Tuesday, November 11, 2008

What is it?


Yes, another round of 'what is it?' I'm off on leave for a week. I hope I can post something in the during this time but in case I don't have a go at guessing the identity of this osteal orifice. Clue: it has nothing to do with any sort of sauropodomorph (for once). Oh the scale bar represents 2 cm.

6 comments:

Dinorider d'Andoandor said...

It looks like one of those potholes aka "Fake Dinosaur Dance Floor"

Matt said...

Pineal foramen?

220mya said...

The orbit of a dinocephalian - perhaps Moschops or a related form?

rutgerjansma said...

I'm thinking it is somesort of puncture. A penetration of the bone through either a bite or infection.

Laelaps said...

It's a dinosaur dance floor! Oh wait...

Qilongia said...

The aperture appears to be surrounded by a raised rim with regular segmentation of that rim, and this reminds me of the coossified scleral ossicles in ankylosaurs and ceratopsians. The apperture is less than an inach across, which makes me wonder if it really is an orbit, but from the appearance and the rough texture around it to the smooth region in the upper left, I am guessing this is an ankylosaurian (nodosaurid?) skull, rotated so that the maxillary margin is facing to the upper left. It's just a casual guess.