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Thursday, November 18, 2004

Pierolapithecus catalaunicus

Look at this face.

Pierolapithecus

That's Pierolapithecus catalaunicus, a Miocene hominoid from Spain described in this week's issue of Science. What's special about it is that it appears to be the closest thing to a last common ancestor of all of the great apes.

One of the nice things about being an atheist is that I get to reserve all of my awe for the things that warrant it…and the face of one of our distant cousins from 13 million years ago certainly deserves deep reverence.

That image is enough for me, but I suppose I can also share a few other tidbits from the paper. Here's the abstract:

We describe a partial skeleton with facial cranium of Pierolapithecus catalaunicus gen. et sp. nov., a new Middle Miocene (12.5 to 13 million years ago) ape from Barranc de Can Vila 1 (Barcelona, Spain). It is the first known individual of this age that combines well-preserved cranial, dental, and postcranial material. The thorax, lumbar region, and wrist provide evidence of modern ape–like orthograde body design, and the facial morphology includes the basic derived great ape features. The new skeleton reveals that early great apes retained primitive monkeylike characters associated with a derived body structure that permits upright postures of the trunk. Pierolapithecus, hence, does not fit the theoretical model that predicts that all characters shared by extant great apes were present in their last common ancestor, but instead points to a large amount of homoplasy in ape evolution. The overall pattern suggests that Pierolapithecus is probably close to the last common ancestor of great apes and humans.

And here's another photo of the collection of remains from this individual.

Pierolapithecus

And for the anthropologists, some details behind the cladogram for this organism.

Pierolapithecus
Cladogram depicting the phylogenetic relationships of Early and Middle Miocene hominoids, with special reference to P. catalaunicus. Only those taxa with evidence of the axial skeleton and/or wrist/ulnar joint complex are considered. Therefore, Afropithecus does not appear in the cladogram. 1: Absence of tail, medial torsion of the humeral head, low position of the maxillopremaxillary suture/nasal contact, wide anterior palate, and other features discussed in (39). 2: The lumbar vertebra of Morotopithecus shows clear affinities with extant apes. This is, however, the only evidence that situates this genus within the crown hominoids. 3: Strong rib curvature forming a wide and anteroposteriorly compressed thorax; long and robust clavicle, scapula situated on the back of the thorax; high intermembral index; ulnar shelf of radius excluding ulnar head from joint, mediolaterally broad radiolunate facet; reduced triquetrum with distal migration of pisiform, reduction of the contact between styloid process and triquetrum; lumbar vertebrae reduced in number, lacking ventral keel, with robust, wide, and short pedicles of the neural arch, caudally oriented spinous processes, and transverse processes that do not arise from the broader part of the vertebral body as in monkeys, nor from the pedicle as in extant great apes, but instead insert at an intermediate position at the junction between pedicle and body; wide ilium. 4: The orthograde body plan of Pierolapithecus situates this genus within the crown hominoids. The great ape facial anatomy makes it a sister group of great apes and humans. Short face, with the frontal processes of the maxillae, the nasals, and the orbits in the same plane, and flat nasals that project anteriorly beneath the level of the lower orbital rims; high zygomatic roots, a high nasoalveolar clivus, and a broad nasal aperture widest at the base. Triquetrum not articulating with the ulnar styloid. This clade includes all Late Miocene Eurasian hominoids.

I think I'll just look into those eyes for awhile.


Moyà-Solà S, Köhler M, Alba DM, Casanovas-Vilar I, Galindo J (2004) Pierolapithecus catalaunicus, a New Middle Miocene Great Ape from Spain. Science 306(5700):1339-1344.


Trackback url: http://pharyngula.org/index/trackback/1579/bEoAAtPr/

Comments:
#9309: covington — 11/18  at  05:51 PM
Is the scale marker correct?



#9310: DarkSyde — 11/18  at  06:00 PM
Finally some kick ass Miocene reamins of apes.



's avatar #9314: Ben — 11/18  at  06:33 PM
Those are some kickass canines. They even appear to be the best preserved parts.

"The great trouble is that the preachers get the children from six to seven years of age and then it is almost impossible to do anything with them." --Thomas Edison.



's avatar #9315: Ben — 11/18  at  06:34 PM
Wait, did Syd and I both use the term "kickass" in consecutive comments to describe homonoid remains?

Meh, I'm comfortable with who I am.

"The great trouble is that the preachers get the children from six to seven years of age and then it is almost impossible to do anything with them." --Thomas Edison.



#9316: — 11/18  at  06:45 PM
It is very difficult to read political stories on the Web without some rent-a-quote right winger popping up in the story to say their piece. It struck me today that with all the new hominid finds in the last few months, it is rather pleasant not to find a wingnut from ICR or AIG quoted in the mainstream articles. Sure, they usually find something to say about the fossils/remains on their own websites, but we rarely see them creeping into the mainstream.

I wonder for how long we will continue to have this luxury?



's avatar #9319: Chris Clarke — 11/18  at  07:14 PM
Holy crap, it's Uncle Irving!

"I do not think we should antagonize the religious when it is not warranted, though I think we should be willing to do so whenever it is.”
-- Glen Davidson



#9321: — 11/18  at  07:15 PM
Anyone out there want to put in a non-technical version for why this ape is closely related to the common ancestor of the great apes?

(Yes I do see the caption under the cladogram. "The lumbar vertebra of Morotopithecus shows clear affinities with extant apes" does not tell me much since I am not familiar with the vertebra of great apes.)

So is AiG going to say it is just a chimp? Or just an austalopithicine? Or just a gorilla? grin

Anti-spam: replace "user" with "harlequin2"



's avatar #9322: PZ Myers — 11/18  at  07:15 PM
I expect the scale is correct. This is not a big guy -- estimated weight was about 30kg (65lbs to non-metric people).

PZ Myers
Division of Science and Math
University of Minnesota, Morris



#9323: — 11/18  at  07:25 PM
Somehow, the idea that Salvador Dali and this guy looked out over the same terrain during their lifespans amuses me. Is it safe to assume that this was a scavenger, or would those canines be reserved for dominance?



Trackback: Pharyngula: Pierolapithecus catalaunicus Tracked on: pig and pepper (66.151.149.25) at 2004 11 18 18:23:25
More coolness on the evolution front... Link: Pharyngula: One of the nice things about being an atheist is that I get to reserve all of my awe for the things that warrant it…and the face of one of our distant



Trackback: Hello, Pierolapithecus catalaunicus Tracked on: Majikthise (66.151.149.25) at 2004 11 18 18:29:25
View full-size That’s Pierolapithecus catalaunicus, a Miocene hominoid from Spain described in this week’s issue of Science. What’s special about it is that it appears to be the closest thing to a last common ancestor of all of the great



#9326: — 11/18  at  08:02 PM
Mike -

Uh, I think it's pretty obvious that what we have here, is the skull of a severely diseased homo sapiens.

And, I would guess that he was from about 1500 BC, well before modernized medicine, and just a few thousand years after his incestual cousins, Adam and Eve, roamed the earth.

Of course, someone obviously unearthed his bones from his original grave site and buried him in Spain, for whatever reason.

(are you happy now, Andy?) smile



#9327: — 11/18  at  08:04 PM
Very cool. Amazing how much they can infer about body structure from so little material!



#9331: — 11/18  at  08:46 PM
Absolutely wonderful...something new to put together. I feel a new avatar coming PZ.

Richard: All male great apes have pronounced canines. Those of the Gorilla, a total vegetarian, are truly major league. We're the odd "man" out among the tailless primates.



#9337: HairyMuseum — 11/18  at  09:23 PM
Great day for fossils.

BBC news has some restorations here. The bottom image shows a Pierolapithecus face photoshopped onto a gorilla's body, which is a little wierd.

The photos of the fossils, however, are stunning. Thanks for the big pics, Dr. M.



#9343: — 11/18  at  10:38 PM
Perhaps there is a direct evolutionary path from Pierolapithecus Catalaunicus to G.W. Bush?



#9350: Steve Bates — 11/19  at  01:26 AM
Most impressive. You spent your time today describing the ancestry of hominids; I spent mine on the ancestry of web browsers... I think your efforts easily qualify as more significant. I am glad, as a rank amateur, that I have seen cladograms before.

FWIW, a few of us theists (in my case, a UU) have sufficiently flexible worldviews that we can admire anything we please, including (I might even say especially including) the likes of P. catalaunicus. Put another way: no dogma; no foul.



#9354: — 11/19  at  08:55 AM
PZ wrote:

"One of the nice things about being an atheist is that I get to reserve all of my awe for the things that warrant it…"

Sorry, PZ, I just can't let that slip by, though Steve Bates has already called you on it. A very real possibility is that the ability to experience "awe" is not zero sum and those of us with theistic tendencies might actually have more room for awe in our lives than our atheist friends. Somehow, I suspect my own experience of awe in the face of such discoveries is no less and quite possibly more than it would be were I not to be a theist.

You brought it up, so I hope you don't mind the response.

Cheers,

Shaggy



's avatar #9356: PZ Myers — 11/19  at  09:05 AM
Of course I don't mind a response.

You'll just have to understand that us atheists find it peculiar that people feel awestruck over vague superstitions about beings that don't even exist, never existed, and never will exist. But that's OK, as long as you're not one of those godidiots who tries to bury and destroy aspects of reality that conflict with your dogma, we have no argument.

PZ Myers
Division of Science and Math
University of Minnesota, Morris



#9359: — 11/19  at  10:17 AM
I am an amateur, but have to deal with a practicing physician who dismisses evolution outright on the basis that there was not enough time to evolve tiny mammals into humans in the 65M years of the Cenozoic Era. Seeing that P. catalaunicus looked like 'Uncle Irving' 13MYA, you have just cut that down to 52M years.

Question: Is 50MY enough time to evolve a rodent into a human? Or should I sell all my Darwin buttons before the market drops out? smile



#9363: — 11/19  at  11:28 AM
Peez writes:
"You’ll just have to understand that us atheists find it peculiar that people feel awestruck over vague superstitions about beings that don’t even exist, never existed, and never will exist."

That is a little juvenile for a reasonably educated person to say. On the other hand, if you really are that wise, power to you.

Yup, nice find.



#9365: — 11/19  at  11:49 AM
"Is 50MY enough time to evolve a rodent into a human?"

Sure. It took a lot less than that to go from four-legged land animal to what we would recognise as a whale.



#9367: — 11/19  at  12:00 PM
Finnish paleontologist, Mikael Fortelius, says that the claim about the particular ape being the latest common ancestor, is "very unique" (liberal translation).

According to him, it is "extremely improbable" that the common ancestor would be found from Spain, from which there is quite a distance to go to Africa.

Nice zoogeographic dilemma there?

He also notes that the assertion conflicts with the molecular evidence.



#9369: — 11/19  at  12:45 PM
Isn't it likely that there was a land bridge between Spain and Africa? I seem to recall reading that there is good evidence that the Mediterranean dried up and was flooded numerous times by the Atlantic Ocean over the eons. This would have given early primates a good chance to easily vacation in sunny Spain.



#9371: — 11/19  at  12:58 PM
Makes sense. Just because this find is in Europe, doesn't mean there weren't others down south, or that they weren't able to go there. Grass is always greener on the far side of the Mediterranean.

Suomilainen: What molecular evidence?



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