cladistics

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cladistics

(klə-dĭs′tĭks)
n. (used with a sing. verb)
A system of classification based on the presumed phylogenetic relationships and evolutionary history of groups of organisms.

cla·dis′tic, cla·dis′ti·cal adj.
cla·dis′ti·cal·ly adv.

cladistics

an approach to CLASSIFICATION by which organisms are ordered and ranked entirely on a basis which reflects recent origin from a common ancestor, i.e. like a family tree. The system is concerned simply with the branching of the tree and not with the degree of difference. The latter is the concern of evolutionary taxonomists who oppose the cladistic approach.
References in periodicals archive ?
Cladistic analysis relies upon the use of characters, that is to say, intrinsic features that are observable in a taxon (Kitching et al.
According to our comparisons and cladistic analysis, CCB-1 and AR-1-1097 probably belong to the same species, A.
Data matrix employed in the cladistic analysis of the LD P unistrigatus species group.
From our cladistic analysis of Dondersia and Lyratoherpia species, it seems clear that phylogenetic relationships can be understood better by the use of these characters.
We used cranial osteological features with post-cranial, ecological and behavioural characters from Hughes (1996, 2000) to perform a cladistic analysis of Cuculidae (Posso & Donatelli 2006) and it showed that Tapera and Dromococcyx should be placed in the most basal branch within an arboreal assemblage (Coccyzinae, Phaenicophaeninae and Cuculinae).
An example of the successful application of cladistics to arrange fossil taxa over a long geological time scale is the division of fossil taxa into clades such as Paranthropus, Australopithecus and Homo; cladistic analysis has demonstrated that there is more than one genus in the tribe Hominini and that the prime candidate for generic speciation was likely to be Paranthropus (Groves 1989: 215-227).
In order to clarify the higher-level phylogeny of teleosts we undertook a cladistic analysis based in numerous osteological and myological characters.
Diogo (anthropology, George Washington University) presents a cladistic analysis of osteichthyan higher-level interrelationships based on a phylogenetic comparison of 356 characters in 80 extent and fossil terminal taxa representing all major groups of Osteichthyes.
Therefore, trees produced by cladistic analysis can be considered approximations to the phylogeny of the group being studied.
This is inadequate for branching relationships found by cladistic analysis.
Evolutionary relationships between 15 Plasmodium species from Old and New World primates (including humans): a 18S rDNA cladistic analysis.
La modificacion hecha por Craw (1988), Cracraft (1991) y Morrone (1994) ha sido denominada recientemente (Porzecanski y Cracraft, 2005) como Analisis Cladistico de Distribuciones y Endemismo o CADE (por sus siglas en ingles Cladistic Analysis of Distributions and Endemism).