Definition

1. Noun:
   • A former taxonomic grouping: "Duplicidentata" refers to a historical suborder classification within mammalian taxonomy that was considered part of Rodentia and was coextensive with the order Lagomorpha, encompassing gnawing mammals.

Usage Examples

• Noun:
  • The obsolete taxon Duplicidentata included rabbits, hares, and pikas.
  • In older biological texts, you might find references to the suborder Duplicidentata.

Advanced Usage

• In taxonomic history: The term is used almost exclusively in discussions of the historical development of biological classification systems, particularly regarding the relationship between rodents (Rodentia) and lagomorphs (Lagomorpha).
  • The concept of Duplicidentata illustrates how scientific understanding of mammalian phylogeny has evolved.

Variants and Related Words

• Duplicidentate (adj): Pertaining to or characteristic of the former group Duplicidentata.
  • The duplicidentate dentition featured a second pair of incisors.

Synonyms

• Historical/obsolete synonym: None are direct, but it referred to the group now recognized as the order Lagomorpha.

Notes on Meaning

• Important Clarification: "Duplicidentata" is an archaic term no longer used in modern scientific classification. It is important for understanding historical literature but should not be used to describe current taxonomic groups. The animals it once contained are now classified in the extant order Lagomorpha, which is distinct from Rodentia.

Noun

1. in former classifications considered a suborder of Rodentia coextensive with the order Lagomorpha: gnawing animals