Blog

Since many flightless dinosaurs were found to exhibit feathers, what other functions are feathers useful for?

What is the reason for permineralization?

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

Identify the amniotic skull type below:

What can affect an animal carcass’ condition that could prevent fossilization? Please choose all of the correct answers:

What can be considered a type of fossil?

Mastication begins after food passes beyond which of the following structures?

Instead of having a perpendicular pubis-ischium arrangement (like many saurischians), ornithischians have a rearward-facing pubis that lies parallel with the ischium (also mis-characterized as “bird-hip”). This arrangement (indicated by the red arrow in the figure below) is technically referred to as a/an:

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:

Both Ceratopsia and Pachycephalosauria belong to a clade called ______.