Name____________________________________Period____________Date________ Lepidosauria WS#3 Order Sphenodontia 1. Lepidosaurs first appeared in the early __________________ period. 2. Early lepidosaurs were widespread. They are now represented by a single genus that inhabits ___________ ____________________. 3. When did the second lepidosaur lineage appear? ______________________________ 4. What is the name of the second lepidosauria lineage? _________________________ 5. What special tail adaptation do lepidosaurs have? __________________ (vocab word) 6. The __________________ are a surviving species of sphenodontia. 7. The tuataras of the order sphenodontia have a distinctly different skull than other squamata. They have a _______________ ______________. 8. Describe this skull. ____________________________________________________________________________________ ____________________________________________________________________________________ 9. What is different about the teeth of tuatara? ____________________________________________________________________________________ ____________________________________________________________________________________ 10. What do tuatara feed on? ____________________________________________________________________________________ ____________________________________________________________________________________ Words to know: o Oviparous – eggs are released by the female, the development of offspring occurs outside the body. o Ovoviviparous – eggs develop within the mother’s body without additional nourishment from the parent, and hatch within the parent or immediately after laying. o Viviparous – eggs develop within the female body, with nutritional aid of maternal parent as in mammals, many reptiles offspring are born as juveniles.
