Here you can see the full plastron and the partial shell extensions which grew out to form the partial upper-shell. The take-home messages of this find are:
- Odontochelys was likely aquatic
- Odontochelys had a plastron (lower shell) but not a full carapace (upper shell)
- Odontochelys had teeth! (all modern turtles have toothless beaks)
What a beautiful and bizarre looking creature! For more on turtle evolution, check out the UCMP Berkeley's page on anapsids here.