BioConcepts

cladisticsKladistik (ger.)

• 1) Based on or employing the concept of a clade or the ideas of cladistics; devised in accordance with cladistics. (OED 2011)
  category systematics

  1960

  Closeness of relationship in terms of phyletic lines can be called cladistic

  Cain, A.J. & Harrison, G.A. (1960). Phyletic weighting. Proceedings of the Zoological Society of London 135, 1-31: 3.
  

  1963

  Cladistic relationship refers to the paths of the ancestral lineages and therefore describes the sequence of branching of the ancestral lines

  Sokal, R.R, & Sneath, P.H.A. (1963). Numerical Taxonomy: 220.
  

• 2) Systematic classification of groups of organisms on the basis of shared characteristics thought to derive from a common ancestor. Also, the study of the branching of evolutionary lines of descent and the relationship between branches. (OED 2011)
  category systematics

  1965

  most phylogenists have usually considered at least three elements in expressing phylogenetic relationships. These, have been phenetics, cladistics, and time relationships, which we may call chronistics. […] The second aspect of phyletic relationship is cladistics, which in the sense in which we use it in this paper simply means a study of the pathways of evolution, i.e., how many branches are there, which branch came off from which other branch and in what sequence?

  Camin, J.H. & Sokal, R.R. (1965). The two taxonomies: areas of agreement and conflict. Syst. Zool. 14, 176-195: 186.
  

  1965

  Although the study is still in progress, it has already led to an empirical method which we believe capable of deducing probable cladistics from the characters of existing organisms.

  Camin, J.H. & Sokal, R.R. (1965). A method for deducing branching sequences in phylogeny. Evolution 19, 311-326: 311.