Thread:Raptorfarian/@comment-2602:306:CCD8:ECD0:5448:4F3C:8461:ECDA-20170711174107/@comment-32070106-20170712005212

There are 4 different varients of the bivalve family Megalodon:

M. hungaricum

M. longjiangensis

M. rostratiforme

M. yanceyl

When referring to megalodon, as in the shark, uncapitalize to emphasize that it is the species name. If Megalodon is capitalized, it is the bivalve family that the person is referring to, albeit unintentionally.