Hostname: page-component-77c78cf97d-rv6c5 Total loading time: 0 Render date: 2026-04-24T11:16:19.046Z Has data issue: false hasContentIssue false

Temporal data in phylogenetic systematics: an example from the mammalian fossil record

Published online by Cambridge University Press:  20 May 2016

J. G. M. Thewissen*
Affiliation:
Department of Biological Anthropology and Anatomy, Duke University Medical Center, Durham, North Carolina 27710

Abstract

A method of phylogenetic inference is proposed for taxa that are known from large samples spaced closely in time. The method employs elements of cladistic and stratophenetic methods, and consists of four steps. 1) Morphologically homogeneous clusters are recognized within temporally and geographically constrained samples. 2) Temporally disjunct and geographically dispersed taxa are recognized, and their anagenetic evolution and geographic variation documented. 3) A character matrix is constructed for the taxa and analyzed cladistically. 4) Resulting cladograms are used to construct a phylogenetic tree with additional input from temporal, morphological, ecological, and geographical data. This method supplements the use of cladistically analyzed morphological data with data that are not suited for cladistic analysis, and thus reduces the amount of unused data.

Information

Type
Research Article
Copyright
Copyright © The Paleontological Society 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Article purchase

Temporarily unavailable