Cladistic

The cladistic methodology was also represented in several published works, foremost among them the article, Cladistic analysis or cladistic classification?

A cladistic analysis of DNA sequence data of the S7 ribosomal protein intron 1 supports the view that it is distinct enough to constitute a monotypic subfamily.

A comprehensive morphological cladistic analysis by Schuchert (1993) supports the basal position of Anthozoa with the Scyphozoa and Cubozoa being more closely related to each other than to Hydrozoa.

Antelope are not a cladistic or taxonomically defined group.

Around the same time the development of effective polymerase chain reaction techniques made it possible to apply cladistic methods of analysis to biochemical and genetic features as well.

As comparatively few polychaete taxa have been subject to cladistic analysis, some groups which are usually considered invalid today may eventually be reinstated.

But there is no reason why, e.g., species identified using phenetics cannot subsequently be subjected to cladistic analysis, to determine their evolutionary relationships.

Cladistic analysis, among other modern techniques, helps to compensate for an often incomplete and fragmentary fossil record.

Cladistic analysis suggests that Parailurus and Ailurus are sister taxa.

Cladistic parsimony is used to support the hypotheses that require the fewest evolutionary changes.

Classifying diverse groups of closely related organisms that differ very subtly is difficult using a cladistic approach.

Comparison of bird and dinosaur skeletons through cladistic analysis strengthens the case for the link.

Following the cladistic analysis of Goetsch et al.

For a full treatment of cladistic parsimony, see Elliott Sober 's Reconstructing the Past: Parsimony, Evolution, and Inference (1988).

However, hybridization has been observed among Orbignya and Phoenix'' species, and using chloroplast DNA in cladistic studies may produce inaccurate results due to maternal inheritance of the chloroplast DNA.

However, one cladistic analysis J. Reitner. 1990.

However, the requirement that taxa be monophyletic - rather than paraphyletic as in the case of the Corvida - is itself part of the cladistic view of Taxonomy, not necessarily followed to an absolute degree by other schools.

In 1988, Jacques Gauthier proposed a cladistic definition of Reptilia as a monophyletic node-based crown group containing turtles, lizards and snakes, crocodilians, and birds, their common ancestor and all its descendants.

In the 1970s, John Ostrom revived the dinosaur–bird theory, which gained momentum in the coming decades with the advent of cladistic analysis, and a great increase in the discovery of small theropods and early birds.

Methodology main seeAlso The cladistic method interprets each character state transformation implied by the distribution of shared character states among taxa (or other terminals) as a potential piece of evidence for grouping.