Construct · 1 fields · 1 citations

clade: a standalone construct

One name. One construct. A landmark on the map.

● anchor · a single construct in one field Nearest construct by meaning·not indexed
clade1 CONSTRUCTCladeHUXLEY · 1957

A single standalone construct; nearby constructs are located against it in the Collider. Tap a field for its definition, unit, and measures.

Systematics

An ancestor and all its descendants

In systematics, a clade is a group made up of a single ancestral lineage together with all of its descendants and nothing else, a complete branch cut from the tree of life. Clades nest within clades, and recognising them is the goal of a classification meant to reflect genealogy rather than overall resemblance. Julian Huxley introduced the term in his 1957 The three types of evolutionary process, distinguishing it from a grade, a group united by level of organisation rather than ancestry. The construct is a monophyletic unit of common descent, the basic object that phylogenetic trees are built to display.[1]

Unit
A complete ancestor-plus-all-descendants branch of the tree of life
Recovery means
Not applicable
Measured by
Delimited by shared derived characters that diagnose a single ancestor and all its descendants

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Nearby constructs

synapomorphy1 fields · 1 citationsanchor · a single construct in one fieldpolytomy1 fields · 1 citationsanchor · a single construct in one field

References

  1. Huxley, J. (1957). The three types of evolutionary process. Nature, 180(4584), 454–455. https://doi.org/10.1038/180454a0

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