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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… Expand
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Related topics

Related topics

7 relations
AutapomorphyCrown groupMaximum parsimony (phylogenetics)Monophyly
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Papers overview

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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… Expand
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Highly Cited
2007
Highly Cited
2007
Immunocytochemical detection of lignin-related epitopes in cell walls in bryophytes and the charalean alga Nitella
Lignins are complex phenolic heteropolymers present in xylem and sclerenchyma cell walls in tracheophytes. The occurrence of… Expand
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2005
2005
Origin and differentiation of nephridia in the Onychophora provide no support for the Articulata
  • G. Mayer
  • Zoomorphology
  • 2005
    • Corpus ID: 154981
Comparative morphology currently permits no unambiguous decision on the primary homology of the nephridia of Annelida and… Expand
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Highly Cited
2005
Highly Cited
2005
Phylogeny, character evolution, and classification of Sapotaceae (Ericales)
We present the first cladistic study of the largely tropical family Sapotaceae based on both morphological and molecular data… Expand
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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… Expand
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2004
2004
On the position of the digenean family Heronimidae: an inquiry into a cladistic classification of the Digenea
Brooks, O'Grady & Glen (1985b) placed the seemingly aberrant and highly derived family Heronimidae at the base of their cladogram… Expand
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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… Expand
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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… Expand
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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… Expand
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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
Three major arguments have been raised against the crucial claim, documented by Whit- tington and colleagues for the Burgess… Expand
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