Acanthoderus is a monotypic genus of stick insects in the tribe Pachymorphini. The single species Acanthoderus spinosus has a known distribution in Australia.
"Acanthoderus gecko" in the description of Gray, 1859
In biology, for ranks such as genus or family, a monotypic taxon is a taxonomic group that contains only one immediately subordinate extant taxon. In the case of genera, the term "unispecific" or "mon
The cuckoo-roller is the sole member of its genus, family, and order.
In the order Amborellales, there is only one family, Amborellaceae, and there is only one genus, Amborella, and in this genus there is only one species, Amborella trichopoda.
Beluga "kissing" a human trainer; both are monotypical in their genera.
The family Cephalotaceae has only one genus, Cephalotus, which contains only one species, Cephalotus follicularis, the Australian pitcher plant.