noun
Toyotamaphimeia machikanensis
A fossil species of crocodilian discovered in Japan. The name is a proper noun and is typically used in paleontological contexts.
マチカネワニは、大阪大学の待兼山で発見された化石ワニです。
Machikanewani is a fossil crocodilian discovered at Machikane Hill at Osaka University.
Named after the Machikane Hill (待兼山) in Osaka where the fossil was discovered, combined with ワニ (crocodilian). The kanji 待兼鰐 is an ateji spelling.