Archosauromorpha & Testudines

EEB267H1

Announcements

• Lab Exam Tuesday, November 25
  • Location: RW013 (regular lab room)
  • two sittings: 10 am (P0101 & P0202) and 2 pm (P0201 & P0202)
  • Duration: ~90 minutes
  • Bell-ringer style: specimen-based, 2m30s per station
  • no aid sheet

Announcements

• Final Exam Saturday, December 13
  • Location: SS2135
  • Time: 2pm - 4pm
  • Duration: 2 hours
  • Same format as Midterm 1 & 2
  • Aid sheet permitted: handwritten, double-sided, Letter/A4 size

Recap: Diapsida

• Two major clades:
  • Lepidosauromorpha
  • Archosauromorpha

Archosauromorpha

Includes

• Crocodylia
• Birds
• Turtles (probably)
• … and many extinct allies, like non-avian Dinosaurs

Why are turtles a “probably”?

• Very challenging to place phylogenetically
  • Unique morphology
• Most molecular evidence suggests turtles as sister to crocs + birds

And now for a guest lecture by your TA, Robin Lloyd!