Cephalochordata Chordata Animalia Flora and Fauna

Information on several species that live in sand at moderate depths off the coast of Devon, UK, and photographs of the lancelet (Branchiostoma lanceolatum) and the pea urchin (Echinocyamus pusillus).

• Branchiostoma in coarse sand - Information on several species that live in sand cephalochordata at moderate depths off the coast of Devon, cephalochordata UK, and photographs of the lancelet (Branchiostoma lanceolatum) cephalochordata and the pea urchin (Echinocyamus pusillus).
• Introduction to the Cephalochordata - Illustrated description of these primitive chordates, which are small, eel-like, animalia unprepossessing animals that spend much of their time buried in animalia sand.
• Lancelet - Photograph of Branchiostoma lanceolatum and information from Wikipedia animalia on the genus, traditionally known as amphioxus, its animalia physical features and taxonomy.
• The Amphioxus Song - A song, set to the tune of “It’s animalia a long animalia way to Tipperary”, that explains in animalia verse the evolutionary development animalia of vertebrates from invertebrates.
• Invertebrate Anatomy OnLine: Branchiostoma - Detailed illustrated anatomical description of amphioxus and the animalia lancelets.
• Subphylum Cephalochordata - Information on this group and the three characteristic chordata chordate features, cephalochordata the notochord, the dorsal nerve cord chordata and the pharyngeal slits.
• Amphioxus: A Peaceful Anchovy Fillet to Illuminate Chordate Evolution - Illustrated article on amphioxus, a species which occupies a central chordata place in evolutionary thoughts when considering the origin of vertebrates.
• Amphioxus Embryonic Development - A fascinating short movie from YouTube showing the early cell animalia divisions in the egg and its subsequent development.
• Animalia: Cephalochordata - Illustration of Branchiostoma.

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