'ICEHOUSE' WORLD

'HOTHOUSE'WORLD

Example

Late Cenozoic & Late Paleozoic

Mesozoic - Early Cenozoic

Tectonic Style

Collision, Telescoping

Stretching, Rifting

Sea Floor Spreading

Slow

Rapid

Ridge, Subduction Volcanism

Low

High

Sea-level

Narrow Shelves

Broad Epeiric Seas

High Latitude Climates

Glaciers, Taiga (T) & Tundra (T)

Deciduous Forests (L)

Mid Latitude Climates

Deciduous Forests (T) with Glacial Advances & Steppe

'Tropical' Wet & Stressed (P) Forests

Low Latitude Climates

Rainforests, Savanna (P) & Deserts

Savanna (P) & Deserts

Ocean Basins

Cold, Oxygenated

Warm, often Anoxic

Weathering, Erosion

Fast, Mechanical

Slow, Chemical