[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Subject Index][Author Index]
Re: Tyrant taxonomy (was RE: Big Bakker article in June Discovery Mag)
In a message dated 5/2/03 7:58:46 AM Pacific Daylight Time,
tholtz@geol.umd.edu writes:
<< Fair enough. The important point is, of course, that "genericometers" are
all calibrated to individuals: that is, there are no universally accepted
objective criteria for deciding when two individuals are different at the
"species" level or the "genus" level or what have you. George might have a
genericometer set for very broad species or genus definitions; Bakker's is
notoriously set on a very narrow calibration. >>
Unfortunately, there is not yet even any agreement on the particular
calibration of genericometers that separates lumpers from splitters.