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:
It looks like one of those potholes aka "Fake Dinosaur Dance Floor"
Pineal foramen?
The orbit of a dinocephalian - perhaps Moschops or a related form?
I'm thinking it is somesort of puncture. A penetration of the bone through either a bite or infection.
It's a dinosaur dance floor! Oh wait...
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.
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