[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Subject Index][Author Index]

Re: The composition of the semilunate carpal



 
In Alxasaurus the semilunate carpal is represented by two unfused elements. However, in birds the semilunate carpal is a single bone throughout the development. How can this be?
The bones simply "fuse" before they even ossify. This happens in the sterna of e. g. humans and birds (the latter consists of 2 elements, the former of at least 3).