Reference Sources
Turtles General
https://en.wikipedia.org/wiki/Turtle
https://en.wikipedia.org/wiki/List_of_Testudines_families

Ontario Turtles
https://ontarioturtle.ca/turtles/
Photo Field Guide to the Reptiles and Amphibians of Ontario; Scott D. Gillingwater, Alistair S. MacKenzie, St. Thomas Field Naturalist Club Inc. 2015

Turtle Citizen Science
https://ontarionature.org/programs/citizen-science/reptile-amphibian-atlas/species/