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The smallest-known mosasaur was Dallasaurus turneri, which was less than 1 m (3.3 ft) long. Larger mosasaurs were more typical, with many species growing longer than 4 m (13 ft). Mosasaurus hoffmannii, the largest known species reached up to 17 m (56 ft), [3] but it has been considered to be probably overestimated by Cleary et al. (2018). [4]
Clidastes was the one of the smallest of the mosasaurs (the smallest known being Dallasaurus), averaging 2–4 meters (6.6–13.1 ft) in length, with the largest specimens reaching 6.2 meters (20 feet) long. [4]
The parietal foramen in Mosasaurus, which is associated with the parietal eye, is the smallest among mosasaurids. [25] The quadrate bone, which connected the lower jaw to the rest of the skull and formed the jaw joint, is tall and somewhat rectangular in shape, differing from the rounder quadrates found in typical mosasaurs. [ 5 ]
They ranged in size from some of the smallest known mosasaurs (Carinodens, 3–3.5 meters), to medium-sized taxa (Clidastes, 6+ meters), to the largest of the mosasaurs (Mosasaurus hoffmannii) potentially reaching about 13 m in length.
A tylosaurine mosasaur that had more vertebrae in the neck and tail than its Tylosaurus cousin. It is one of the largest mosasaurs, though its size has been revised more than once. †Halisaurus †Halisaurus platyspondylus; USA With a length of 3–4 m (9.8–13.1 ft), this species of halisaurine mosasaur is small compared to most other mosasaurs.
Yaguarasaurines were primitive and comparatively small to medium-sized mosasaurs that lived during the earlier stages of mosasaur evolutionary history. Yaguarasaurus columbianus itself is the largest species of the subfamily, with the largest known skeleton at a length of 5 metres and a massive isolated skull indicating larger sizes. This ...
Mosasaurs are the largest-known squamates. The largest-known mosasaur is likely Mosasaurus hoffmanni, estimated at more than 17 m (56 ft) in length, [257] [258] however these estimations are based on heads and total body length ratio 1:10, which is unlikely for Mosasaurus, and probably that ratio is about 1:7. [259]
The largest of the monitor lizards (and the largest extant lizard in genera) is the Komodo dragon (Varanus komodoensis), endemic to the island of its name, at a maximum size of 3.13 m (10.3 ft) long and 166 kg (366 lb), although this is currently the only record that places the mass above 100 kg (220 lb). [1]