Encyclopedia of Earth
Encyclopedia of Earth: Vertebrate
Explains the features of animals defined as vertebrates, how they evolved, and their taxonomy. (Published: April 29, 2010)
Biology 4 kids
Biology4 Kids: Quiz: Vertebrates
Take this ten-question review quiz over the Phylum Chordata. Read more about each question after an incorrect answer is given.
E-learning for Kids
E Learning for Kids: Science: Caribbean Sea: How Can We Classify Animals?
Welcome to Hideaway Island where five pirates need to find crews for their ships. Join in and learn about animals with backbones.
Sam Houston State University
Sam Houston State University: Chordate Characteristics
This site describes the characteristics of Chordates. There are also examples of two groups that show an affinity toward the phylum Chordata but do not actually exhibit the characteristics. This site also describes the history of the...
University of California
Ucmp: Introduction to Chordata
This site from UC Berkeley is an excellent site about the animal phylum chordata. Click on various sections to learn more, covering topics such as the fossil record, life history & ecology, systematics, and morphology. This site is a...
University of California
Ucmp: Introduction to the Cephalochordates & Lancelets
This site describes the lancelets and the characteristics of chordates they express.
University of California
Ucmp: Introduction to Urochordata
This site introduces Urochordates and mentions the characteristics of Chordates that Tunicates exhibit. There are links to additional information about Chordate Characteristics
University of California
Ucmp: Myxini Hagfishes
This site contains quite a bit of information about hagfishes. There are pictures as well.
Other
Jeff's Coral Reef Gallery: Tunicates
This excellent underwater photo of a tunicate includes a short but informative description of tunicates in general (also known as "sea squirts").
Tree of Life Project
Reptiles: Synapsida
This site contains general information about the extinct link between reptiles and mammals. The Synapsida organisms are the link.
PBS
Pbs the Shape of Life: Phylum Chordata
From a PBS television series, this site offers a summary of the features which characterize the phylum chordata and includes multiple color photos.
Regents of the University of Michigan
Animal Diversity Web: Phylum Chordata (Chordates)
This site contains a listing of additional characteristics that many Chordates have in common beyond the typical four: notochord, dorsal nerve cord, pharyngeal slits, and a post-anal tail.
University of California
Ucmp: Lampreys
This site from the University of California contains detailed information about lampreys. There are several pictures, including special links.
University of California
Ucmp: Birds Decendents of Dinosaurs
This site from the University of California, Berkeley contains general information and links to information about the fossil record of birds, the life history of birds, the systematics of birds, and the morphology of birds.
Sophia Learning
Sophia: Animals: Vertebrates: Lesson 3
This lesson will explain the characteristics of animals that are classified as vertebrates. It is 3 of 4 in the series titled "Animals: Vertebrates."
Sophia Learning
Sophia: Animals: Vertebrates: Lesson 2
This lesson will explain the characteristics of animals that are classified as vertebrates. It is 2 of 4 in the series titled "Animals: Vertebrates."
Sophia Learning
Sophia: Animals: Vertebrates: Lesson 4
This lesson will explain the characteristics of animals that are classified as vertebrates. It is 4 of 4 in the series titled "Animals: Vertebrates."