Award Abstract # 9218892
RUI: Pattern of Extinction and Replacement at the Lower- Middle Cambrian Boundary Event in the Great Basin, Western U.S.

NSF Org: EAR
Division Of Earth Sciences
Recipient: EASTERN WASHINGTON UNIVERSITY
Initial Amendment Date: January 22, 1993
Latest Amendment Date: January 22, 1993
Award Number: 9218892
Award Instrument: Standard Grant
Program Manager: Christopher G. Maples
EAR
 Division Of Earth Sciences
GEO
 Directorate for Geosciences
Start Date: March 1, 1993
End Date: August 31, 1995 (Estimated)
Total Intended Award Amount: $49,285.00
Total Awarded Amount to Date: $49,285.00
Funds Obligated to Date: FY 1993 = $49,285.00
History of Investigator:
  • Linda McCollum (Principal Investigator)
    LMcCollum@ewu.edu
Recipient Sponsored Research Office: Eastern Washington University
319 SHOWALTER HALL
CHENEY
WA  US  99004-2445
(509)359-6567
Sponsor Congressional District: 05
Primary Place of Performance: DATA NOT AVAILABLE
Primary Place of Performance
Congressional District:
Unique Entity Identifier (UEI): QL3XATN9H6L1
Parent UEI:
NSF Program(s): SCEC
Primary Program Source:  
Program Reference Code(s): 9178, 9229
Program Element Code(s): 157100
Award Agency Code: 4900
Fund Agency Code: 4900
Assistance Listing Number(s): 47.050

ABSTRACT

Extinction, which may be the ultimate fate of all species, has always held a special interest for geologists and biologists, and even legislators (e.g., Endangered Species Act). Extinction events, when a number of species become extinct over a geologically short period time, have always had historical significance to Earth scientists and evolutionary biologists, as they are conveniently used to divide up geologic time. In this project, PI and students will examine in detail one of the earliest extinction events, at the Lower-Middle Cambrian boundary, and help answer questions such as how sudden the event really was, what percentage of the fauna went extinct, and whether species began to decline in numbers prior to their extinction. The paleoenvironment in which these early taxa lived will also be reconstructed from the type of rock that now entombs them.

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