Family
Loggerhead sea turtles are a member of the Cheloniidae family of turtles, which includes all of the six hard shelled sea turtle species. The only sea turtle not in this family is the Leatherback sea turtle, as it has a softer shell. Cheloniidae is divided into 5 genii, so 4 of the 6 species are in their own genus, the Loggerhead is one of these.
The below diagram shows the relations between all sea turtle species -
The below diagram shows the relations between all sea turtle species -