Archaeomenes, [545]

Archaeoteuthis, [669]

Archaeus, [677]

Archenteron, [20], [56], [130], [132]

Archeobatis, [446]

Archinephric duct, [397], [398]

Arctoscopus, [663]

Argenteum, [168]

Argentina, [565], [569]

Arges, [595]