What are the 4 reptile orders?

What are the 4 reptile orders?

Summary. Class Reptilia is made up of four orders: Squamata, Testudines, Crocodilia and Rhynchocephalia. Each order is further divided into sub-orders, families, genera and species.

What are the 3 groups of marine reptiles?

Currently, of the approximately 12,000 extant reptile species and subspecies, only about 100 are classed as marine reptiles: extant marine reptiles include marine iguanas, sea snakes, sea turtles and saltwater crocodiles.

What other marine reptiles are there?

During the Mesozoic Age, or Age of Reptiles as it is sometimes called, several other groups of reptiles became aquatic and had successful lives in the sea. Today, only a few representatives of four reptilian groups live in salt water: turtles, crocodiles, lizards, and snakes.

How many groups are there in reptiles?

Introduction. Reptiles, traditionally considered one of the major classes of the phylum Vertebrata, include three major groups: turtles (Order Testudines), crocodilians (Order Crocodylia), and snakes and lizards (Order Squamata).

How many reptile classes are there?

The Class Reptilia is composed of four orders. Species from three of these orders occur in North America: Order crocodilia (crocodilians), Order testudines (turtles), and Order squamata (lizards and snakes).

Where do the 4 marine reptiles lay their eggs?

Reptile eggs need to stay dry, and all reptiles lay eggs on land, often burying them. Except for alligators and crocodiles, nearly all reptiles abandon their eggs, and offer no care to their young.

What is the largest group of marine reptiles?

the sea snakes
The largest group of marine reptiles, the sea snakes, occur in the tropical and subtropical waters of the Indian and Pacific Oceans from the east coast of Africa to the Gulf of Panama.

What class is marine reptiles?

Reptiles are a class of vertebrates that include snakes, turtles, crocodilians, and lizards. Most reptiles have a key set of characteristics that separate them from other vertebrates.

What are the different group of reptiles?

Reptiles, traditionally considered one of the major classes of the phylum Vertebrata, include three major groups: turtles (Order Testudines), crocodilians (Order Crocodylia), and snakes and lizards (Order Squamata).

What is the largest marine reptile?

Table of heaviest living reptiles