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Oldman Formation
The
Oldman Formation
is a stratigraphic unit of
Late Cretaceous
(
Campanian
stage) age that underlies much of southern
Alberta
,
Canada
. It consists primarily of
sandstones
that were deposited in
fluvial channel
and
floodplain
environments. It was named for exposures along the
Oldman River
between its confluence with the
St. Mary River
and the city of
Lethbridge
, and it is known primarily for its
dinosaur
remains and other fossils.
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