The point is moot, regardless.
Sauropods don't have tails like cedars, they have tails like whips.
They also cannot fit under a shade tree, cool off in the reeds, sink down in the creek, or drink up the Jordan river with their mouth...
Job 40:15-24 King James Version
15 Behold now behemoth, which I made with thee; he eateth grass as an ox. 16 Lo now, his strength is in his loins, and his force is in the navel of his belly. 17 He moveth his tail like a cedar: the sinews of his stones are wrapped together. 18 His bones are as strong pieces of brass; his bones are like bars of iron. 19 He is the chief of the ways of God: he that made him can make his sword to approach unto him. 20 Surely the mountains bring him forth food, where all the beasts of the field play. 21 He lieth under the shady trees, in the covert of the reed, and fens. 22 The shady trees cover him with their shadow; the willows of the brook compass him about. 23 Behold, he drinketh up a river, and hasteth not: he trusteth that he can draw up Jordan into his mouth. 24 He taketh it with his eyes: his nose pierceth through snares.
The animal written about in Job is an embellished, poetic description of a Hippopotamus or Rhinoceros, depending on how you read that last line about his nose piercing snares...
They kill people today in every culture that deals with them and they both have been known to scare all people who live near where they are located throughout history. Given that the Hippo would be more of an issue for people who live near water, and until just recently all major human settlements were near flowing bodies of water, it's quite obviously a hippo. The fact either of them would show up in Mesopotamian mythology is not surprising.
So let's just move on from this attempt to relate Behemoth to a dinosaur. Creationists with any experience or credibility have already let this one go.