Results 1-3 of 13
All of the upper categories of taxonomy have been artificiality constructed in an
attempt to show evolutionary relation- of higher ships between species, between
genera, between families, taxa and so forth. All of these more inclusive levels of ...
Whether such evolution was really rapid or only seems so because of (1) missing
parts of paleontologic history, (2) unusually detailed study of some groups that
resulted in recognition of many more species and genera in certain groups than ...
Family Strigidae (typical owls). Upper Eocene to Recent. Clavicles fused to
sternum, which has 2 pairs of notches. Facial disk consists of a semicircle on
each side. Middle claw without comb. About 22 Recent genera, 125 species.
What people are saying - Write a review
LibraryThing ReviewUser Review - keylawk - www.librarything.com
This is the 198215th Edition, in two halves, with the Macropaedia and the Micropaedia. First published in 1768, the publisher is the oldest English-language encyclopedia still in print. Two Scottish ... Read full review