Translation guide
This is a technical paleontological term referring to a taxonomic rank (order) of mammals that no longer exists. In Japanese, it is expressed using specific scientific vocabulary.
The taxonomic rank 'order' for an extinct group of mammals, used in biology and paleontology.
Standard scientific phrase meaning 'extinct order of mammals'. Uses 絶滅した (extinct) + 哺乳類 (mammals) + の + 目 (order).
This extinct order of mammals disappeared about 65 million years ago.
Literally 'fossil mammal order', often used when the group is known only from fossils. Implies extinction.
Abbreviated term 'extinct order', used in some taxonomic contexts. Less common than the full phrase.
In biological classification, 目 (もく) is the standard term for 'order'. It is used for both extant and extinct groups. When specifying extinction, add 絶滅した (ぜつめつした) before the group name.
The order Condylarthra, a fossil mammal order, exhibits diverse morphologies.
This extinct order died out at the end of the Cretaceous.
Extinct orders of mammals include Multituberculata and others.