Zoology: arthropods like millipedes, centipedes; 13000 species; terrestriall; 10 to 750 legs; fossil records into the late Silurian; molecular evidence suggests a diversification in the Cambrian Period.
MyriapodaClasses:
Chilopoda -
Diplopoda -
Pauropoda -
SymphylaDiplopodaSubclasses: Chilognatha, Penicillata.