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Quaternates is an obsoleteorder ofmammals created byHenri-Marie Ducrotay de Blainville in 1839, imitatingLinnean nomenclature (Primates). It included the subordersGravigrada,Pachydermata, andRuminantia.

• Secundates
• Tertiates

• BLAINVILLE, Henri-Marie Ducrotay de (1839): “Nouvelle classification des Mammifères” inAnnales Françaises et Etrangères d’Anatomie et de Physiologie Appliquées à la Médicine et à l’Histoire Naturelle, 3, pp. 268-269

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