In the beginning of the nineteenth century, scientists realised how distinctive their build was and they were named as a separate order in 1835. The first plesiosaurian genus, the eponymous …

Plesiosaur, any of a group of long-necked marine reptiles found as fossils from the late Triassic Period into the late Cretaceous Period. They inhabited marine areas in the Atlantic near …

Oct 19, 2023 · Find out which creatures belonged in this group, how they grew to incredible sizes, and how they've captivated both scientists and storytellers alike.

Plesiosaurs (Greek: plesios meaning "near" or "close to" and sauros meaning "lizard") were carnivorous, aquatic (mostly marine) reptiles that lived from the Triassic to the Cretaceous …

Nov 30, 2025 · Plesiosaurs represent an ancient group of extinct marine reptiles that dominated the world’s oceans throughout the Mesozoic Era. These air-breathing predators evolved a …

May 27, 2024 · Plesiosaurs were the largest aquatic animals to swim in the ancient seas of their time and were prolific predators as well. The name plesiosaur is derived from the Greek words …

May 5, 2025 · As you may already have surmised from its name, Plesiosaurus is the eponymous member of the family of marine reptiles known as plesiosaurs, which were characterized by …

These creatures evolved into two main groups: long-necked plesiosauromorphs and large-headed pliosauromorphs, adapting to diverse marine environments worldwide. They fed on fish and …

Plesiosaurs, despite their reptilian appearance, gave birth to live young instead of laying eggs, an adaptation for their fully marine lifestyle. Diet: Fish, squid, and other marine invertebrates. The …

The Plesiosaur Directory is for anyone interested in any aspect of plesiosaurs and their kin. You will find information about their anatomy, classification, evolution, and stratigraphic distribution, …