The other night I watched a movie of the midnight drive in variety "The Black Scorpion". Basic plot is volcano explodes releasing huge scorpions that run amok terrorizing local Mexican natives. One scene where a scorpion reaches up and grabs a train (running on silver rails with a mysterious center rail) on an obscure short line with "Lionel Lines" painted on its tender. It proceeds to demolish the passenger cars and presumably passengers (yummy!).
The special effects were hokey (its 1959 of course) but at least the train got my attention (sorry could not see the engine number)......