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.
Monitos del monte or less frequently colocolo opossums, are marsupials native only to south-western South America in the genus Dromiciops. It is the only extant genus in the ancient order Microbiother
Monotypic taxon
…The water lily species Euryale ferox is the sole extant member of the monotypic genus Euryale. The monito del monte is the only extant member of the order Microbiotheria. The platypus is the only member of the monotypic genus Ornithorhynchus and the family…
A monito del monte in state of torpor.