Sauropterygia (" lizard flippers ") is an extinct taxon of diverse, aquatic diapsid reptiles that developed from terrestrial ancestors soon after the end-Permian extinction and flourished during the Triassic before all except for the Plesiosauria became extinct at the end of that period.

sauropterygian, any of the aquatic reptiles found as fossils from the Mesozoic Era (251 million to 66 million years ago). Sauropterygians include the nothosaurs, the pistosaurs, and the plesiosaurs, all of which were remarkably well adapted to life in the water.

Sauropterygia is an extinct clade of secondarily aquatic diapsid reptiles, which means that they evolved from reptilian ancestors that lived on land and not directly from fishes that spent their entire evolutionary history in aquatic environments. Examples include placodonts, nothosaurs, pachypleurosaurs, and plesiosaurs.

Sauropterygia is the most diversified and dominant clade among marine reptiles, but their early evolution is scarcely understood. Here we report the earliest known complete specimen related to sauropterygians from the Early Triassic.

The Sauropterygia was a superorder of successful aquatic reptiles that flourished during the Mesozoic era. They are united by an adaptation of their shoulder, designed to support powerful paddle strokes. Some later sauropterygians like the pliosaurs developed a …

Aug 8, 2023 · Our new phylogenetic hypothesis indicates sauropterygians originated and diversified in South China in the aftermath of the Permo-Triassic mass extinction event and suggests an important role of dermal armour in their early evolutionary history.

Jun 17, 2024 · Benjamin Kear and colleagues describe the geologically oldest sea-going reptile from the Southern Hemisphere. This fossil evidences the trans-oceanic dispersal and rapid global radiation of sauropterygians after the end-Permian mass extinction.

Jan 5, 2024 · Among these predators, sauropterygians, consisting of placodonts, pachypleurosaurs, nothosaurs and pistosaurs (including the iconic plesiosaurs), displayed the greatest diversity at both the generic and species levels, and persisted from the Early Triassic to the Late Cretaceous.

The Sauropterygia or "lizard flippers" are an important group which includes a wide range of aquatic lizard-like, crocodile-like, long-necked "Loch Ness monster"-like, and large-headed killer whale-like aquatic reptiles.

Sauropterygia ('lizard flippers') is an extinct, diverse taxon of aquatic reptiles that developed from terrestrial ancestors soon after the end-Permian extinction and flourished during the Mesozoic before they became extinct at the end of that era.

Sauropterygia (class Reptilia, subclass Euryapsida) An extinct reptilian order, that comprises the suborders Plesiosauria (plesiosaurs) and Nothosauria (nothosaurs). MICHAEL ALLABY "Sauropterygia ." https://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/sauropterygia-0.

Jul 9, 2013 · In some sauropterygians, the ribs are also projected laterally in the dorsal aspect of the trunk, and the pectoral girdle is laid in the ventral position relative to the rib cage 50,51.

Apr 26, 2022 · Sauropterygia, from turtle-like placodonts, lizard-like pachypleurosaurs, and predatory nothosaurs to long-necked pistosaurs including plesiosaurs, is one of the most predominant lineages among secondarily aquatic reptiles.

A new study has revealed that an extinct group of marine reptiles called sauropterygians evolved similar inner ear proportions to those of some modern day aquatic reptiles and mammals.

The largest and most diverse group of Triassic aquatic reptiles gave birth to live young, researchers report in this week's Nature. The finding in sauropterygians is the first evidence of viviparity in this group of animals, which lived throughout the …

Sauropterygia is an extinct group of marine reptiles that lived during the Triassic and Jurassic periods. These animals had large, flat bodies, paddle-like limbs, and long tails that allowed them to move efficiently through water.

In some sauropterygians, the ribs are also projected laterally in the dorsal aspect of the trunk, and the pectoral girdle is laid in the ventral position relative to the rib cage50,51. This unusual construction seen in their trunk skeleton is reminiscent of the rib patterning of the turtles16,49,52,53,54.

Sauropterygia ("lizard flippers"), are very successful aquatic reptiles that flourished during the Age of the Dinosaurs before they became extinct. The infraclass includes the nothosaurs, plesiosaurs, and placodonts. They are united by a radical adaptation of their shoulder, designed to support...

Apr 24, 2019 · Teeth provide an excellent model system for understanding evolutionary change and how it has led to adaptive diversity across tetrapods. Their durability over geological timescales and their ubiquity in the fossil record make teeth unique and allow direct comparison of dental structure for both extant and extinct species.

Jul 1, 2020 · However, Lübke et al. (2015) noted that the fluor content in extinct sharks, sauropterygians, mosasaurids and dinosaurs was high and similar in all extinct taxa despite their different age, environmental settings and diagenetic history, and suggested that it represents the in-vivo signature