Definition of infraorder in English:
infraorder
nounˈɪnfrəˌɔːdəˈinfrəˌôrdər
Biology A taxonomic category that ranks below a suborder.
Example sentencesExamples
- A large clade composed of taxa from the infraorders Anomura, Thalassinidea, and Brachyura is defined at node 54.
- The more familiar spiders are grouped into the suborder Opisthothelae, which is itself divided into two infraorders.
- Our phylogenetic analysis demonstrates that glyphcoids are legitimate members of the infraorder Astacidea and defines their relationship to other taxa within the clade.
- Glaessner employed the classification scheme of Moore and McConnick that included 66 families of fossil and extant decapods arrayed in 18 superfamilies, 8 infraorders, and 2 suborders.
- Our analysis places them as a basal clade in the infraorder based on a cervical groove that does not cross the midline of the carapace and the loss of the fractosternate condition.