Extinction and survival of salamander and salamander-like amphibians across the Cretaceous-Paleogene boundary in northeastern Montana, USA
-
Published:January 01, 2014
-
CiteCitation
Gregory P. Wilson, David G. DeMar, Jr., Grace Carter, 2014. "Extinction and survival of salamander and salamander-like amphibians across the Cretaceous-Paleogene boundary in northeastern Montana, USA", Through the End of the Cretaceous in the Type Locality of the Hell Creek Formation in Montana and Adjacent Areas, Gregory P. Wilson, William A. Clemens, John R. Horner, Joseph H. Hartman
Download citation file:
- Share
-
Tools
Modern amphibians (lissamphibians) are highly sensitive indicators of environmental disturbance. As such, fossil lissamphibians are an excellent model for testing causal hypotheses of the Cretaceous-Paleogene mass extinction and secondary effects of Deccan volcanism and a bolide impact (e.g., acid rain). We quantitatively analyzed high-resolution temporal changes in diversity and community structure of a succession of salamander and salamander-like lissamphibian assemblages from the Hell Creek Formation and Tullock Member of the Fort Union Formation of Garfield County, northeastern Montana (ca. 67.5–65.3 Ma). Richness, evenness, and taxonomic composition remained stable through the lower Hell Creek Formation. Peak richness (11 species) occurred in...
Figures & Tables
Contents
Through the End of the Cretaceous in the Type Locality of the Hell Creek Formation in Montana and Adjacent Areas

GeoRef
- Amphibia
- biota
- Cenozoic
- Chordata
- chronostratigraphy
- communities
- Cretaceous
- extinction
- Foraminifera
- Fort Union Formation
- Garfield County Montana
- Hell Creek Formation
- Invertebrata
- K-T boundary
- Lissamphibia
- lower Paleocene
- Maestrichtian
- marine environment
- Mesozoic
- microfossils
- modern analogs
- Mollusca
- Montana
- Paleocene
- paleoecology
- Paleogene
- paleotemperature
- Protista
- species diversity
- stratigraphic boundary
- taxonomy
- terrestrial environment
- Tertiary
- Tetrapoda
- Tullock Member
- United States
- Upper Cretaceous
- Vertebrata
- volcanism
- northeastern Montana