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Global Change Master Directory (GCMD)
Late Paleozoic-Mesozoic fauna, environment, climate, Beardmore Glacier area
Entry ID: miller_0126146


Summary
Abstract: The 4 km thick sequence of sedimentary rocks in the Beardmore Glacier area records 90 million years of Permian through Jurassic history of this high-paleolatitude sector of Gondwana. It accumulated in a foreland basin with rate of subsidence approximately equal to rate of deposition. The deposits have yielded diverse vertebrate fossils, in situ fossil forests, and exceptionally well preserved plant fossils. They provide a unique glimpse of glacial, lake, and stream/river environments and ecosystems and preserve an unparalleled record of the depositional, paleoclimatic, and tectonic history of the area. Studies done to date provide a firm base of information for investigating more specific questions.

We propose a collaborative study of this stratigraphic section that will integrate sedimentologic, paleontologic, and ichnologic observations to answer focused questions, including: (1) What are the stratigraphic architecture and alluvial facies of Upper Permian to Jurassic rocks in the Beardmore area?; (2) In what tectonostratigraphic setting were these rocks deposited?; (3) Did vertebrates inhabit the cold, near-polar Permian floodplains, as indicated by vertebrate burrows, and can these burrows be used to identify, for the first time, presence of small early mammals in Mesozoic deposits?; and (4) How did bottom-dwelling animals in lakes and streams use substrate ecospace, how did ecospace use at these high paleolatitudes differ from ecospace use in equivalent environments at low paleolatitudes, and what does burrow distribution reveal about seasonality of river flow and thus about paleoclimate?

Answers to these questions will clarify the paeloclimatic, basinal, and tectonic history of this part of Gondwana, elucidate the colonization of near-polar ecosystems by vertebrates, provide new information on the environmental and paleolatitudinal distributions of early mammals, and allow semi-quantitative assessment of the activity and abundance of bottom-dwelling animals in different freshwater environments at high and low latitudes.

Related URL
Link: View Related Information
Description: The first is Chris Sidor's (senior personnel) web site. It describes his finding of an amphibian (Journal of Vertebrate Paleontology) and of a vertebrate burrow, both in the Beardmore area.

The second is a Vanderbilt Exploration Science Magazine article about Miller's work in the Beardmore area.

The third is Miller's departmental website.


Link: View Related Information
Description: The first is Chris Sidor's (senior personnel) web site. It describes his finding of an amphibian (Journal of Vertebrate Paleontology) and of a vertebrate burrow, both in the Beardmore area.

The second is a Vanderbilt Exploration Science Magazine article about Miller's work in the Beardmore area.

The third is Miller's departmental website.


Link: View Related Information
Description: The first is Chris Sidor's (senior personnel) web site. It describes his finding of an amphibian (Journal of Vertebrate Paleontology) and of a vertebrate burrow, both in the Beardmore area.

The second is a Vanderbilt Exploration Science Magazine article about Miller's work in the Beardmore area.

The third is Miller's departmental website.

Geographic Coverage
 N: -83.75 S: -83.75  E: 171.0  W: 171.0

 Min Altitude: 1600  Max Altitude: 3000

Data Set Citation
Version: Not provided


Temporal Coverage
Start Date: 2003-11-18
Stop Date: 2003-12-21


Paleo_Temporal_Coverage
Paleo Start Date: 300 Ma
Paleo Stop Date: 145 Ma
Chrono Unit:
Chrono Unit:
Chrono Unit:


Location Keywords
CONTINENT > ANTARCTICA
GEOGRAPHIC REGION > POLAR


Science Keywords
PALEOCLIMATE >LAND RECORDS >MACROFOSSILS    [Definition]
PALEOCLIMATE >LAND RECORDS >PALEOVEGETATION    [Definition]
PALEOCLIMATE >LAND RECORDS >SEDIMENTS    [Definition]
PALEOCLIMATE >OCEAN/LAKE RECORDS >MACROFOSSILS    [Definition]
PALEOCLIMATE >OCEAN/LAKE RECORDS >STRATIGRAPHIC SEQUENCE    [Definition]
PALEOCLIMATE >PALEOCLIMATE RECONSTRUCTIONS >STREAMFLOW RECONSTRUCTION    [Definition]
PALEOCLIMATE >PALEOCLIMATE RECONSTRUCTIONS >VEGETATION RECONSTRUCTION    [Definition]


Platform
FIELD SURVEYS    [Information]
FIELD INVESTIGATION    [Information]


Project
NSF/PLR >Division of Polar Programs, National Science Foundation    [Information]


Keywords
Beardmore
Permian
Gondwana
paleoclimatic
stratigraphic
sedimentologic
paleontologic
ichnologic


Data Set Progress
ACTIVE


Data Center
Department of Earth and Environmental Sciences, Vanderbilt University    [Information]
Data Center URL: http://www.vanderbilt.edu/ees/

Data Center Personnel
Name: MOLLY MILLER
Email: molly.f.miller at Vanderbilt.edu
Contact Address:
Vanderbilt University
City: Nashville
Province or State: TN
Postal Code: 37240
Country: US


Personnel
MOLLY MILLER
Role: INVESTIGATOR
Email: molly.f.miller at Vanderbilt.edu
Contact Address:
Vanderbilt University
City: Nashville
Province or State: TN
Postal Code: 37240
Country: US


Extended Metadata Properties
(Click to view more)

Creation and Review Dates
DIF Creation Date: 2007-06-20
Last DIF Revision Date: 2018-11-08



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