look in USDA invasive species list they have it listed as siberian elm, or commonly called chinese elm : ulmus pumila, also most nurserymen sell siberian elms as chinese elms. (really they do)
in the manual of woody landscape plants it gives a choice Ulmus parvifolia and Ulmus pumila.
Should I tell you the tree had fruit when we took it down?
Iknow the bark looks rough for a chinese elm, but the upper parts ( inside the truck) it smooths out.
and the leaf structure more closely resembles Ulmus parvifolia. and on another note, this was a nice tree, not all broke up, most of the siberian elms here get wind damaged and tore up in our harsh winters. these factors lead me more towards a chinese.
BUT I HAVE BEEN WRONG BEFORE............