| Geology 105 - Paleontology | ||||||
| Course Syllabus | Course Schedule | Journal Assignments | Course Handouts | Critter Charts | Department Home Page | Kusnick Home Page |
Know these terms:
| water vascular system | tube feet | calyx |
| columnal | holdfast | |
| regular urchins | irregular urchins |
Be able to answer these questions:
1. Fill out Critter Charts for crinoids and echinoids.
2. Why are echinoderms considered to be close relatives of chordates?
3. Know what these early echinderms were (we won't be looking at them in lab): cystoids, carpoids, helicoplacoids, edrioasteroids
4. How are blastoids and crinoids different in morphology?
5. What environments did crinoids prefer? How did crinoids subdivide their preferred habitat?
6. How does the morphology of regular and irregular urchins reflect their life habits and feeding mechanisms?