Re: New name for Megalosaurus hesperis

[David Marjanovic <david.marjanovic@gmx.at>]

Wow. Roger gave a talk about (among other things) its phylogenetic position 
at the EAVP* congress in July, and had an SVP meeting poster about it, but 
never mentioned he had a redescription in press... He did mention it's the 
oldest certain tetanuran at present (Bajocian -- second of the four stages 
of the Middle Jurassic).

* European Association of Vertebrate Palaeontology.

> _Dino_

Now that's just cruel.

> the maxillary 'fenestra' is present but takes the form of an imperforate 
> fossa (a spinosauroid synapomorphy); and the paradental groove is wide 
> anteriorly, defining a distinct gap between the interdental plates and the 
> medial wall of the dentary (a synapomorphy of Spinosauridae + 
> Megalosauridae).

I'll post the SVP meeting abstract about the new phylogeny of Tetanurae 
tomorrow.