Futuyma, 2009, p. 116

Pangaea

Futuyma, 2009, p. 117

Photo courtesy of D. Haywick, USA Dept. Earth Sciences

K-T Boundary at Moscow Landing near Demopolis, AL

Sand in the

sandstone

deposits (hand)

just above the K-T

Boundary (arrow)

originated north of

Moscow Landing.

They were most

likely deposited

by receding

tsunami waves

generated by the

impact .

Futuyma, 2009, p. 117

Futuyma, 2009, p. 127

Futuyma, 2009, p. 127

Mobile Bay is a river valley that was flooded after the last Ice

Age when significant amounts of water from melted glacier

ice caused the sea level to rise to present levels.

Illustration courtesy of Dr. M.A. Conners, Dept of Earth Science, USA