title: Palaeontology: Clearing the Heads of Cambrian Arthropods.
abstract: Understanding the identity of segments and the evolution of their appendages is a prime concern of arthropod evolution studies. This has been challenging for long extinct stem-groups. Now, Cambrian fossils offer insights that will help further evolutionary considerations.
authors.affiliation: Department of Neuroscience, 1040 E. 4th Street, PO Box 210077, and Center for Insect Science, University of Arizona, Tucson, AZ 85721, USA. Electronic address: flybrain@neurobio.arizona.edu.
authors.forename: Nicholas J
authors.initials: NJ
authors.lastname: Strausfeld
mesh_terms: D000818:Animals; D001181:Arthropods; D005075:Biological Evolution; D005580:Fossils; D006257:Head / Q000033:anatomy & histology; D010163:Paleontology; D010802:Phylogeny