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Thalattosaurus (pronounced: / θ ə ˌ l æ t ə ˈ s ɔːr ə s /, "tha-la-to-SORE-us") meaning "sea lizard," from the Attic Greek thalatta (θάλαττα), "sea," and sauros (σαῦρος), "lizard," is an extinct genus of marine reptile in the family Thalattosauroidea. They were aquatic diapsids that are known exclusively from the Triassic ...
Basilosaurus (meaning "king lizard") is a genus of large, predatory, prehistoric archaeocete whale from the late Eocene, approximately 41.3 to 33.9 million years ago (mya). ). First described in 1834, it was the first archaeocete and prehistoric whale known to scienc
Hylonomus (/ h aɪ ˈ l ɒ n əm ə s /; hylo-"forest" + nomos "dweller") [2] is an extinct genus of reptile that lived during the Bashkirian stage of the Late Carboniferous.It is the earliest known crown group amniote and the oldest known unquestionable reptile, with the only known species being Hylonomus lyelli.
They are found in some lizards, where they are mostly made of cartilage, as well as crocodiles and the tuatara, and are not attached to the spine or thoracic ribs. The true ribs are small projections, with small, hooked bones, called uncinate processes, found on the rear of each rib. [ 54 ]
The U.S. National Oceanic and Atmospheric Administration announced the discovery of a sea sponge which may be one of the world’s oldest living animals.
• Sea snake (bottom right) Marine reptiles are reptiles which have become secondarily adapted for an aquatic or semiaquatic life in a marine environment. Only about 100 of the 12,000 extant reptile species and subspecies are classed as marine reptiles, including marine iguanas, sea snakes, sea turtles and saltwater crocodiles. [1]
The Lapitiguana is the largest iguana fossils. The extant members of genus Brachylophus are iguanas small and medium-sized, growing a length of 60–75 cm (24–30 in). ). Although, in the past there was a much larger member of this family – Brachylophus gibbonsi, reached in length of 1.2 m (3.9 ft), [citation needed] and thus, was 1.8 times longer than its modern re
The Lepidosauria (/ ˌ l ɛ p ɪ d oʊ ˈ s ɔː r i ə /, from Ancient Greek meaning scaled lizards) is a subclass or superorder of reptiles, containing the orders Squamata and Rhynchocephalia. Squamata also includes lizards and snakes. [2]