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Symplesiomorphy

Known as: Plesiomorph, Symplesiomorphic, Symplesiomorph 
In phylogenetics, a plesiomorphy, symplesiomorphy or symplesiomorphic character is an ancestral character or trait state shared by two or more taxa… 
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Papers overview

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Highly Cited
2013
Highly Cited
2013
The evolutionary significance of introgression has been discussed for decades. Questions about potential impacts of transgene… 
2004
2004
AbstractThe Phosphatocopina were long considered as the oldest, Cambrian, record of ostracode Crustacea. However, our detailed… 
2003
2003
Abstract.  A two‐stage cladistic analysis of 114 characters from adult and immature stage morphology provided phylogenetic… 
Review
2002
Review
2002
The recent explosion of phylogenetic information has had an impact far beyond the Želd of systematic biology. Workers in a… 
2001
2001
Ossicles of Holothuria (Metriatyla) scabra Jaeger 1833 vary mainly in early juveniles between 0.9 and 15mm long. While ossicles… 
Highly Cited
1999
Highly Cited
1999
A phylogeny describes the hierarchical pattern of descent of some group of species from a common ancestor. If information is… 
Highly Cited
1996
Highly Cited
1996
ICHTHYOSAURS are extinct marine reptiles, probably belonging to the Diapsida1, that ranged from the Early Triassic to Late… 
Highly Cited
1995
Highly Cited
1995
It has been claimed that quantified features are inappropriate for phylogenetic anal- ysis. We consider that claim to be true… 
Review
1991
Review
1991
In the last 15 years understanding of the higher systematics of Araneae has changed greatly. Large classical superfamilies and… 
Highly Cited
1991
Highly Cited
1991
  • S. Gould
  • Paleobiology
  • 1991
  • Corpus ID: 55073097
Three major arguments have been raised against the crucial claim, documented by Whittington and colleagues for the Burgess Shale…