To determine a numerical age of a rock or fossils, we need to acquire:  a). the original amount of parent isotope at the time of its formation b). the amount of parent isotope currently present c). rate of decay of that isotope.

Which factor does NOT contribute to the planning process for dinosaur collection?

Did you watch the welcome video?

Which of the following hypotheses disagrees with Paleontologist J. A. Hopson’s five predictions on a hadrosaurid crest’s role in sexual selection? If the crests were used as a visual cue/signal:

A chewing mechanism adopted by ornithopods that helps them efficiently chew through the toughest of plant materials by moving their upper jaws is called _________. 

Listed below are important factors related to the understanding of cladograms. Which of the following is false?

An Ornithopod dinosaur, Maiasaura is____________.  Select all that apply.

Identify the amniotic skull type below:

Both Ceratopsia and Pachycephalosauria belong to a clade called ______.

As we learned in class, the head crests of some Ornithopods (e.g. Lambeosaurinae) were not exaggerated through their evolution.  What is the possible explanation for this?  Support this argument using another evolutionary trend seen in different members of Ornithopods.