Differences on biological classification?
Phylum and division are both listed under the same taxonomic ranks. The wikipedia page for phylum states that


  Traditionally, in botany the term division was used instead of
  "phylum", although from 1993 the International Code of Nomenclature
  for algae, fungi, and plants accepted the designation "phylum".


What you have to keep in mind is that the scientists categorizing plants and animals worked in isolation for a long time and only recently have they come together to build a tree of life for all organisms (rather than just working separately on plants / animals / bacteria)