ブラウザの設定でJava Scriptの使用を有効にしてご利用ください。
出典:Wikipedia
出典:『Wikipedia』 (2011/02/07 20:39 UTC 版)
Micraster is an extinct genus of echinoid from the Late Cretaceous. Its remains have been found in Africa, Antarctica, Europe, and North America.
Micraster