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Table 1 Summary of suggested ammonoid archetypes

From: Evolutionary tradeoffs, Pareto optimality and the morphology of ammonite shells

Suggested task W S D Archetype number
Economy of shell material 1.3 0.7 0.65 1
Hydrodynamic drag 1.55 0.2 0.04 2
Shell growth 4.6 0.3 0 3
Compactness + economy 1.6 3.2 0.5 4
Compactness + hydro. 1.07 1.8 0.01 5
  1. Coordinates of the archetypes found by the archetype analysis algorithms with 5-archetypes, along with their putative tasks.
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