It’s Time to Get Serious About Taxonomy
Posted by: CDarwin in Primatology, Science IssuesWe have a rant today.
I’ve been doing the research for my next “meet an ancestor” today, and I keep coming across one word, “Cebidae.” Apparently, the ecology of our ancestor’s genus was similar to that of the Cebidae. Well, that’s quite interesting, or at least it would be if I knew at all what the authors meant by Cebidae.
The debate we’re getting into here is over the macrotaxonomy of the New World Monkeys. Some authorities like to split it up into lots of little families, as many as seven, while some prefer to refer it in its entirety to one family, incidentally the Cebidae.
Thus, Walker’s Primates of the World, Stein and Rowe’s Physical Anthropology 8th ed., and the Pictorial Guide to the Living Primates give the Cebidae as 11 genera ranging from squirrel monkeys to spider monkeys; everything but marmosets and tarmarins. The Encyclopedia of Human Evolution prefers to exclude only the spider monkeys from the Cebidae and include the marmosets. Animal Diversity Web lumps in all the New World Monkeys. And finally, Wikipedia authoritatively states that the Cebidae is “one of the four families of New World monkeys now recognised,” and is a combination of marmosets, squirrel monkeys, and capuchins (the actual genus Cebus).

Cebus, about the only member of the Cebidae everyone agrees on
Obviously, this is chaos, and it does absolutely nothing to serve the interests of science. Nor is it the only example of such taxonomic pissyfighting in the annals of biology. We’ve gotten to this point because the of the egos of the “authorities.” Anyone who writes a major text uses a different taxonomy because they can and they know someone will follow them. The only way to fix it is for researchers to swallow hard, take a stiff shot of brandy, and start using a standard nomenclature. That was the point of Linnean taxonomy in the first place, wasn’t it?
The individual standard doesn’t matter that much. No matter what your personal opinion about the affinities of Callimico, there really isn’t so much known about New World Monkey relationships that any reasonable arrangement of the major subfamilies can be said to be absolutely wrong. Groves’ Primate Taxonomy in particular has gained a lot of traction in recent years, and I for one will be going with him in this blog (which is obviously among the most influential publications in the the field :P).
So, in summary, sometimes you just have to suck it up and subordinate your ego to the cause of effective communication, be you a primatologist, microbiologist, jellyfish researcher, or even out in the real world.
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February 28th, 2008 at 12:24 am
You’d think that in the 21st century, we’d be able to get taxonomy problems mostly ironed out, what with the plethora of genetic information out there. I think we’re still mostly stuck in the 1800s because different groups of scientists decided to come up with their own names for the same species (call it narcissism).
February 28th, 2008 at 10:28 pm
You have many forms of taxonomy and it does not surprise me to have conflictions. Trying to elucidate species which have a lineage in regards to evolution provides so many issues. If you cant get an exact picture of the when and or how from either straight genetics or some other aspect of physiology you have to go to indirect means like bioinformatics stuff. Mathematical taxonomy does not sit any better in regards to accurately portraying evolution either, as again no real branch of taxonomy in regards to biology does currently. I think one simple reason of this is evolution never stops, species do speciate from other species and evolution does not have to produce some perfect error free entity perfectly suited for neat taxonomic labeling. Not to mention epigenetic effects and sexual reproduction barriers. I mean what if you have a large change of general phenotypes within a population that true speciation has not occurred in yet? Evolution implies history and in that you cant ignore such.
March 29th, 2008 at 2:36 pm
Actually, one of the professors I worked with during my undergrad years, Liliana Cortes-Ortiz, did some taxonomic work on New World monkeys using genetic data.
http://www.ncbi.nlm.nih.gov/pubmed/12470939?ordinalpos=3&itool=EntrezSystem2.PEntrez.Pubmed.Pubmed_ResultsPanel.Pubmed_RVDocSum
Granted, this is for one genus, but she was also working on a chapter for a book on NW monkey classification, and I actually helped her search for some additional genetic data in the NCBI genbank so she could do her own analysis. So the problem is definitely being worked on, worry not!