The clade Dinosauria includes all dinosaurs as well as birds, which are descended from the dinosaurs.
A group composed of all the species descended from a single common ancestor; a monophyletic group
Phylogeny: A monophyletic taxon; a group of organisms which includes the most recent common ancestor of all of its members and all of the descendants of that most recent common ancestor From the Greek word "klados", meaning branch or twig
A group of species with a common ancestral species Cladistics is then a system of classification based on the chronology (sequential order) in which the branches (clades) emerge within a phylogenetic tree Cladistic [2: ] speciation (called cladogenesis) is where an ancestral species diverges into two or more new species A graph called a cladogram is a phylogenetic tree using this method [2: Anagenetic speciation ]
a group of biological taxa or species that share features inherited from a common ancestor
A group of replicators consisting of (1) their most recent common ancestor (the founder) and (2) all offspring of members of the group (that is, all descendants of the founder) A monophyletic group A descent group of chain letters
A monophyletic taxon; a group of organisms which includes the most recent common ancestor of all of its members and all of the descendants of that most recent common ancestor From the Greek word "klados", meaning branch or twig
A monophyletic group (= a branch on a cladogram, diagnosed by at least one synapomorphy)
also called a subtype A group of related HIV isolates classified according to their degree of genetic similarity (such as of their envelope proteins) There are currently two groups of HIV-1 isolates, M and O M consists of at least nine clades, A through I Group O may consist of a similar number of clades (See also isolate )
In biological systematics, a clade is a monophyletic grouping of taxa where all members share a common ancestor; the clade is defined by the presence of one or more derived features shared by the members (synapomorphies)
A group of organisms, such as a species, whose members share homologous features derived from a common ancestor
a group of related HIV isolates classified by their degree of genetic similarity There are two major groups of HIV-1 isolates, called M and O Group M consists of at least eight clades, A through H (See isolate )
clade
Pronunciation
Etymology
[ 'klAd ] (noun.) 1911. From Ancient Greek κλάδος (“shoot, branch”).