Sticking with a theme, there is not much to tell from the field as of yet, though today we got to look over the as yet largely unexploited dinosaur site at Las Aguilas, near Salltio. This has a series of footprints of sauropods, theropods and large ornithopods and even though we were limited to looking at scraps and broken peices on the surface, it was enough to identify sauropods, two different theropods and a large ornithopod. Not bad when you consider the state of the material and the amount of time we had. One obviously hopes that under the slopes and hills there are plenty more peices that have yet to weather and break. One remarkable feature of the material was how good the condition was even for the badly broken bits that suggests the original might be superb, one can only hope. Further exploration and exploitation is planned here, but as ever we are reliant on funds and permits. Still, the prospects are good.
Photos to follow.
A nice overview of the terrain, lots of spiky plants as I found to my cost.
Las Aguilas
A theropod trackway (moving left to right, the middle toe has largely worn away which is a shame). Hammer courtesy Dino Frey.
Not quite a roadrunner track
Various bits of longbone. These have been stacked together by locals and do not represent a single broken peice unfortunately. Still, there are chunks and distal ends of bones that suggest longbones (especially femora and tibia) in excess of 1m, so there were clearly plenty of big animals around. And soem small ones two, I found a pice of theropod pubis that probably came from an ainmal of only around 2m in length, and as it was fused up, must have represented an adult which is nice.
Collected bone bits
Dave Hone's Archosaur Musings 
Ah, a host of prickly pears or Opuntia (at ankle level) and those tree-thingies look like Yucca brevifolia, the Joshua tree, although I’m not sure the precise species is found outside of the Mojave desert.
The recommended response to being spiked by an Agave or similar is to drink loads of tequila in revenge.
Yes, there is much spikyness around. In a couple of days I’ll be putting up a post on the local museum which includes their cactus reserve – the biggest collection of thorns you will ever see!
What time period are these guys from roughly?
I know only a bit about Mexican Dinos, and it’s all about their late Cretaceous era material. Is this more of that (roughly 75-70 million years ago) or earlier?
Looks like a fun prospecting ground though.
Again good luck hunting!
Yes, this site is specifically Campanian in age and therfore right in the bracket you gave. The next day were were at the Cretaceous / Jurassic boundary, and are moving onto other sites later. There is quite a mix of stuff here (in terms of time) but for actual dinosaur beds, I don’t know how much there is outside of the Late Cretaceous (of varying times) stuff.