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Punctuated Equilibrium

Speciation Patterns: Stasis, Rapid Change & Cladogenesis

Evolution Mode

Speciation Type

Parameters

80
0.03
15
0.005
Punctuated Equilibrium (Eldredge & Gould, 1972): Species show long periods of stasis punctuated by rapid morphological change during speciation events.

Phyletic Gradualism: Evolution occurs through slow, continuous accumulation of small changes.
Time (MY)
0
Living Species
1
Total Lineages
1
Extinctions
0
Living Species
Extinct Species
Speciation Event