"The crocodylian family Crocodylidae includes the true crocodiles, which are the members of the subfamily Crocodylinae, as well as potentially the false gharial, the only extant ...
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member of the subfamily Tomistominae. The latter is a subject of controversy as to whether it is a crocodile or actually belongs in the family Gavialidae. Further genetic analysis has to be done to come to a final conclusion. Pending such analysis, since the 1950s classification as either Crocodylidae or Alligatoridae is currently occular-temporal based, with members of the latter generally responding ´later´ while members of the former respond ´in a while´." - (en.wikipedia.org 22.01.2020)