That is what I have always assumed. I would have assumed either some eggs or little dinos were on board. If need be, I could have argued the position fairly well, as well. For example if we look at the other ark, the ark of the covenant, we see there were some things in there. like Aaron's rod. Yet the ark was little, just what was it, three feet long or something? How could a grown man's staff be in there? I guess we could say it was a shrimpy little thing, maybe. On the other hand this was a spiritual little box with amazing powers, and maybe betond space and time itsef inside. This means that basically anything may have been able to fit in there?! All we do is apply that to the other ark, and bring on the dinos!!!
But my present tact is that the past itself was very different, merged with the spiritual. This allows for very fast layers being formed, what, with trees that grow in three days, and all. So I can put the flood anywhere, or almost nowhere, in the fossil record, like way up near the top if I like. This means that all those dinos may have been pre flood, why squish em in the ark for nothing?