fter “t merit of t it altered tone of one’s mind, and t, partially t, ion. It is a testament to trengt in tso abandon just a part of it to accommodate t tinctions, it nearlykilled t t is anoter.
Meaning out to do, and not all of it smoothly.
From tset geologists tried to categorize rocks by t ten bitter disagreements about te t became kno Devonian Controversy.
t Roderick Murcly to te raged for years and greremely ed. “De la Becy dog,” Murce to a friend in a typical outburst.
Some sense of trengter titlesof Martin J. S. Rud and somber account of t DevonianControversy. tlemanlyDebate” and “Unraveling t to “ttacked,” “Reproofs and Recriminations,” “ts ting a Provincial in t t tledin 1879 of coming up o beinserted betwo.
Because tis active in tisin ty of Devon. Cambriancomes from t els ing elseo tains on tzerland.Permian recalls tains. ForCretaceous (from tin for “ced to a Belgian geologisthe perky name of J. J. d’Omalius d’halloy.
Originally, geological ory o four spans of time: primary, secondary,tertiary, and quaternary. tem oo neat to last, and soon geologists ributing additional divisions ofuse altogeternary kept by otoday onlytertiary remains as a common designation everys athing.
Lyell, in roduced additional units knoocene (“most recent”), Pliocene(“more recent”), Miocene (“moderately recent”), and t a little recent”). Lyell originally intended to employ “-syncions as Meiosyncial man, objected on etymological grounds andsuggested instead an “-eous” pattern, producing Meioneous, Pleioneous, and so on. terminations hing of a compromise.
Noime is divided first into four greatc life”). to anyy subgroups, usually called periods timesknoems. Most of taceous, Jurassic,triassic, Silurian, and so on.
1tocene, Miocene, and so on— recent (but paleontologically busy) sixty-five million years, and finally of ter places: Illinoian, Desmoinesian, Croixian, Kimmeridgian, and so on in likevein. Altogeto Joens