High-precision 40Ar/39Ar geochronology and the advent of North America’s Late Cretaceous terrestrial fauna

A densely sampled, diverse new fauna from the uppermost Cedar Mountain Formation, Utah, indicates that the basic pattern of faunal composition for the Late Cretaceous of North America was already established by the Albian-Cenomanian boundary. Multiple, concordant 40Ar/39Ar determinations from a volcanic ash associated with the fauna have an average age of 98.39 ± 0.07 million years. The fauna of the Cedar Mountain Formation records the first global appearance of hadrosaurid dinosaurs, advanced lizard (e.g., Helodermatidae), and mammal (e.g., Marsupialia) groups, and the first North American appearance of other taxa such as tyrannosaurids, pachycephalosaurs, and snakes. Although the origin of many groups is unclear, combined biostratigraphic and phylogenetic evidence suggests an Old World, specifically Asian, origin for some of the taxa, an hypothesis that is consistent with existing evidence from tectonics and marine invertebrates. Large-bodied herbivores are mainly represented by low-level browsers, ornithopod dinosaurs, whose radiations have been hypothesized to be related to the initial diversification of angiosperm plants. Diversity at the largest body sizes (>106 g) is low, in contrast to both preceding and succeeding faunas; sauropods, which underwent demise in the Northern hemisphere coincident with the radiation of angiosperms, apparently went temporarily unreplaced by other megaherbivores. Morphologic and taxonomic diversity among small, omnivorous mammals, multituberculates, is also low. A later apparent increase in diversity occurred during the Campanian, coincident with the appearance of major fruit types among angiosperms, suggesting the possibility of adaptive response to new resources.

Mesquakie (Fox) material culture : the William Jones and Frederick Starr collections / James W. VanStone.

n.s. no.30(1998)

Material culture of the Chilcotin Athapaskans of west central British Columbia : collections in the Field Museum of Natural History / James W. VanStone.

n.s. no.20(1993)

Ethnographic collections from the Assiniboine and Yanktonai Sioux in the Field Museum of Natural History / James W. VanStone.

n.s. no.26(1996)

The Isaac Cowie collection of Plains Cree material culture from Central Alberta / James W. VanStone.

n.s. no.17(1991)

The Cherry collection of Deg Hit'an (Ingalik) material culture / James W. VanStone.

n.s. no.27(1996)

Traditions of the Arapaho, collected under the auspices of the Field Columbian museum and of the American museum of natural history, by George A. Dorsey -- and Alfred L. Kroeber --

v.5(1903)

"And he was beautiful" : contemporary Athapaskan material culture in the collections of Field Museum of Natural History / William E. Simeone, James W. VanStone.

n.s. no.10(1986)

Indian trade ornaments in the collections of Field Museum of Natural History / James W. VanStone.

n.s. no.13(1989)

The Simms collection of Southwestern Chippewa material culture / James W. VanStone.

n.s. no.11(1988)

Nantucket, Massachusetts, 1869 (Raster Image)

This layer is a georeferenced raster image of the historic paper map entitled: Historical map of Nantucket, surveyed and drawn by the Rev. F.C. Ever, D.D. It was published by The Major & Knapp Eng. Mfg. & Lith. Co. in 1869. Scale [1:26,720]. The image inside the map neatline is georeferenced to the surface of the earth and fit to the Massachusetts State Plane Coordinate System, Mainland Zone (in Feet) (Fipszone 2001). All map collar and inset information is also available as part of the raster image, including any inset maps, profiles, statistical tables, directories, text, illustrations, or other information associated with the principal map. This map shows features such as roads, drainage, Native American village and burial ground sites, historic sites, and more. It indicates boundaries of surveyed sections and of the Ancient Sachem Rights. Relief is shown by hachures. Includes historical notes and lists of historical dates and events for the seventeenth, eighteenth, and nineteenth centuries; latest date, 1865. This layer is part of a selection of digitally scanned and georeferenced historic maps of Massachusetts from the Harvard Map Collection. These maps typically portray both natural and manmade features. The selection represents a range of regions, originators, ground condition dates (1755-1922), scales, and purposes. The digitized selection includes maps of: the state, Massachusetts counties, town surveys, coastal features, real property, parks, cemeteries, railroads, roads, public works projects, etc.

Community health representative; a changing philosophy of Indian involvment.

Mode of access: Internet.

Status of mineral resource information for assorted Indian lands in Nevada /

Bibliography: p. 123-135.

Review of certain aspects of the program for the termination of Federal supervision over Indian affairs.

Mode of access: Internet.