A Key to the Skulls of North American Mammals (4th Edition)

Monte L. Thies, “A Key to the Skulls of North American Mammals (4th Edition)”
2016 | ISBN-10: 1465291717 | 113 pages | PDF | 34 MB

INTRODUCTION TO THE FOURTH EDITION
Since the first edition, this manual has served as both a reference and tool for working in and teaching mammalogy. However, with continuing revision of the taxonomy of North American mammals, the third edition contains out-of-date information. My intention with the development of this edition, as was the case with past editions, is to provide an up-to-date comprehensive treatment of all mammal genera, both native and introduced (at least those most likely to be found in the wild), occurring in North America north of Mexico, inclusive of marine mammals found in coastal waters.

Primary changes to the fourth edition include:
A general reorganization of orders to more accurately represent current associations among higher taxonomic groupings
Order Cingulata – updated Ordinal name from Xenarthra
Order Primates – inclusion of the Order and addition of the Families Hominidae (Homo) and Cercopithecidae (Macaca and Chlorocebus)
Order Rodentia – Family Cricetidae separated from Muridae; elevation of the subgenera of Spermophilus to separate genera of Poliocitellus,
Otospermophilus, Callospermophilus, Xerospermophilus, Urocitellus, and /ctodomys; reversion of Pappogeomys to Cratogeomys; elevating subgenus Myctomys from Synaptomys and subgenus Arborimus from Phenacomys;
renaming Cleithrionomys as Myodes and Lagurus as Lemmiscus.
Order Soricomorpha – updated from the Order Insectivora; removal of the Order Erinaceomorpha and Erinaceus
Order Chiroptera – splitting of the genus Pipistrellus into genera Parastrellus and Perimyotis
Order Carnivora – merging of the felid genus Herpailurus with Puma; including Felis (bobcat) with Lynx while retaining the domestic cat in the genus Felis; separation of Family Mephitidae from Mustellidae; separation of Neovison
from Mustela
Order Artiodactyla – separation of Bison from Bos
A debt of gratitude is owed to all of those who used the 3rd edition and provided me with comments and corrections that have been incorporated into this edition. I also owe a very special thank you to my wife Connie Thies for her encouragement and support as I’ve worked to complete this much needed revision.

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