[Taxacom] What is Homo sapiens

[Stephen Thorpe]

"A genus is a nexus of radiation from one ancestral species, adaptive or otherwise"

Wouldn't this apply equally to any taxon above species? Isn't the entire kingdom Animalia "a nexus of radiation from one ancestral species"?

Stephen

--------------------------------------------
On Fri, 1/6/18, Richard Zander <Richard.Zander at mobot.org> wrote:

 Subject: Re: [Taxacom] What is Homo sapiens
 To: "taxacom" <taxacom at mailman.nhm.ku.edu>, "Tony Rees" <tonyrees49 at gmail.com>, "Stephen Thorpe" <stephen_thorpe at yahoo.co.nz>
 Received: Friday, 1 June, 2018, 8:31 AM
 
 
 
 Sure, Stephen,
 there is a "universal criterion for what constitutes a
 genus". A genus is a nexus of radiation from one
 ancestral species, adaptive or otherwise. Since cladistics
 does not focus on multifurcations but seeks
  to eliminate them, there is no cladistic definition of a
 genus. Anyone whose ideational straightjacket is cladistics
 cannot even conceptualize a natural, empirically defined
 genus concept.
 
 
 
 Richard
 
 
 
 
 
 
 From: Taxacom
 <taxacom-bounces at mailman.nhm.ku.edu> on behalf of
 Stephen Thorpe <stephen_thorpe at yahoo.co.nz>
 
 Sent: Wednesday, May 30, 2018 6:13 PM
 
 To: taxacom; Tony Rees
 
 Subject: Re: [Taxacom] What is Homo sapiens
  
 
 
 "By
 logical extension, hypothetical neanderthalensis and
 heidelbergensis clades, regardless of their relationship to
 a sapiens clade, should be regarded as separate
 genera"
 
 
 
 By logical extension, I would infer that the author is a
 cladist with little or no understanding of taxonomy! The
 quoted statement is nonsense at every level! It just makes
 no sense at all! There are no universal taxonomic criteria
 for what constitutes a genus
  (other than monophyly). Therefore you just make the genus
 Homo inclusive enough to include all 3 clades - easy peasy,
 problem solvedy!
 
 
 
 Stephen
 
 
 
 --------------------------------------------
 
 On Thu, 31/5/18, Tony Rees <tonyrees49 at gmail.com>
 wrote:
 
 
 
  Subject: Re: [Taxacom] What is Homo sapiens
 
  To: "taxacom"
 <taxacom at mailman.nhm.ku.edu>
 
  Received: Thursday, 31 May, 2018, 11:00 AM
 
  
 
  From the cited paper:
 
  "...For, if the suggestion of a clade that
 includes
 
  H. sapiens is correct, it follows that Homo
 
  should be restricted to members
 
  of this
 
  clade. By logical extension, hypothetical
 neanderthalensis
 
  and
 
  heidelbergensis clades, regardless of
 
  their relationship to a sapiens
 
  clade,
 
  should be regarded as separate genera." This
 sounds
 
  like devil's
 
  advocacy to me (or
 
  reduction to the absurd) - if workers cannot even agree
 
  on whether of not neanderthalensis is a
 
  subspecies of sapiens, putting it
 
  into a
 
  separate genus makes no sense to this observer - or
 perhaps
 
  I am
 
  missing something.
 
  
 
  Also I noticed an odd statement at the
 
  beginning - "Thus it fell upon
 
  Blumenbach (1969) to provide the first
 
  morphological diagnosis of Homo
 
  sapiens." - especially considering that
 
  the Blumenbach in question died
 
  some 129
 
  years earlier (I remembered from the recent thread in
 which
 
  we
 
  discussed the earliest scientific name
 
  for the dingo). I checked the cited
 
  reference and it is a 1969 reprint of an 1865
 
  work published under the
 
  title "The
 
  anthropological treatises of Johann Friedrich
 
  Blumenbach", in
 
  which is reprinted 
 
  Blumenbach's "On the natural variety of
 
  mankind",
 
  first(?) published in 1775.
 
  So if "Blumenbach (1969)" were replaced by
 
  "Blumenbach
 
  (1775)"
 
  it would make rather more sense. Hopefully the remainder
 of
 
  the
 
  paper is a bit more factually correct
 
  :)
 
  
 
  Regards - Tony
 
  
 
  Tony Rees, New South Wales,
 
  Australia
 
  https://about.me/TonyRees
 
 
 
 
 
 
 
 Tony Rees - New South Wales,
 Australia | about.me
 
 about.me
 
 I am a software engineer in New South Wales, Australia.
 Visit my website.
 
 
 
 
 
 
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