The term
Homo rudolfensis is the name given to a few fossil
fragments unearthed in 1972. The species supposedly represented
by this fossil was designated Homo rudolfensis because these
fossil fragments were found in the vicinity of Lake Rudolf
in Kenya. Most paleoanthropologists accept that these fossils
do not belong to a distinct species, but that the creature
called Homo rudolfensis is in fact indistinguishable
from Homo habilis.
Richard Leakey, who unearthed
the fossils, presented the skull designated KNM-ER 1470, which
he said was 2.8 million years old, as the greatest discovery
in the history of anthropology. According to Leakey, this
creature, which had a small cranial capacity like that of
Australopithecus together with a face similar to
that of present-day humans, was the missing link between Australopithecus
and humans. Yet, after a short while, it was realized that
the human-like face of the KNM-ER 1470 skull, which frequently
appeared on the covers of scientific journals and popular
science magazines, was the result of the incorrect assembly
of the skull fragments, which may have been deliberate. Professor
Tim Bromage, who conducts studies on human facial anatomy,
brought this to light by the help of computer simulations
in 1992:
When it [KNM-ER 1470] was first reconstructed,
the face was fitted to the cranium in an almost vertical
position, much like the flat faces of modern humans. But
recent studies of anatomical relationships show that in
life the face must have jutted out considerably, creating
an ape-like aspect, rather like the faces of Australopithecus
.192
Richard Leakey misled
both himself and the world of paleontology about Homo
rudolfensis. |
The evolutionary paleoanthropologist J. E. Cronin
states the following on the matter:
... its relatively robustly
constructed face, flattish naso-alveolar clivus, (recalling
australopithecine dished faces), low maximum cranial width
(on the temporals), strong canine juga and large molars
(as indicated by remaining roots) are all relatively primitive
traits which ally the specimen with members of the taxon
A. africanus.193
C. Loring Brace from Michigan
University came to the same conclusion. As a result of the
analyses he conducted on the jaw and tooth structure of skull
1470, he reported that "from the size of the palate and the
expansion of the area allotted to molar roots, it would appear
that ER 1470 retained a fully Australopithecus -sized
face and dentition."194
Professor Alan Walker, a paleoanthropologist
from Johns Hopkins University who has done as much research
on KNM-ER 1470 as Leakey, maintains that this creature should
not be classified as a member of Homo-i.e., as a
human species-but rather should be placed in the Australopithecus
genus.195
In summary, classifications like Homo habilis
or Homo rudolfensis, which are presented as transitional
links between the australopithecines and Homo erectus,
are entirely imaginary. It has been confirmed by many researchers
today that these creatures are members of the Australopithecus
series. All of their anatomical features reveal that they
are species of apes.
This fact has been further established by two
evolutionist anthropologists, Bernard Wood and Mark Collard,
whose research was published in 1999 in Science.
Wood and Collard explained that the Homo habilis
and Homo rudolfensis (Skull 1470) taxa are imaginary,
and that the fossils assigned to these categories should be
attributed to the genus Australopithecus :
More recently, fossil species have been
assigned to Homo on the basis of absolute brain size, inferences
about language ability and hand function, and retrodictions
about their ability to fashion stone tools. With only a
few exceptions, the definition and use of the genus within
human evolution, and the demarcation of Homo, have been
treated as if they are unproblematic. But ... recent data,
fresh interpretations of the existing evidence, and the
limitations of the paleoanthropological record invalidate
existing criteria for attributing taxa to Homo....in practice
fossil hominin species are assigned to Homo on the basis
of one or more out of four criteria. ... It is now evident,
however, that none of these criteria is satisfactory. The
Cerebral Rubicon is problematic because absolute cranial
capacity is of questionable biological significance. Likewise,
there is compelling evidence that language function cannot
be reliably inferred from the gross appearance of the brain,
and that the language-related parts of the brain are not
as well localized as earlier studies had implied......
...In other words, with
the hypodigms of H. habilis and H. rudolfensis assigned
to it, the genus Homo is not a good genus. Thus, H. habilis
and H. rudolfensis (or Homo habilis sensu lato for those
who do not subscribe to the taxonomic subdivision of "early
Homo") should be removed from Homo. The obvious taxonomic
alternative, which is to transfer one or both of the taxa
to one of the existing early hominin genera, is not without
problems, but we recommend that, for the time being, both
H. habilis and H. rudolfensis should be transferred to the
genus Australopithecus .196
The conclusion of Wood and
Collard corroborates the conclusion that we have maintained
here: "Primitive human ancestors" do not exist in history.
Creatures that are alleged to be so are actually apes that
ought to be assigned to the genus Australopithecus
. The fossil record shows that there is no evolutionary link
between these extinct apes and Homo, i.e., human
species that suddenly appears in the fossil record.
  
192 Tim Bromage,
"Faces From the Past," New Scientist, vol. 133, issue
1803, 11 January 1992, p. 41. (emphasis added)
193 J. E. Cronin, N. T. Boaz, C. B. Stringer,
Y. Rak, "Tempo and Mode in Hominid Evolution," Nature,
vol. 292, 1981, pp. 117.
194 C. L. Brace, H. Nelson, N. Korn, M.
L. Brace, Atlas of Human Evolution, 2. b., Rinehart
and Wilson, New York, 1979.
195 Alan Walker and Richard E.F. Leakey,
"The Hominids of East Turkana", Scientific American,
vol. 239 (2), August 1978, p. 54.
196 Bernard Wood, Mark Collard, "The Human
Genus," Science, vol. 284, No 5411, 2 April 1999,
pp. 65-71. |