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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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Related topics

Related topics

7 relations
AutapomorphyCrown groupMaximum parsimony (phylogenetics)Monophyly

Papers overview

Semantic Scholar uses AI to extract papers important to this topic.
Highly Cited
2013
Highly Cited
2013
Introgression of crop alleles into wild or weedy populations
The evolutionary significance of introgression has been discussed for decades. Questions about potential impacts of transgene… 
2004
2004
Phosphatocopina – ostracode-like sister group of Eucrustacea
AbstractThe Phosphatocopina were long considered as the oldest, Cambrian, record of ostracode Crustacea. However, our detailed… 
2003
2003
Cladistic analysis of the Neotropical butterfly genus Adelpha (Lepidoptera: Nymphalidae), with comments on the subtribal classification of Limenitidini
Abstract.  A two‐stage cladistic analysis of 114 characters from adult and immature stage morphology provided phylogenetic… 
Review
2002
Review
2002
Some Limitations of Ancestral Character-State Reconstruction When Testing Evolutionary Hypotheses
The recent explosion of phylogenetic information has had an impact far beyond the Želd of systematic biology. Workers in a… 
2001
2001
Ossicle change in Holothuria scabra with a discussion of ossicle evolution within the Holothuriidae (Echinodermata)
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
The Maximum Likelihood Approach to Reconstructing Ancestral Character States of Discrete Characters on Phylogenies
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
Eel-like swimming in the earliest ichthyosaurs
ICHTHYOSAURS are extinct marine reptiles, probably belonging to the Diapsida1, that ranged from the Early Triassic to Late… 
Highly Cited
1995
Highly Cited
1995
MORPHOMETRICS, HOMOLOGY, AND PHYLOGENETICS: QUANTIFIED CHARACTERS AS SYNAPOMORPHIES
It has been claimed that quantified features are inappropriate for phylogenetic anal- ysis. We consider that claim to be true… 
Review
1991
Review
1991
Systematics and Evolution of Spiders (Araneae)
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
The disparity of the Burgess Shale arthropod fauna and the limits of cladistic analysis: why we must strive to quantify morphospace
  • 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… 
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