Asymmetron Directory References Discover Ten Days That Vanished: The Switch to the Gregorian Calendar 9 of the World’s Deadliest Snakes Who Invented the Internet? 6 Animals We Ate Into Extinction Acts of Union: Uniting the United Kingdom Timeline of the 1980s 6 Animals That Eat Their Mates Contents Asymmetron invertebrate genus Ask the Chatbot a Question Ask the Chatbot a Question Also known as: Epigonichthyes Learn about this topic in these articles:classification In amphioxus…Amphioxus) and Epigonichthyes (also called Asymmetron)—with about two dozen species. The chordate features—the notochord (or stiffening rod), gill slits, and dorsal nerve cord—appear in the larvae and persist into adulthood.Read More
