Abstract: The anti-Darwinian "Typostrophe Theory" of  0.H.
  SCHINDEWOLF can be put to the test by revisiting the ammo-
  noid examples on which this macroevolutionary model was
  founded.  It is shown that none of the three theoretical elements
  saltationism, internalism, and cyclism can be supported by
  empirical data obtained from ammonoid research.  Putative
  saltations ("Typogenesis") were feigned because of the lack of
  knowledge of intermediate forms.  Internalistic und orthoge-
  netic development ("Typostasis") can only be favoued by ne-
  glecting possible functions of morphologic characters.  Pre-
  programmed extinction of "degenerate" clades ("Typolysis")
  is unlikely when ruling out "anthropocentric views regarding
  ammonoid morphology.  In terms of evolution of Palaeozoic
  ammonoids, there is no basis for the preference of the "Typos-
  trophe Theory" or some of its composing elements, including
  the "Type Concept" and "Proterogenesis", over the Darwinian
  evolutionary model and the Modern Synthesis.