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 Europe and in the …

While dinosaurs roamed the Earth, marine reptiles in the order Plesiosauria swam in our planet's prehistoric oceans. Find out which creatures belonged in this group, how they grew to incredible …

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 periods. They were the …

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 plesios, …

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 …

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 unique body …

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, along with …

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 their …