Documents Early Ontogeny

Museum fu¨r Naturkunde, Institut fu¨r Systematische Zoologie, Berlin, Germany Early ontogeny and placentation of the grey short-tailed opossum, Monodelphis domestica (Didelphidae:…

Documents Reptile Derivatives

Reptile Derivatives Birds and mammals Archaeopteryx = âfirstâ bird Reptilian features teeth, tail, pelvis â no sternum skull features Avian (bird) features feathers, longer…

Documents Reptile Derivatives

Reptile Derivatives Birds and mammals Archaeopteryx = âfirstâ bird Reptilian features teeth, tail, pelvis â no sternum skull features Avian (bird) features feathers, longer…