I think what you have is a chrysalis of a tomato worm. Check out this link.
http://www.whatsthatbug.com/tomato.html
I think you’re right Gummi Bear, it’s most likely a Tomato Hornworm. It does look just like the pictures on the site you linked, even if wideminded’s are just “little guys” in comparison to the specimen they are showing. It even has the smooth part, and then the twisted “cone” part at the end. They even mentioned that the woman sending the pictures in found them IN the ground - and the info. says they emerge from the ground as moths, lay their eggs, and do it all over again! LOL
Wideminded, do you have a garden in the area you were digging?
And, check out the picture of the caterpillar it comes from - ever seen these strange looking guys out in your yard? They are kinda spooky looking, IMHO! O.o