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… (More)
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7 relations
AutapomorphyCrown groupMaximum parsimony (phylogenetics)Monophyly
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Papers overview

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2007
2007
A contribution to the ultrastructural knowledge of the pollen exine in subtribe Inulinae (Inuleae, Asteraceae)
To better understand the relationships within the Asteroideae and Inuleae, the structure of the pollen exine was investigated in… (More)
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2004
2004
Phosphatocopina – ostracode-like sister group of Eucrustacea
The Phosphatocopina were long considered as the oldest, Cambrian, record of ostracode Crustacea. However, our detailed analysis… (More)
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2004
2004
Ocellar atavism in Coleoptera : plesiomorphy or apomorphy ?
Ocelli and ocellus-like structures on the vertex of the adult head were examined in different representatives of Coleoptera and… (More)
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Highly Cited
2003
Highly Cited
2003
The problem with “the Paleoptera Problem:” sense and sensitivity
While the monophyly of winged insects (Pterygota) is well supported, phylogenetic relationships among the most basal extant… (More)
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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 15 mm long. While ossicles… (More)
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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… (More)
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1999
1999
The ontogeny of the notochord of Branchiostoma lanceolatum
Anatomical details of the ontogeny of the notochord of the european lancelet (ˆ amphioxus), Branchiostoma lanceolatum, are… (More)
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1987
1987
Ultrastructure of coelomic lining in echinoderm podia: significance for concepts in the evolution of muscle and peritoneal cells
Ultrastructural data are presented on the histological organization of coelomic lining in the podia of ten species of the five… (More)
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1987
1987
A phylogenetic study of the antenna cleaner in Formicidae, Mutillidae, and Tiphiidae (Insecta, Hymenoptera)
The morphology of the tibio-tarsal antenna cleaner (strigilis) of 30 species of Formicidae, 14 species of Mutillidae and 9… (More)
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1981
1981
Lungfishes, tetrapods, paleontology, and plesiomorphy. Bulletin of the AMNH ; v. 167, article 4
 
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