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Total known Dinosaur species?
Dustin Mendus writes:
> Hi, I'm looking for a website, PDF, or book which has a recent
> total of all known dinosaur species preferably from 2008, but 05-07
> is acceptable. I'm sourcing this in a research paper.
The most recent published count is that of Wang and Dodson (2006):
Wang, Steve C., and Peter Dodson. 2006. Estimating the
diversity of dinosaurs. PNAS 103 (37): 13601-13605.
They wrote (p. 13601), "we currently recognize 527 valid known genera
of dinosaurs, excluding genera based on isolated teeth or single
elements" and also noted (p. 13603) "90% of dinosaur genera are
monospecific (the mean number of species is 1.2, with 98.3% of genera
having 3 or fewer species)", so they recognised about 1.2 * 527 = 632
However, there are two things to note here: 1. Dodson is rather
conservative in what he recognises as valid: for example, by omitting
all genera based on single elements, he would rule out distinct,
diagnosable genera such as Xenoposeidon; and 2. the rate of new names
is not slowing down, in fact I find it hard to keep track of all the
/o ) \/ Mike Taylor <email@example.com> http://www.miketaylor.org.uk
)_v__/\ "Omit needless words" -- Strunk & White.