To give a long-winded Latin classificatory name, forsooth, to a thing that would destroy the faith of ages!
"The Beckoning Hand and Other Stories The Beckoning Hand--Lucretia--The Third Time--The Gold Wulfric--My Uncle's Will--The Two Carnegies--Olga Davidoff's Husband--John Cann's Treasure--Isaline and I--Professor Milliter's Dilemma--In Strict Confidence--The "
Grant Allen
The only difference between the two specimens that might be of classificatory significance is the difference in size of the posterolingual cusp of P4. At present the range of intraspecific variation in the morphology of P4 has not been documented for any species of apatemyid.
"Records of the Fossil Mammal Sinclairella, Family Apatemyidae, From the Chadronian and Orellan"
William A. Clemens
But when we consider the facts of embryology we find that the developing organism advances from stage to stage by steps which are more or less comparable to the various levels and branchings of the classificatory tree.
"Herbert Spencer"
J. Arthur Thomson