Flashcards
Proterozoic Specifically Ediacaran fossils (20)
Cards in this deck (10)
- 1☼What are the Ediacaran fossils?☼Bizarre, soft-bodied fossils
- 2How old are they?Neoproterozoic in age
(~635-540 Ma) - 3What localities produce them?-South Australia
-White Sea (Russia)
-Namibia (Africa)
-New Newfoundland (Canada)
-Great Basin (w. USA) - 4In what rocks are they usually found?Usually in quartzose sandstones
- 5In what environments (facies) are they found?Shallow ocean facies
- 6Did they have hard parts?No - they were soft-bodied
- 7Do paleontologists know for sure how to classify Ediacaran fossils?No
- 8What is Kingdom Vendobionta?A separate kingdom of life
-Proposed by Adolf Seilacher
-No mouth
-No gut
-No internal organs - 9Do modern paleontologists accept the idea of Kingdom Vendobionta as biologically valid?No - some are likely animals
-some are algae
-some are problematic
Dolf has since changed his mind about the new kingdom - 10Did a mass extinction occur at the end of the Proterozoic?Yes - The ~end-NP extinction