Two weeks ago, during our second week of The Science of Skeletons, I covered the osteological estimation of sex and bioarchaeological approaches to reconstructing gender in the past. Unsurprisingly, that was the week I started to see ossa coxae everywhere I looked.
First, while walking the canine domesticate I was dog-sitting, I noticed these seed pods (I think they may be maple, but I would like a botanist to confirm as I rarely deal with recently living things). To my eye, they looked like narrow and elongated chimpanzee innominates:
The resemblance even held when they were “articulated”; however, the articulated pelvis that they form is so wide that a graduate colleague of mine remarked on its resemblance to earlier hominin pelves (like the Gona pelvis, the Homo erectus specimen shown below):
Then, I found a giant innominate in a patch in the sidewalk pavement. Some of the features are a little distorted, but overall the resemblance is pretty clear:
I’ve clearly got bones on the brain, as is also evidenced by the fact that this is just the first of a series of upcoming Osteology Everywhere posts, so if you’re waiting with bated breath for the next installment….well, I’ll let Ray Arnold say it for me.
P.S. I also just discovered that the “Remove Background” tool exists in the figure editing panel in PowerPoint. This is a BIG DEAL. Look forward to lots more examples of floating bones in the near future.
UPDATE: My pedantic and bony pelvis-obsessed colleague Caroline VanSickle informs me that the correct latin plural for os coxae is ossa coxae, a distinction I never fail to forget (I always remember that the plural is atypical, but I also always forget its exact nature. This is why I prefer the term innominates). Also, the helicopter seed pods are maple. Good job everyone!
Image Credits: Original figure of innominate from Gray’s, here. Original chimpanzee ilium (P. troglodytes) found here. Gona pelvis found here.
I thought it was powerpoint you were using for the photographs/slides! Looks great! I’m looking forward to more of these posts.
Thanks David! I’m almost coming to the end of my teaching semester, so things should pick back up shortly.
LikeLiked by 1 person
Pingback: Bone Broke Year in Review 2015 | Bone Broke