The youngest record of fossil land mammals from Antarctica; its significances on the evolution of the terrestrial environment of the Antarctic Peninsula during the late Eocene.

VIZCAÍNO S. F.; BOND, M.; REGUERO, M.A.; PASCUAL, R.

JOURNAL OF PALEONTOLOGY

PALEONTOLOGICAL SOC INC

Lugar: Lawrence; Año: 1997 p. 348 - 350

0022-3360

THE record of fossil land mammals from Antarctica has been restricted previously to the middle levels of the Eocene-?early Oligocene La Meseta Formation in Seymour Island, Antarctic Peninsula. This mostly shallow-marine sequence was divided informally into seven subunits (Tertiary Eocene La Meseta or TELM 1 to 7). Land mammals, representing South American lineages of marsupials, eden tates, and ungulates were recovered from TELM 3, 4, and 5. The purpose of the present note is to report the discovery of a well-preserved ungulate tooth from the uppermost level of the La Meseta Formation (TELM 7) and to discuss its paleoenvironmental implications.