The Phylum Echinodermata continued! Please see the links for last week.
Your final two quizzes (#11 and #12) will be “superquizzes” with lots of extra credit. Quiz #11 will be fill-in-the-blank questions from the first half of the course (through bryozoans); quiz #12 from the second.
Pentremites godoni, a blastoid from the Lower Carboniferous of Illinois.
Geology in the News –
How to read a scientific paper? Here are some useful ideas.
Here’s a cool look at the surface under an Antarctic ice sheet. There is more topography than previously thought, which may be good news as it may be retarding overall melting.
There was once a view that liquid water, even if a salty brine, still flowed on Mars. Geologists put an end to that speculation.