Zobrazeno 1 - 10
of 101
pro vyhledávání: '"Walter W. Dalquest"'
Autor:
Walter W. Dalquest, Don G. Wyckoff
Publikováno v:
Plains Anthropologist. 42:5-32
Long renowned for their clues to the presence and predatory abilities of North America's earliest humans, Southern Plains sites with bison remains have provided vertebrate paleontologists with food for thought for nearly a century. Bison skulls from
Autor:
Cary T. Madden, Walter W. Dalquest
Publikováno v:
Journal of Vertebrate Paleontology. 10:266-267
(1990). The last rhinoceros in North America. Journal of Vertebrate Paleontology: Vol. 10, 50th Anniversary - 1990, pp. 266-267.
Publikováno v:
The Southwestern Naturalist. 37:231
The newly erupted upper premolar (P4) of Dipodomys shows an arrangement of cusps that is distinctive in five species studied. The cusps swiftly wear away to leave the tooth as a column of radial enamel and dentine. The pulp cavity of P4 is elongated
Autor:
Walter W. Dalquest, Jon A. Baskin
Publikováno v:
American Midland Naturalist. 127:13
Twelve mammalian taxa are identified (four to genus only) from the 1 1,410year-old Elm Creek local fauna. The water shrew Sorex palustris probably lived along margins of cold water streams of glacial meltwater. The chipmunk, Tamias striatus, probably
Publikováno v:
The Southwestern Naturalist. 35:105
Some sediments exposed in cutbanks of streams in canyons in northeastern New Mexico and adjacent Oklahoma are considered to be filled-in beaver ponds and associated fringing meadows. Exposures rich in mollusk remains yielded small but important late
Autor:
Walter W. Dalquest
Publikováno v:
Journal of Mammalogy. 67:623-631
Agriotherium is known in North America only from middle to late Hemphillian age deposits. The permanent molars of Agriotherium were retained in the jaw until the animal reached full size, and then erupted simultaneously or in swift sequence. In Ursus
Autor:
Walter W. Dalquest
Publikováno v:
Journal of Mammalogy. 59:269-298
The Beck Ranch local fauna was recovered from 65 tons of sand and clay sediments from a quagmire in Scurry County, Texas. Of the 58 taxa identified, members of the genera Perognathus, Peromyscus, Nasua and Spilogale (?) are described as new species;
Autor:
Walter W. Dalquest
Publikováno v:
Journal of Mammalogy. 55:96-101
A new species of antilocaprid from the Cedazo local fauna, Tacu- baya Formation, late medial Pleistocene age, near the City of Aguascalientes, State of Aguascalientes, Mexico, is characterized by long posterior horn cores with straight external sulci