Slocum and the Bone Robbers — Jake Logan

Slocum's in the middle of a blood feud -- over bones.

For three squares a day, Slocum's putting his shooting skills to use guarding cattle on the Triple Cross Ranch. His other talents are being spent on a certain buxom beauty from back East, who has some strange ideas about how to keep Slocum entertained…
 
Seems her boss -- a lily-livered bone-doctor -- has set his sights on some nearby dinosaur fossils. Problem is, his colleague has staked his claim to the find. And unless Slocum can finagle some kind of bone-a-fide deal, these Yanks will drive each other into extinction…