Who is the type specimen of Homo sapiens?

March 20, 2009 • 12:43 pm

by Greg Mayer

The answer is: Carl Linnaeus, the great Swedish naturalist. But there’s a story behind this bare fact.

One of the great problems facing natural history in the 18th century was the problem of diversity: the great variety of plants and animals from all over the world that began flooding into European museums as the result of voyages of exploration. Although it was not until Darwin’s idea of descent with modification that a fully satisfactory solution to the problem began to come within reach, Linnaeus made a signal contribution by establishing a nomenclature– a system of names– by which this diversity could be ordered, and with which it was possible to discuss the problem.  The principles of the system have undergone considerable development since then, but the 10th edition of Linnaeus’ Systema Naturae remains the starting point of zoological nomenclature.

One of the post-Linnaean developments is that all species should have a type specimen. A type specimen is not, as the name might seem to imply, a typical (in the sense of normal or average) member of a species.  Rather it is a specimen that fixes the application of a name to a particular zoological species.  Thus, I know that the name Anolis roosevelti applies to the large, arboreal (and now, unfortunately, apparently extinct) anole lizard of the islands east of Puerto Rico, because I can go the Museum of Comparative Zoology and examine the type specimen that is kept and carefully preserved there, and see that this specimen is indeed a member of that species.  Having the application of a name fixed is most important when it turns out that more than one species is masquerading under one name.  My friend and colleague Richard Thomas of the University of Puerto Rico, for example, discovered that Eleutherodactylus portoricensis, one of the most beloved frogs of Puerto Rico, actually consisted of two species, one of which had previously gone unrecognized.  The type specimen of E. portoricensis belonged to one of these two species, so it, of course, retained the name portoricensis; the newly recognized one was actually the more common and widespread of the two, and he gave it the name  Eleutherodactylus coqui, after its vernacular name, coqui, which was given in imitation of its nocturnally ubiquitous call.

All of this is by way of introduction to the issue at hand: who is the type specimen of Homo sapiens? In last week’s issue of Nature, Andrew Hendry of the Redpath Museum says

curiously, humans have never had a designated type specimen, despite attempts by American palaeontologist Edward Drinker Cope to have himself so designated

Is this so? No. In 1959, W.T. Stearn, in an article (Systematic Zoology 8:4-22) commemorating the 200th anniversary of the 10th edition of the Systema Naturae, wrote

Since for nomenclatorial purposes the specimen most carefully studied and recorded by the author is to be accepted as the type [specimen], clearly Linnaeus himself, who was much addicted to autobiography, must stand as the type of his Homo sapiens!

While there is a certain tongue-in-cheek quality to this, it satisfies the criteria of the Code of Zoological nomenclature, and thus Stearn has designated Linnaeus as the type specimen of Homo sapiens (Linnaeus, in naming Homo sapiens, had not designated a type specimen, which in his day was not customarily done).

So, as noted at the start, we do have a type specimen, Carl himself.  Did the great paleontologist Edward Drinker Cope ever try to have himself made the type specimen of Homo sapiens? Again, no.  Although Cope did leave his body for study, and there may be an oral tradition at the Academy of Natural Sciences that he wanted to be the type, there’s no written evidence he did. Earle Spamer, now of the American Philosophical Society, wrote a detailed article (Proceedings of the Academy of Natural Sciences of Philadelphia 149:109-114) exploring this claim. The written claim arises in a popular book by Louie Psihoyos and John Knoebber called Hunting Dinosaurs, with a foreword by famed paleontologist Bob Bakker. In the book, the authors relate how in about 1993 they borrowed Cope’s skull, and traveled around with it, showing it to paleontologists.  Bakker, according to the story, told them that man had no type specimen, and since Cope wanted to be it, they set about making it so.  But even if Bakker was unaware of Stearn’s designation decades earlier, the details of the story are all wrong.  Bakker would have known that a type designation does not require the description and measurements pictured and described in the book, that the type specimen must be chosen from among specimens examined by the original author (in this case Linnaeus in 1758, 82 years before Cope’s birth), and that there is no official “review board” to which such designations are submitted (the International Commission on Zoological Nomenclature can be appealed to in order to set aside the rules, but they don’t review actions that follow the rules).  In the foreword, Bakker himself makes no mention of ever having tried to actually make Cope the type specimen. No publication by Bakker claiming to make Cope the type has ever appeared, and Psihoyos and Knoebber’s journalistic account of Bakker’s supposed but unfulfilled intention to do so does not itself constitute a published nomenclatural act under the Code of Zoological Nomenclature.

It’s hard to tell how much Bakker might have been pulling Psihoyos’ and Knoebber’s legs, or just playing along, or if the authors just misinterpreted a lot of what Bakker said and did. Spamer seems to take this all a bit too seriously, and may err in ascribing much of it to Bakker, who did not actually author any part of the book but the foreword. But Carl Linnaeus is the type specimen of Homo sapiens; and Edward Drinker Cope has never been put forward for the job, and, without special action by the International Commission, he wouldn’t even qualify for it.

(Note by JAC:    Thanks to Dr. David Hillis of the University of Texas at Austin, who helped clarify this situation.)

Update: I’ve just come across a newspaper article that says that Bakker did publish a designation of Cope as the type specimen in 1994 in the Journal of the Wyoming Geological Society. The author of the newspaper article, Scott LaFee, did speak to some knowledgable people, including Ted Daeschler and Gary Rosenberg of the Academy of Natural Sciences. The article doesn’t note, though, that Cope is barred from being the type specimen because he wasn’t among the specimens seen by Linnaeus, and that Stearn’s designation (although mentioned by LaFee) preempts any later designation by Bakker. LaFee also seems to think a type specimen must be “typical” in the sense of average, which, as noted in the original post, it needn’t be.  I’m going to try to track down Bakker’s paper, and will post my findings here.

Update 2: I’d posted the update right after finding the mention of the article in the  Journal of the Wyoming Geological Society, because I thought it would take me a while to get a copy of the right issue of an obscure journal, and I wanted to immediately correct my claim that Bakker never published. Well, it turns out I was right in the first place. There is apparently no such journal.  There isn’t even a Wyoming Geological Society (there is a Wyoming Geological Association). I’m not sure where the claim originates: I’ve not found a mention of the fictional journal in Psihoyos’s book. It seems to me that some deliberate joking has gone on here. I’ll also mention here that I’ve seen some web commentary to the effect that Stearn’s designation doesn’t count, because “nobody can agree“.  This is incorrect: nomenclatural actions that follow the rules are valid, regardless of whether or not others think it was a good action to take.

9 thoughts on “Who is the type specimen of Homo sapiens?

  1. The answer is: Carl Linnaeus, the great Swedish naturalist. But there’s a story behind this bare fact.

    Now I’ll know when I walk by that statue on the Midway beside Harper Memorial Library here at the U of C that I’m looking at a type specimen.

  2. [Sniggering]
    Very nice. I’m not a nomenclature wonk, but what you say about Linnaeus does have the ring of truth about it.

    I actually found this blog becasue I was following up on the “Cope” claim in the very issue of Nature that you cite. Which is all getting a bit recursive for my tastes.

    Go on – put it in for the correspondence pages at Nature. It’s the sort of silliness that gets a few people really het up and keeps the rest of us amused on the bus to work.

  3. If Linnaeus is the type specimen, is he carefully preserved somewhere so we can compare other potential homo sapiens to him to see if they are of the same species?

  4. Linnaeus is carefully preserved in his grave at the Uppsala Cathedral. Let him rest in peace.

  5. If the Linnaeus’s corpse (Scientifically the holotype of Homo sapiens Linnaeus, 1758) was decayed, then the holotype of Homo sapiens has to be considered as lost. Then we can describe a neotype !!!

  6. @eatbees,
    There are procedures for designating an alternative type specimen, in the event that the original is lost, or otherwise unavailable. I think Thasun has it right when he refers to such material as a “neotype” (but like I said, I’m not a nomenclature wonk. As the several years between me writing my comment and it getting posted mught indicate!).
    It’s a problem that has been faced on multiple occasions, not least in the aftermath of various wars when museums have been variously bombed, looted, or moved. But normal administrative incompetence made the existence (and consensus agreement) of such rules necessary a LONG time ago.

  7. Linnaeus isn’t in fact the holotype, because he wasn’t designated as such at the time of description. Rather he is the lectotype, a specimen chosen from a set of specimens nominated by the describer (called syntypes) after the fact, when the describer did not nominate a specific holotype. Linnaeus’s description of Homo sapiens L. is simply “Know thyself” (in Greek), so arguably everyone alive in 1755, or at least everyone who read the book, was a syntype.

    There is, however, the further question of whether Linnaeus’s description is a sufficient one. If not, Homo sapiens is a nomen nudum, a name put forward without adequate description, and as such invalid; anyone can make themselves taxonomically famous by republishing the name with a proper description. I doubt, however, if the ICZN …

    1. If Linnaeus’s set of specimens were syntypes, the code is allowed to designate a lectotype (because the entire syntype series lived in 1755 are now lost !). In that case still can designate “Linnae” as the lectotype of H. sapiens. Again, that lectotype is also now lost, the code is allowed to designate a neotype (only if required – probably someone can argue it is required to do so). I have a doubt the commission would accept the petition of nomen nudum !

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