1978
DOI: 10.1038/276759a0
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The cladistic revolution–can it make the grade?

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Cited by 53 publications
(12 citation statements)
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“…Teachers may often assume that cladograms are self-explicatory graphic devices to illustrate phylogenetic relationships, when in fact their interpretation is not trivial. As Halstead ( 1978 :760) put it: “Cladograms are difficult enough for experts in the field to comprehend fully”. Ironically, what he was advocating as the obvious alternative was phylograms—which were meant to not only express phylogenetic relationships, but, in addition, phenotypic similarity, distribution through geologic time and species number.…”
Section: Discussionmentioning
confidence: 99%
“…Teachers may often assume that cladograms are self-explicatory graphic devices to illustrate phylogenetic relationships, when in fact their interpretation is not trivial. As Halstead ( 1978 :760) put it: “Cladograms are difficult enough for experts in the field to comprehend fully”. Ironically, what he was advocating as the obvious alternative was phylograms—which were meant to not only express phylogenetic relationships, but, in addition, phenotypic similarity, distribution through geologic time and species number.…”
Section: Discussionmentioning
confidence: 99%
“…This is an early formulation of a “three‐taxon‐statement”. Compare the much publicized modern example of “the salmon, the lungfish, and the cow” (Halstead, 1978; C. Patterson, cited by Clouthier and Ahlberg, 1996, p. 445; see also Williams and Ebach, 2007) with one of Tschulok’s (1922, p. 116): doubtless, the lamprey is very different from any gnathostome, but when the chordate nature of Amphioxus was recognized, it became clear that the lamprey is nevertheless closer to gnathostome “fishes” than is Amphioxus . Note that this is not, for Tschulok (1922), a statement about phylogeny, or a phylogenetic tree; it is simply an expression of order in nature that allows the reconstruction of the “natural system”.…”
Section: Coherence Congruence and The Truth Of The “Theory Of Descent”mentioning
confidence: 99%
“…As with phenetics, there is surely a hidden subjective step when characters are selected (Halstead, 1978;Hull, 1979). Cladistic analyses depend upon the definition of the primitive character state, so that changes from this state can be identified.…”
Section: Cladistic Analysismentioning
confidence: 99%