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A Chinese pain scale diagram, rating pain on a scale of 1 to 10. A pain scale measures a patient's pain intensity or other features. Pain scales are a common communication tool in medical contexts, and are used in a variety of medical settings. Pain scales are a necessity to assist with better assessment of pain and patient screening.
Triceratops (/ t r aɪ ˈ s ɛr ə t ɒ p s / try-SERR-ə-tops; [1] lit. ' three-horned face ') is a genus of chasmosaurine ceratopsian dinosaur that lived during the late Maastrichtian age of the Late Cretaceous period, about 68 to 66 million years ago in what is now western North America.
The clade Ceratopsidae was in 1998 defined by Paul Sereno as the group including the last common ancestor of Pachyrhinosaurus and Triceratops; and all its descendants. [17] In 2004, it was by Peter Dodson defined to include Triceratops, Centrosaurus, and all descendants of their most recent common ancestor. [18]
Skulls of the three species compared: P. perotorum (with inaccurate epiparietal placement), P. canadensis, and P. lakustai Pachyrhinosaurus canadensis, was described in 1950 by Charles Mortram Sternberg based on the holotype incomplete skull NMC 8867, and the paratype incomplete skull NMC 8866, which included the anterior part of the skull but was lacking the right lower mandible, and the "beak".
One exceptionally large specimen later became its own genus, Titanoceratops, due to its more derived morphology, similarities to Triceratops, and lack of unique characteristics shared with Pentaceratops. [2] [3] Pentaceratops was about 5.5–6 meters (18–20 ft) long, and has been estimated to have weighed around 2.5 metric tons (2.8 short tons).
A chasmosaurine ceratopsid that may be a specimen of Triceratops. †Ojoceratops †Ojoceratops fowleri; 68 Ma Ojo Alamo Formation, New Mexico, USA A chasmosaurine ceratopsid, possibly synonymous with Triceratops or Eotriceratops. †Pachyrhinosaurus †Pachyrhinosaurus canadensis †Pachyrhinosaurus lakustai †Pachyrhinosaurus perotorum
With a length of 4.3–4.8 metres (14.1–15.7 ft) and a weight of 1.5–2 tonnes (1.7–2.2 short tons)—or anywhere from 2,200 to nearly 5,000 lbs., give or take—Chasmosaurus was of a slightly smaller to ‘average’ size, especially when compared to larger ceratopsians (such as Triceratops, which were about the size of an African bush ...
Flex limbs of Pachyrhinosaurus, Eotriceratops, and Triceratops, scale Triceratops to size of "T. maximus", change horn sheath shape of Triceratops to match Witton's (2018) proposal, move Chasmosaurinae key over: 22:15, 27 March 2019: 8,073 × 1,872 (286 KB) Slate Weasel