Probable cervical vertebra of an extinct Ice Age elkmoose dredged from the inner continental shelf of central New Jersey, USA Martin A. Becker1, John A. Chamberlain Jr.2*, and Rebecca B. Chamberlain3 1. Department of Environmental Science, William Paterson University, Wayne, New Jersey 07470, USA 2. Department of Geology, Brooklyn College, Brooklyn, New York 11210, USA, and Doctoral Program in Earth and Environmental Sciences, CUNY Graduate Center, New York, New York 10016, USA 3. Department of Biology, College of Staten Island, Staten Island, New York 10314, USA *Corresponding author <
[email protected]> Date received 29 September 2009 ¶ Date accepted 11 January 2010 ABSTRACT Commercial shell-fishing activities off the central New Jersey coast recovered a single cervical vertebra probably belonging to the extinct elkmoose, Alces scotti. The specimen was discovered 40 km southeast of Manasquan Inlet in 40–45 m of water at approximate latitude 39° 45' N and longitude 73° 30' W. Radiocarbon dating yielded an age of 23 530 ± 170 years BP for the vertebra. This date is consistent with the known age range of this species and predates the migration of the modern moose Alces alces into northeastern North America from western North America and Eurasia. The discovery of Pleistocene terrestrial mammal fossils, such as this bone, on the submerged northeastern continental shelf reflects periglacial habitat shifts. These habitat shifts are the product of glacioeustatically controlled shoreline migration associated with the Wisconsinan glacial maximum. We interpret this vertebra as probably deriv- ing from an animal living in a tundra or taiga setting at a distance of 100 to 200 km from the southern edge of the Laurentide ice sheet.