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Phylogeny With a virtual absence of palaeontological evidence, theories of relationships among the lower invertebrates must rely on our understanding of living forms. Morphological and embryological evidence remains equivocal but the current accepted view is that nematodes are probably most

In: Freeliving marine nematodes

the resulting Indo-European phylogeny. The first fallacy they find is Bouckaert et al.’s failure to distinguish innovations from retentions. Bouckaert et al.’s method probabilistically identifies innovations in a dataset that contains both innovations and retentions, but P & L argue that this is

In: Language Dynamics and Change

Phylogeny The systematic position of the family Hepialidae The family Hepialidae represents a highly diverse assemblage of approximately 80 genera with more than 500 species. It is by far the most successful family of homoneurous moths. The monophyly of the family is based on a single specialized

In: Ghost Moths of Southern South America (Lepidoptera: Hepialidae)

7. PHYLOGENY A hypothesis concerning the genealogical relations within the genus Pyrrosia is presented in the form of a cladogram (Fig. 13). In this figure, the cladogram is presented as a 'synapomorphy scheme ' : a branching scheme superimposed on a species/character matrix that has been ordered

In: A Monograph of the Fern Genus Pyrrosia (Polypodiaceae)