Posted on April 11, 2013 by afarensis, FCD
Posted on February 24, 2013 by afarensis, FCD
OH-65 was found in 1995 in the Upper Bed I at Olduvai Gorge. It dates to 1.942-1.785 mya. OH-65 is a nearly complete maxilla that has been attributed to Homo habilis. It’s morpholoogy is similar to that of KNM-ER 1470 and the authors of the paper announcing the find use that similary to make two arguments.
This overall concordance of the ER 1470 and OH 65 morphologies with that of the type specimen of H. habilis casts doubt on H. rudolfensis as a biologically valid taxon. Consequently, H. rudolfensis (Alexeev) Groves would be a junior synonym for H. habilis Leakey, Tobias, and Napier …
The architectural similarities between OH-65 and ER 1470 support the judgement that late Pliocene hominids from Olduvai Gorge and East Lake Turkana usually assigned to H. habilis instead represent more than one species…
On the surface these seem to be contradictory arguments unless they are arguing that because H. rudolfensis is a junior synonym for H. habilis the species in the H. rudolfensis group have to be named something else. At any rate, below is a picture of OH-65.
Blumenschine et al 2003 Late Pliocene Homo and Hominid Land Use from Western Olduvai Gorge, Tanzania
Blumenschine et al 2003 Late Pliocene Homo and Hominid Land Use from Western Olduvai Gorge, Tanzania Supplemental Online Material
Filed under: Homo habilis, Know Your Hominin | Comments Off
Posted on August 25, 2012 by afarensis, FCD
Regourdou 1 is a partial neanderthal skeleton discovered in 1957 near Lascaux. Also discovered were the pedal remains of a second individual.
Volpato et al (2012) Hand to Mouth in a Neandertal: Right-Handedness in Regourdou 1
Filed under: Know Your Hominin, Neanderthals | Comments Off
Posted on June 27, 2012 by afarensis, FCD
The answer may surprise you, or not. A new paper in Nature provides some insight into Australopithecus sediba’s diet. I don’t have access to Nature but Science Daily has the press release where we learn:
The researchers concluded from their scientific tests that bark and other fracture-resistant foods were at least a seasonal part of the A. sediba diet. While bark and woody tissues had not been previously documented as a dietary component of any other ancient African hominids, such foods are consumed by many contemporary primates and contain both protein and soluble sugars. The diet of A. sediba may have been similar to that of today’s African savanna chimpanzees, Sandberg said.
Researchers performed stable isotope analysis, analyzed phytoliths trapped in dental plaque, and examined microwear on the teeth of Au. sediba to arrive at those conclusions. I have to agree with Matt Sponheimer on this:
“What fascinates me is that these individuals are oddballs,” said CU-Boulder’s Sponheimer. “I had pretty much convinced myself that after four million years ago most of our hominid kin had diets that were different from living apes, but now I am not so sure. And while our sample is too small to be conclusive, the rate at which Malapa is spewing hominid fossils makes me reasonably certain we won’t have to wait another two million years to augment our data set. “
As mentioned above I don’t have access to Nature so can some one send me a copy of the article? My email address is on the “about” tab and the article can be found at DOI: 10.1038/nature11185.
Filed under: Australopithecus sediba | 2 Comments »
Posted on May 29, 2012 by afarensis, FCD
A recent article in PNAS looks at the metopic suture on the Taung endocast. Before discussing the article a few words are in order about the frontal bone. (more…)
Filed under: Australopithecus, Australopithecus africanus, Paleoanthropology | 2 Comments »
Posted on May 24, 2012 by afarensis, FCD
The Dederiyeh Neanderthal infant was found in Dederiyeh Cave, in Syria, in 1993. The skelton is that of a two year old and dates to 50,000-70,000 years ago.
Source: Akazawa et al 1995 Neanderthal infant burial from the Dederiyeh cave in Syria
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Posted on March 29, 2012 by afarensis, FCD
The fact that two species of Australopithecus coexisted, more or less, in South Africa has been known for years. One of the more interesting South African specimens (Stw 573) is dated to somewhere between 3.5 and 3 million years. It has a divergent big toe. As does a new partial foot found in East Africa. The foot is somewhere around 3.46 MYA. Only a partial foot was found so the specimen has not been attributed to a species. The find is reported in Nature.
I don’t have access to Nature, and would be grateful if someone could send me a copy of the article. I have the paper now, thanks!
Filed under: Australopithecus | Comments Off
Posted on February 21, 2012 by afarensis, FCD
Can someone with access send me the following articles:
A critical analysis of claims for the existence of Southeast Asian australopithecines, Journal of Human Evolution Volume 26, Issue 1, Pages 3–21 http://dx.doi.org/10.1006/jhev.1994.1002
Meganthropus, australopithecines and hominids, American Journal of Physical Anthropology Volume 11, Issue 1, pages 1–38, DOI: 10.1002/ajpa.1330110112
Further remarks on the relationship between “Meganthropus” and australopithecines, American Journal of Physical Anthropology Volume 13, Issue 3, pages 429–445, DOI: 10.1002/ajpa.1330130304
My email address is on the about page. (more…)
Filed under: Australopithecus, Homo habilis, Paleoanthropology | 1 Comment »
Posted on January 19, 2012 by afarensis, FCD
Sambungmacan 3 was discovered in 1977 and spent some time on the antiquities market, eventually ending up in New York, where its importance was realized. It has since been returned to Indonesia. It is attributed to Homo erectus and may be the skull of a female.
Source: Delson et al (2001) The Sambungmacan 3 Homo erectus Calvaria: A Comparative Morphometric and Morphological Analysis
For Further Reading:
Broadfield et al (2001) Endocast of Sambungmacan 3 (Sm 3): A new Homo erectus from Indonesia. The Anatomical Record 262:369-379
Delson et al (2001) The Sambungmacan 3 Homo erectus Calvaria: A Comparative Morphometric and Morphological Analysis. The Anatomical Record 262:380-397
Laitman and Tattersall (2001) Homo erectus newyorkensis: An Indonesian fossil rediscovered in Manhattan sheds light on the middle phase of human evolution. The Anatomical Record 262:341-343
Marquez et al (2001) New Fossil Hominid Calvaria From Indonesia—Sambungmacan 3. The Anatomical Record 262:344–368
Filed under: Hominini, Homo, Homo erectus, Know Your Hominin | Tagged: Homo erectus | Comments Off
Posted on November 6, 2011 by afarensis, FCD
A. L. 822-1 was discovered in 2000 at Hadar, Ethipia. It is attributed to Australopithecus afarensis and is, at the time of discovery, the only complete skull of a female A. afarensis. The skull dates to approximately 3.1 MYA and is one of three that preserves both a cranium and a mandible (the others being A.L. 444-2 and A.L. 417-1).
Kimbel and Rak (2010) The cranial base of Australopithecus afarensis: new insights from the female skull. Phil. Trans. R. Soc. B 2010 365, 3365-3376, doi: 10.1098/rstb.2010.0070
Kimbel (2009) Australopithecus afarensis and the Mosaic Evolution of the Hominin Cranial Base. Note: This is an audio presentation given at a seminar hosted by the Royal Society in 2009.
Filed under: Australopithecina, Australopithecus, Australopithecus afarensis, Hominini, Know Your Hominin | Tagged: Australopithecus afarensis | Comments Off