5 record(s) found for principal investigator "Lenz, Alfred" (multi-year projects are grouped):
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Silurian graptolites of the Arctic Islands
Principal Investigator: Lenz, Alfred C.
Licensed Year(s): 1994 1993 1992 1991 1990 1989 1988
Summary: As part of a long-term study, the researcher will continue to collect fossil specimens of graptolites in rocks collected from northern Cornwallis Island and central Ellesmere Island. The researcher is investigating why some species became extinct over 415 million years ago while other species went through rapid changes....


Licence #2660
Principal Investigator: Lenz, Alfred C.
Licensed Year(s): 1981
Summary: To collect fossils for future study, laboratory analysis and cataloguing....


Licence #2586
Principal Investigator: Lenz, Alfred C.
Licensed Year(s): 1980
Summary: To collect rock and fossil samples as part of an ongoing study of ancient plant and animal life....


Licence #2414
Principal Investigator: Lenz, Alfred C.
Licensed Year(s): 1979
Summary: To collect samples of graptolites and other fossils to better understand the geologic history of these regions....


Licence #1993
Principal Investigator: Lenz, Alfred C.
Licensed Year(s): 1976
Summary: To collect rocks and fossils....


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