Skip to Main Content
GEOREF RECORD

REE signatures in vertebrate fossils from Sewell, NJ; implications for location of the K-T boundary

Richard M. Staron, Barbara S. Grandstaff, William B. Gallagher and David E. Grandstaff
REE signatures in vertebrate fossils from Sewell, NJ; implications for location of the K-T boundary
Palaios (June 2001) 16 (3): 255-265

Abstract

Rare Earth Element (REE) signatures have been used to test whether mosasaur bones in a basal Hornerstown Formation bonebed (the Main Fossiliferous Layer, or MFL) in New Jersey were reworked from the underlying Maastrichtian beds or deposited synchronously with the bones of other taxa in the Hornerstown Formation. The interpreted age of the bonebed (Maastrichtian vs. Danian) and the position of the K-T boundary in New Jersey are affected by the possible reworking. Statistical techniques, such as ANOVA and Discriminant Analysis, show that signatures of REE in MFL bones are different from those of bones in either the underlying Navesink Formation or the upper part of the Hornerstown Formation, suggesting a unique depositional setting for this bonebed. REE signatures of the MFL mosasaur bones conform with signatures in bones from other taxa within the MFL, suggesting that their deposition was contemporaneous with that of the other taxa. Thus, the MFL bonebed appears to be Cretaceous in age and the K-T boundary must be in or above the MFL, within the Hornerstown Formation.


ISSN: 0883-1351
Serial Title: Palaios
Serial Volume: 16
Serial Issue: 3
Title: REE signatures in vertebrate fossils from Sewell, NJ; implications for location of the K-T boundary
Affiliation: Temple University, Department of Geology, Philadelphia, PA, United States
Pages: 255-265
Published: 200106
Text Language: English
Publisher: Society of Economic Paleontologists and Mineralogists, Tulsa, OK, United States
References: 65
Accession Number: 2002-017156
Categories: StratigraphyGeochemistry of rocks, soils, and sediments
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. 3 tables, sketch map
N39°31'60" - N39°52'60", W75°27'00" - W74°52'60"
Secondary Affiliation: University of Pennsylvania, USA, United StatesNew Jersy State Museum, USA, United States
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2018, American Geosciences Institute.
Update Code: 200207
Close Modal

or Create an Account

Close Modal
Close Modal