Cladistics developments

Qadistics is a hierarchical classification technique which reveals evolution courses of organisms based on their shared characters. It was originally introduced and developed by Hennig (1966, republished in 1999). Cladistics generates phylogenetic trees (Fig. 1), which are acyclic tree graphs that show the relationships between the studied entities and are called cladograms. ... 

A cladistic analysis supports an evolution hypothesis (Kitching et al. 1998) that describes how the studied entities developed and branched... 

Paleontology of the past is revived in molecular systematics of the present, in its search for ancestors and centers of origin. The revival ignores, or retreats from, the cladistic reform of paleontology of the 1970s, with historical roots in the work of Louis Dollo (1857-1931) and fossil Inngfishes. The subsequent development of cladistics has been arrested, too, by compnter implementations of character optimization and the ideology of total evidence, which reflects a phenetic rather than cladistic objective the overall similarity of synapomorphy. 

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