3D architecture of medullary bone in extinct and extant Avemetatarsalia: test...

Medullary bone (MB) is a female-specific tissue used to form the eggshell in extant birds and hypothesized to have originated within extinct Avemetatarsalia. The identification...髓质骨（Medullary bone, MB）为现生鸟类雌性特异性组织，用于构建蛋壳，且被推测起源于已灭绝的鸟跖类（Avemetatarsalia）。其鉴定……