Re: 190 million year old mammal footprints found

["K and T Dykes" <ktdykes@arcor.de>]

There's one mammal or near-mammal Lower Jurassic ichnogenus from Brazil, if 
I remember correctly, but I've forgotten the name!

South Africa's Elliot Formation has an ichnogenus called /Ameghinichnus/. 
That one's been accused of having been made by a non-mammalian 
tritylodontid.

I think that Arizona's Kayenta Formation manages possible trity burrows but 
again, neither my memory or my conveniently available notes can confirm 
that.

----- Original Message ----- 
From: "Dora Smith" <villandra@austin.rr.com>
To: <xrciseguy@q.com>
Cc: "Dinosaur List" <dinosaur@usc.edu>
Sent: Friday, July 24, 2009 3:56 PM
Subject: Re: 190 million year old mammal footprints found


> I wonder how new this news is.  On one of the Discovery Channel series, may 
> not be the one about dinosaurs and could be the one about protomammals that 
> is part of a miniseries, it discusses tiny mammal-like reptiles who 
> burrowed far beneath the surface to where there were roots and other 
> moisture, and they survived the terrible long drought that killed most of 
> the larger and more advanced animals that lived on the surface.  It sounded 
> as if they knew what and where these creatures were, and how they lived.
>
> My guess is they also weren't the brainiest twigs on the protomammalian 
> family tree.  They didn't need to be anything like as smart as a 
> crocodile. In fact, my small dinosaurs are laughing at this explanation of 
> how mammals ended up with big brains full of empty space.
>
> Yours,
> Dora Smith
> Austin, TX
> tiggernut24@yahoo.com
>
> ----- Original Message ----- 
> From: "GUY LEAHY" <xrciseguy@q.com>
> To: "Dinosaur Mailing List" <dinosaur@usc.edu>
> Sent: Friday, July 24, 2009 12:46 AM
> Subject: 190 million year old mammal footprints found
>
>
> > Non-dinosaurian, but still very cool:
> >
> > http://www.chicagotribune.com/news/chi-mammals_tabjul24,0,5441814.story
> >
> > Guy Leahy