Lecture 06

Question 1

Ediacaran

Answer 1

in volcanic ash
no basic animal anatomical feature
alternative evolutionary experiment in multicellularity

Question 2

1 eg. Ediacaran organism

Answer 2

Dickinsonia

Question 3

5 eg. Burgess Shale Fauna organism

Answer 3

Hallucigenia, Anomalocaris, Opabinia, Wiwaxia, Pikaia

Question 4

interpretation of Burgess Shale Fauna

Answer 4

Stephen Jay Gould
Conway Morris

Question 5

timing of Cambrian Explosion

Answer 5

molecular clock& phylogeny