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43 (Supplement) Wytwer, J\Golovatch, SI( ED) 2000. Warsaw, 240x170, 1 col photo, b/w figs, tabs, 2 indexes, In English, partly German. Hdb, 395pp. Price EURO 53. Out of stock! Please register your order, we shall do our best to obtain a copy for you.
We performed a cladistic analysis of 25 characters to determine how the chelicerates, crustaceans, and uniramids should be classified, possibly under 1 phylum, Arthropoda, or in 2 or more phyla.
A variety of marine worms (Annelida and Protoannelida) lived in the ocean sediments during the Cambrian period. These creatures were bilaterally symmetrical, soft-bodied, and multisegmented. They had no distinct head capsule and lacked both eyes and antennae.
Educator, Lisa Schwartz, ToL Learning Materials Editor; Entomologist Carl Olson, Associate Curator for the University of Arizona Department of Entomology and Entomologist Kim Franklin, PhD student in the Interdisciplinary Program in Insect Science.
1 PHYLUM ARTHROPODA (arthos = joint; poda = foot) The arthropods consist of the insects, millipedes, centipedes, Crustacea, and arachnids. This is an extremely successful group consisting of millions of species occupying nearly every niche within the environment.