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A close rival in size to those snakes is palaeophiid marine snake Palaeophis colossaeus, which may have been around 9 m (30 ft) in length [262] [264] [265] or even up to 12.3 m (40 ft). [266] Another known very large fossil snake is Gigantophis garstini , estimated at 9.3–10.7 m (31–35 ft) in length, [ 267 ] [ 268 ] although later study ...
Currently, the largest marine reptile identified to date is the Late Triassic ichthyosaur Ichthyotitan, which is thought to have reached around 25 meters (82 ft) in length. [69] The Harvard skeleton restoration being erroneous, McHenry gives a smaller size of this specimen between 9 and 10.5 meters (30 and 34 ft) long [ 21 ] for a weight of 11 ...
See text. Ichthyosauria[ a ] is an order of large extinct marine reptiles sometimes referred to as "ichthyosaurs", although the term is also used for wider clades in which the order resides. Ichthyosaurians thrived during much of the Mesozoic era; based on fossil evidence, they first appeared around 250 million years ago (Ma) and at least one ...
A massive jawbone found by a father-daughter fossil-collecting duo on a beach in Somerset along the English coast belonged to a newfound species that’s likely the largest known marine reptile to ...
Clidastes conodonCope, 1881. Mosasaurus (/ ˌmoʊzəˈsɔːrəs /; "lizard of the Meuse River ") is the type genus (defining example) of the mosasaurs, an extinct group of aquatic squamate reptiles. It lived from about 82 to 66 million years ago during the Campanian and Maastrichtian ages. The genus was one of the first Mesozoic marine reptiles ...
The Plesiosauria[ a ][ 4 ] or plesiosaurs are an order or clade of extinct Mesozoic marine reptiles, belonging to the Sauropterygia. Plesiosaurs first appeared in the latest Triassic Period, possibly in the Rhaetian stage, about 203 million years ago. [ 5 ] They became especially common during the Jurassic Period, thriving until their ...
Shonisauruslived during the late Carnianto Norianstages of the Late Triassic. With a large skull about 2.75 m (9.0 ft) long, S. popularisand measured around 13.5–15 metres (44–49 ft) in length and 21.6–29.7 metric tons (23.8–32.7 short tons) in body mass. [5][6]S. sikanniensiswas one of the largest marine reptiles of all time, measuring ...
Mosasaur. Mosasaurs (from Latin Mosa meaning the ' Meuse ', and Greek σαύρος sauros meaning 'lizard') are an extinct group of large aquatic reptiles within the family Mosasauridae that lived during the Late Cretaceous. Their first fossil remains were discovered in a limestone quarry at Maastricht on the Meuse in 1764.