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This lesson will focus on the taxon- omy of animals, specifically the group of animals known as arthropods. Of the 1.25 million animals that have been iden- tified on Earth, more than a million of them are arthropods.
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.
Phylogenetic analysis of arthropods using two nuclear protein-encoding genes supports a crustacean + hexapod clade JeĦrey W. Shultz1* and Jerome C. Regier2 1Department of Entomology, University of Maryland, College Park, MD 20742, USA ( js314@umail.umd.
Stunning insect macrophotography combined with informative descriptions. Browse through the database and develop a respect and appreciation for these extraordinary animals.
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.
The science of entomology is the study of insects and allied organisms. These animals belong to the Phyla Arthropoda. Within the Phyla, there are two classes, 1. the Arachnida, and 2. the Insecta.