"But the dinosaurs DID die out in the flood"
I guess they forget that many of the dinosaurs lived in water to start with.
Notice how the WTS gives a "scriptural" answer after they say there is none. Also there is no scientific answer, just the typical WTS speculation.
*** w73 7/15 p. 447 Questions from Readers ***When did God create dinosaurs, and when did they become extinct?—U.S.A.The Bible does not provide specific answers to this question. According to the Genesis account, animals were created during the fifth and sixth creative periods or ‘days.’ If the Hebrew expression translated "great sea monsters" [Hebrew, tan·ni·nim´] includes dinosaurs, which often inhabited swampy, watery areas, this would mean that dinosaurs were created on the fifth "day." (Gen. 1:21) We do not know whether they continued to exist until man was created (toward the close of the sixth "day"). At the very latest it seems likely that they must have disappeared off the earth at the time of the flood of Noah’s day. Dinosaurs were reptiles, and some kinds of dinosaurs bear strong resemblance structurally and otherwise to lizards (sauros is, in fact, the Greek word for "lizard"; saura in Leviticus 11:29, LXX). Not all types of dinosaurs were of such gigantic size. Hence, even if they had survived till the Flood, this would not have required taking pairs of the mammoth varieties into the ark. Other smaller members of the particular family or "kind" to which these belonged would have sufficed to fulfill the divine command.—Gen. 6:19, 20; 7:14.
As to the bones being put there to fool people the WTS says this trying to distance themselves from creationism. Of course, the WTS believes that life began only 48,000 years ago (just a few thousand years ago).
g83 3/8 pp. 14-15 Creationism—Is It Scientific? ***
How can creationists reconcile such evidence with their dogma that everything started just a few thousand years ago? When God created the rocks with uranium in them, did he also put in the right amount of the special isotopes of lead that would make them look a billion years old? When he made the Andromeda galaxy, did he also fill the path to the earth with light waves, all along its 10 thousand million billion (10,000,000,000,000,000,000) miles, so we would not have to wait to see it in the sky? Would the God of truth purposely insert such illusions in his creation just to deceive us?
Such reasoning reminds one of the story told of the little old Fundamentalist lady who was being shown through the Dinosaur National Monument in Utah. She did not believe the park ranger’s speech about the huge reptiles that had once lived there and whose fossilized bones she was seeing. She offered another explanation for them: "The Lord put them there to fool you."
Speaking of dinosaurs, where do they fit into the creationists’ scheme of things? In their view, human beings and dinosaurs and every other kind of animal, extinct or extant, lived on earth at the same time before the Flood. They were all swept away together in a grand mélange by the Floodwaters. How, then, do they account for the orderly sequence of fossils in sedimentary rocks, starting with simple forms of life in the lower strata and followed by increasingly diverse and complex creatures in higher strata? They can only offer a set of implausible and contradictory theories as to how all kinds of plants and animals could have been sorted out of the potpourri of carcasses and laid down in separate layers.
And what is the WTS trying to infer in this paragraph?
Creator book chap. 6 p. 92 An Ancient Creation Record—Can You Trust It? ***
The first chapter of the Bible gives partial details of some vital steps that God took to prepare the earth for human enjoyment. The chapter does not give every detail; as we read it, we should not be put off if it omits particulars that ancient readers could not have comprehended anyway. For example, in writing that chapter, Moses did not report the function of microscopic algae or bacteria. Such forms of life first came into human view after the invention of the microscope, in the 16th century. Nor did Moses specifically report on dinosaurs, whose existence was deduced from fossils in the 19th century. Instead, Moses was inspired to use words that could be understood by people of his day—but words that were accurate in all they said about earth’s creation.
And once again the WTS speculates:
g90 2/8 p. 11 What Happened to the Dinosaurs? ***Some dinosaurs (and pterosaurs) may indeed have been created in the fifth era listed in Genesis, when the Bible says that God made "flying creatures" and "great sea monsters." Perhaps other types of dinosaurs were created in the sixth epoch. The vast array of dinosaurs with their huge appetites would have been appropriate considering the abundant vegetation that evidently existed in their time.—Genesis 1:20-24.
When the dinosaurs had fulfilled their purpose, God ended their life. But the Bible is silent on how he did that or when. We can be sure that dinosaurs were created by Jehovah for a purpose, even if we do not fully understand that purpose at this time.