Dinosaur Tracks

My husband called me at work today. After exchanging the usual greetings - what the cats have done today, what the cats are currently doing, what I've accomplished (briefly) at work (sometimes summarized as "workin' hard honey?" "yep") my husband told me that there were dinosaur footprints in our back yard. When I came home I dutifully looked at the footprints, agreed that they were strange looking, and took pictures.

Need some help seeing what he was talking about?

They do look somewhat suspicious...