Meaning of Morrison Formation | Babel Free
Definitions
A sequence of Upper Jurassic sedimentary rock in the western United States, noted as the most fertile source of dinosaur fossils in North America.
Equivalents
Examples
“Later it was given a member rank and assigned to the Morrison Formation[…].”
“The paleoecology of the Morrison Formation is still a matter⟳ of debate⟳ (compare⟳ Dodson and others 1980 and 1983 with Tidwell 1990).”
“In all areas of Utah where it has been dated, the uppermost Morrison Formation is 148 Ma based on ^{₄₀}\!Ar/^{₃₉}\!Ar ages (Kowallis and others, 1988), placing it in the early Tithonian (Ogg, 2004).”
CEFR level
B2
Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.
This word is part of the CEFR B2 vocabulary — upper intermediate level.
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