The Bible is not 100% accurate in the details, especially when translated, but if you are going to get hung up on things like that, you've missed the point.
Besides, if you really, really want dinosaurs, they might have been leviathans.
Bodhrans as such may not be mentioned, but you have tabrets, timbrels and cymbals. Some of which would definetly be frame drums.
A day was not always 24 hours, and it can also reffer to a period of time. We even do it now, how many times have you heard people going "well back in the day" or "they were good in their day" etc.