Australosphenida
| Use attributes for filter ! | |
| Scientific name | Australosphenida |
|---|---|
| Phylum | Chordata |
| Rank | Infraclass |
| Infraclass | Australosphenida; Luo, Cifelli, & Kielan-Jaworowska, 2001 |
| Subclass | Yinotheria |
| Higher classification | Yinotheria |
| Date of Reg. | |
| Date of Upd. | |
| ID | 3050756 |
About Australosphenida
The Australosphenida are a proposed infraclass of mammals within subclass Yinotheria. Today, there are only five surviving species, which live in Australia and New Guinea, but fossils have been found in Madagascar and Argentina. The surviving species consist of the platypus and four species of echidna.