FOSSIL INVERTEBRATES

BEETLES: study of late Quaternary beetle faunas began with G.R. Coope's (1977) study of British deposits, J.V. Matthews (1975) North American, S.A. Elias (1985) western U.S.

TECHNIQUE:
  1. splitting along bedding plains and hand-picking fossils from surface
  2. kerosene flotation
  3. in macrofossil (lake sediment, packrat middens) after screening, produces few articulated remains

INTERPRETATION: (indicator approach)
Beetles provide an example of DISAGREEMENT OF FOSSIL INDICATORS:
TYPES OF LAG IN QUATERNARY PALEOECOLOGY (two types)
  1. LAGS DUE TO SLOW POPULATION CHANGE (diversity effects)

  2. LAGS DUE TO FACTORS OTHER THAN POPULATION CHANGE


DISHARMONIOUS ASSEMBLAGES
Morphologic Methods Avoid the Assumption of Stasis: based on modern biogeographic theory.
Invertebrates Readings

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