What parts of a shark fossilize other than its teeth? (has everything to do with my last question)

Other parts of the shark that are fossilized is the cartilage, the fins, the spine, and the vertebrae. 
Hope this helped! :D
(Again XD)

Answerthe global climate during the paleogene departed from the hot and humid conditions of the late mesozoic era and began a cooling and drying trend which dispite having been periodically disrupted by warm periods such as the paleocene-eocene thermal maximum, persists today;