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Re: Magnapaulia, "new" lambeosaurine from Baja California, Mexico
To first answer the question that is actually about science: it has
often been said that hadrosaurs or ceratopsids are all the same
postcranially (or nearly so), but very few people have ever looked...
precisely because everyone already knows they're all the same. To a
large extent it's a self-fulfilling prophecy!
Am 13.06.2012 07:06, schrieb firstname.lastname@example.org:
I understand where you are coming from, but I think that the
disproportionate number of dinosaur genera is deceptive, that's all.
Genera are _already_ deceptive. Ranks are deceptive.
However, the genus, though arbitrary, still is unavoidable.
Yeah, because the International Code of Zoological Nomenclature requires
that every species be referred to a genus (to the point that genus names
are part of species names).
Dinosaurologists dodge species-level ranks quite frequently, as
compared to other extinct vertebrates.
That's because they've understood that even species are deceptive.
As of February 2009, there were 147 different species concepts out
there. Depending on the species concept, there are from 101 to 249
endemic bird species in Mexico... yes, almost 2 1/2 as many.
I also think that assigning a specimen to a new/seperate genus for
geographical reasons is not always a good idea.
Who does that? Has anyone done that since the 1930s?
I think the 'genus' issue can be compared to using different
No, it can't. It's not a unit of biodiversity or of anything else. It's
a unit of taste.
And while many species concepts describe units of biodiversity, they
each describe different things! They have nothing in common except the
word "species". Again, the only real reason why we keep pretending
otherwise is the ICZN, which doesn't allow you to give a name to an
animal if you don't refer it to a species.
Please forgive me for such a weird approach to this; I have my tastes
and opinions when it comes to classification...
I have tastes when it comes to icecream; not when it comes to science.
The study of biodiversity is science.