suborder menotyphla

Thân thiện

A scientist carefully observes a suborder Menotyphla specimen in a natural history museum.

Definition

Noun: * Suborder Menotyphla: A taxonomic suborder within the order Insectivora (or other classifications), historically used to group together two families of small mammals: the elephant shrews (Macroscelididae) and the tree shrews (Tupaiidae). Modern biological taxonomy often places these families in separate orders.

Usage Notes

• This is a specialized term used in zoological and taxonomic contexts.
• It refers to a specific historical classification group. In contemporary taxonomy, the grouping "Menotyphla" is often considered obsolete or paraphyletic, meaning it does not include all descendants of a common ancestor.
• The defining characteristic historically was the presence of a cecum (a pouch connected to the intestine).

Examples

• Noun:
  • The suborder Menotyphla was distinguished from the Lipotyphla by anatomical features of the digestive system.
  • Early 20th-century classifications placed tree shrews within the suborder Menotyphla.

Advanced Usage

• The term is primarily found in historical scientific literature and discussions on the evolution of mammalian classification.
• It is often contrasted with the suborder Lipotyphla, which included moles, shrews, and hedgehogs.

Variants and Related Words

• Menotyphla (noun): The order-level grouping, without the prefix "suborder-".
• Macroscelidea (noun): The modern order containing only elephant shrews.
• Scandentia (noun): The modern order containing only tree shrews.
• Insectivora (noun): The former, now largely obsolete, order that contained both Menotyphla and Lipotyphla.

Synonyms

• There is no direct common-language synonym. In taxonomic history, it can be contextually synonymous with the grouping of "elephant shrews and tree shrews".

Different Meanings

• This term has only one specific meaning in biological taxonomy. It does not have general English usage.

Học thuật

Noun

1. elephant shrews; tree shrews

Từ đồng nghĩa

• Menotyphla
• suborder Menotyphla