mummy" has also been used for other exceptionally preserved dinosaur fossils such as the type specimen of Borealopelta [2] and the Fighting Dinosaurs specimen. [6] Osborn noted that the skin of the first Edmontosaurus mummy was tightly wrapped around the specimen and partially drawn into the body interior. [7]
Nodosaur that was unearthed in Texas. Priconodon: Lower Cretaceous: herbivore: Nodosaur from Maryland found only from fossilized teeth. Protohadros: Lower Cretaceous: herbivore: Hadrosaur from eastern Texas, which was a part of Appalachia during the formation of the Western Interior Seaway. Propanoplosaurus: Lower Cretaceous: herbivore
The mummy in bottom view, with outline drawing. AMNH 5060 is considered one of the best preserved dinosaur fossils ever discovered. [11] The scientific value of the mummy lies in its exceptionally high degree of preservation, the articulation of the bones in their original anatomical position, and the extensive skin impressions enveloping the specimen.
Size comparison with life restoration. Animantarx is universally thought of as a nodosaurid ankylosaur, although its precise relationships within that family are uncertain. . The most recent cladistic analysis of ankylosaur phylogeny does not include Animantarx, although the authors recognize the genus as Nodosauridae incertae sedis because of its rounded supraorbital protrusions and a ...
Pelvis of the holotype specimen Scutes of the holotype specimen. Nodosaurus grew up to roughly 4 to 6 metres (13 to 20 ft) long and it was an ornithischian dinosaur with bony dermal plates covering the top of its body, and it may have had spikes along its side as well.
A 2008 study conducted on the famous dinosaur mummy Leonardo found that Brachylophosaurus had a diet that consisted of leaves, conifers, ferns, and flowering plants like magnolias. The study also found that Brachylophosaurus was a generalist herbivore; being both a browser and a grazer , but it did more of the former rather than the latter due ...