Phylogenetic Classification of Fossils with Recent Species

Phylogenetic Classification of Fossils with Recent Species

Several aspects of present classificatory theory lead to logical weaknesses in phylogenetic classification and practical difficulties in classifying fossil forms. Modifications of classificatory methods are proposed to resolve these problems. The use of monotypic taxa has no logical basis and should...

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Bibliographische Detailangaben
Veröffentlicht in:Systematic Zoology. - Society of Systematic Zoology, 1952. - 25(1976), 3, Seite 271-282
1. Verfasser: Farris, James S. (VerfasserIn)
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 1976
Zugriff auf das übergeordnete Werk:Systematic Zoology
Schlagworte:Classification Paleontology Phylogeny Biological sciences Health sciences History Mathematics Philosophy
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520 |a Several aspects of present classificatory theory lead to logical weaknesses in phylogenetic classification and practical difficulties in classifying fossil forms. Modifications of classificatory methods are proposed to resolve these problems. The use of monotypic taxa has no logical basis and should be abandoned. (Species and genera must be exempted from this rule for reasons of nomenclature.) In consequence, sister groups may not be required to have the same rank. Phylogenetic classification can nonetheless properly represent sister group relationships. Categorical rank may not be determined by age of origin. Age of differentiation may be used to assign rank, as may temporal span: the elapsed time between the differentiation of a monophyletic group and the extinction of the group's last species (or the present, for living groups). Category names should be generated by a systematic rule, to avoid confusion if many ranks are required. Categorical ranks may not be analogized formally to integers, but should be regarded as rational numbers. 
650 4 |a Classification 
650 4 |a Paleontology 
650 4 |a Phylogeny 
650 4 |a Biological sciences  |x Biology  |x Biological taxonomies  |x Taxa 
650 4 |a Biological sciences  |x Biology  |x Evolutionary studies  |x Evolutionary biology  |x Evolutionary genetics  |x Phylogenetics 
650 4 |a Biological sciences  |x Paleontology  |x Paleobiology  |x Taphonomy  |x Fossils 
650 4 |a Biological sciences  |x Biology  |x Biological taxonomies 
650 4 |a Health sciences  |x Medical sciences  |x Immunology 
650 4 |a History  |x Historical methodology  |x Historiography  |x Genealogy  |x Ancestry 
650 4 |a Biological sciences  |x Ecology  |x Species extinction 
650 4 |a Mathematics  |x Pure mathematics  |x Discrete mathematics  |x Number theory  |x Numbers  |x Real numbers  |x Rational numbers  |x Integers 
650 4 |a Biological sciences  |x Biology  |x Zoology 
650 4 |a Philosophy  |x Logic  |x Paradoxes 
655 4 |a research-article 
773 0 8 |i Enthalten in  |t Systematic Zoology  |d Society of Systematic Zoology, 1952  |g 25(1976), 3, Seite 271-282  |w (DE-627)331747065  |w (DE-600)2052619-2  |x 00397989  |7 nnns 
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952 |d 25  |j 1976  |e 3  |h 271-282