Current State of the Problems in the Phylogeny of Squamate . . . These groups are unevenly represented in the modern fauna: only approximately 15 archosaur (crocodile) species and somewhat over 320 anapsid (turtle) species are known The superorder Lepidosauria comprises two orders: lizard-like reptiles, Rhynchocephalia, which are represented by two extant species, and the order Squamata
Animal Encyclopedia With Facts, Pictures, Definitions, and More! Reptiles Lizards, dinosaurs, crocodiles, turtles, and snakes – all belong to that ancient and stout class of animals known as the reptiles This is a diverse group with more than 10,000 different species and a huge representation in the fossil record
Reptiles, Amphibians and Insects - Monterey Zoo Lizards are reptiles, and there are a lot of them – by some estimates almost 6,000 species Lizards generally have small heads, long bodies and long tails, but with so many different types, size varies greatly Lizards are found all over the world in almost every type of terrain Turtles
Reptiles – Types and Characteristics - Exploration Junkie This creates impermeable skin that makes it impossible to be used to breathe in water: it is an adaptation for reptiles to leave the water and become terrestrial over the course of evolution Lungs for respiration: Reptiles breathe with lungs (they all have at least one), unlike amphibians who are also able to breathe through their skin
Amphibians and Reptiles - GovInfo Approximately 460 species of amphibians and reptiles are known to occur in the continental United States Amphibians and reptiles are vertebrates, along with fish, birds, and mammals Worldwide, there are ap-proximately 4,600 known amphibian species (fig 1) similar to the number of known mammal species (ap-proximately 4,000)
Reptiles Portal | Britannica Turtles, tuatara, lizards and snakes, and crocodiles make up the major groups of living reptiles today, and they collectively account for over 8,700 species Plesiosaurs, pliosaurs, ichthyosaurs, and dinosaurs are part of the diverse group of now-extinct reptiles that were once found on Earth but that we are now unlikely to encounter