Ontology highlight
ABSTRACT:
SUBMITTER: Ruta M
PROVIDER: S-EPMC1691537 | biostudies-literature | 2003 Dec
REPOSITORIES: biostudies-literature
Ruta Marcello M Jeffery Jonathan E JE Coates Michael I MI
Proceedings. Biological sciences 20031201 1532
A genus-level supertree for early tetrapods is built using a matrix representation of 50 source trees. The analysis of all combined trees delivers a long-stemmed topology in which most taxonomic groups are assigned to the tetrapod stem. A second analysis, which excludes source trees superseded by more comprehensive studies, supports a deep phylogenetic split between lissamphibian and amniote total groups. Instances of spurious groups are rare in both analyses. The results of the pruned second an ...[more]