The Extant Phylogenetic Bracket and The Importance of Reconstructing Soft Tissues in Fossils
Lawrence M. Witmer 1995 Cambridge University Press Functional Morphology in Vertebrate Paleontology, Thomason, J.J. (ed.), Cambridge Univ. Press, New York. pp.19-33
In the original source for modern functional morphology reconstructions, Dr. Witmer of Ohio State University, Athens, details the methods for inference of soft-tissue anatomy using phylogenetics. These inferences are classified as type I, II, or III. Type I is a direct phylogenetic inference, Type II is an inference based on the presence of a character in a sister group, and type III is an inference based on the presence of a feature in outgroups.
