Friday mystery object #213 answer


Last week I gave you this interestingly shaped piece of bone to identify:

mystery213

Jake, Elisa, henstridgesj, Hew Morrison, Robin Birrrdegg, Daniel Jones and Daniel Calleri all made a correct identification of this being part of a sternum, a sternebrae or more specifically a manubrium from a fairly large (yet possibly juvenile) ungulate. This was all correct and the final piece of the puzzle is the species, which is actually a smaller Deer than most people were expecting. It’s from an immature male Fallow Deer Dama dama (Linnaeus, 1758) collected from Knowle Park in Kent.

Here’s what it looks like with the rest of the sternebrae (which are the individual elements of bone that make up the sternum, like vertebrae make up the spine) that I could find for the specimen:

Sternum of immature male Fallow Deer Dama dama

Sternum of immature male Fallow Deer Dama dama

So it was indeed the manubrium – the top sternebra which in humans articulates with the top ribs and clavicles, but which here would only articulate with the top ribs, because ungulates don’t have clavicles (as I’ve discussed before). Here’s a human sternum for comparison:

Human sternum

Human sternum

So well done to everyone – I hope you enjoyed the challenge!

 

Share your thoughts

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s