Creationist Xeno's Paradox

Creationists often argue that there are no "transitional forms" between fossils, or between fossils and living species. This is a dishonest argument because it depends on a "Xeno's Paradox" problem. Imagine:

•  Scientist: "Fossil A is the remains of an ancestor of Living Creature Z."
• Creationists argue "Hey there's no fossil record of anything between A and Z".
• Scientist: "Look I discovered Fossil J, midway between A and Z!"
• Creationist: "Hey there's no fossil record of anything between A and J". 
• Scientist: "Look I discovered Fossil D, midway between A and J!" 
• Creationist: "Hey there's no fossil record of anything between A and D".
• Scientist: "Look I discovered Fossil B, midway between A and D!" 
• Creationist: "Hey there's no fossil record of anything between A and B". 
• Scientist "LOL",

There's really no need to go into more detail as to why Creationists are wrong on this.