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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.
Fossils of Ankylosaurus teeth exhibit wear on the face of the crown rather than on the tip of the crown, as in nodosaurid ankylosaurs. [10] In 1982 Carpenter ascribed to baby Ankylosaurus two very small teeth that originate from the Lance and Hell Creek Formations and measure 3.2 to 3.3 mm ( 1 ⁄ 8 to 17 ⁄ 128 in) in length, respectively.
Artistic skeletal reconstruction of Ankylosaurus (AMNH 5895) by Barnum Brown, 1908, before the tail club was known Artistic restoration of Ankylosaurus magniventris. 1901. F. A. Lucas described the new species Stegosaurus marshi, and later reclassified it as Polacanthus marshi. [12] 1902
Ankylosauria is a group of herbivorous dinosaurs of the clade Ornithischia.It includes the great majority of dinosaurs with armor in the form of bony osteoderms, similar to turtles.
Mymoorapelta (Meaning "Shield from the Mygatt-Moore Quarry" after a combination of the names of the discoverers of the Mygatt-Moore Quarry that fossils were originally collected from, and the Greek word πέλτα, meaning "shield") is a nodosaurid ankylosaur from the Late Jurassic (Kimmeridgian-Tithonian, around 155 to 150 million years ago) Morrison Formation (Brushy Basin Member) of western ...
Zuul is a genus of herbivorous ankylosaurine dinosaur from the Campanian Judith River Formation of Montana.The type species is Zuul crurivastator.It is known from a complete skull and tail, which represents the first ankylosaurin known from a complete skull and tail club, as well as the most complete ankylosaurid specimen thus far recovered from North America.
Tarchia was a medium-sized ankylosaur, measuring around 5.5–6 metres (18–20 ft) long and weighing up to 2.5–3 metric tons (2.8–3.3 short tons). [9] [10] If ZPAL MgD I/113 indeed belongs to the genus, it would have belonged to an individual measuring 5.8–6.7 metres (19–22 ft) long.
The fossils were later described in 2006 by paleontologists Leonardo Salgado and Zulma Gasparini, who named the type species A. oliveroi after Olivero. It was a medium-sized ankylosaur, reaching 4 meters (13 feet) in length or more, and showed characteristics of two different families, making more precise classification difficult for many years.