Gill, Theodore Nicholas

5 publications

Gill, Theodore Nicholas (detail)
1872aArrangement of the families of mammals [pp. 1-42]. [Followed by] Synoptical tables of characters of the sub-divisions of mammals, with a catalogue of the genera [pp. 43-98].
Smithson. Misc. Coll. 11(1)(230): vi + 98. Nov. 1872.
—Introduces the following new superfamily and family names in his classification: Halicoroidea (13), Manatoidea (14), Trichechoidea (91), and Trichechidae (14). Summarizes sir. characters (48-49) and provides a key to the families (91) and a list of the genera (91-92). The Halicoroidea include the Halitheriidae, Halicoridae, and Rhytinidae; the Manatoidea or Trichechoidea (Gill uses these terms inconsistently and interchangeably) include only the Trichechidae.
Gill, Theodore Nicholas (detail)
1872bOn the characteristics of the primary groups of the class of mammals.
Proc. Amer. Assoc. Adv. Sci. 20: 284-306.
—Extract: Amer. Naturalist 5: 526-533, 1871? Gives a brief diagnosis of the Order Sirenia (300-301).
Gill, Theodore Nicholas (detail)
1873On the affinities of the sirenians.
Proc. Acad. Nat. Sci. Philadelphia 25(2): 262-273.
—Concludes that the Cetacea and Sirenia are closer to each other than either is to any other order, and that they share a common aquatic ancestor. Also provides a genealogical tree of the sir. families.
Gill, Theodore Nicholas (detail)
1882Scientific and popular views of nature contrasted. A lecture delivered in the National Museum, March 11th, 1882.
U.S. Natl. Mus. Saturday Lectures No. 1: 1-24.
—?Sir. tail flukes, 10-11.
Gill, Theodore Nicholas (detail)
1907Systematic zoology: its progress and purpose.
Science (n.s.) 26: 489-505.
—Sirs., 494.