Miocene Arthropods from the Mojave Desert California

_______________________________________ 237 Introduction _______________________________________ 237 Methods and procedures-------.------.---------238 Acknowledgements. __--___-_-___-_____--________ 239 Geology-__________________________________ 239 Characteristics of the nodules_______________________ 240 Preservation of the fossils-_-__-_-____________________ 241 Age of the fauna_--__-__-__--____-_______-________ 242 Composition and ecology of the fauna _________________ 2 42 Zoogeographic relations_________________-___-________ 243 Observations of evolutionary significance.____________ 244 Systematic paleontology__-___-_--_________--___----_ 245 Class Crustacea.-_____________________________ 245 Order Anostraca.___________________________ 245 Class Arachnida________-_______________________ 246 Order Aranei, by Alexander Petrunkevitch_____ 246 Order Acarina, by D. R. Cook______________ 248 Systematic paleontology — Continued Class Insecta__ _ ________________________________ Order Odonata. _______ ____ _________ _ __ Order Thysanoptera, by Kellie O'Neill___ _ ___ Order Hemiptera _ _________________________ Heteroptera, by R. I. Sailer and J. C. M. Carvalho _ _ _________________________ Homoptera__ _ ________________________ Order Coleoptera___-______--_-_----___--__Order Diptera_-__ _ _____________ _ _______ Collecting localities _ _______________________________ Literature cited-__--__---_-------__-------___------Page