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）是现生鸟类雌性特有的、用于形成蛋壳的组织，学界推测其起源于已灭绝的鸟跖类（Avemetatarsalia）类群。该组织的鉴定……