It was a Saturday morning t.v. show from the 70's about a father, son, and daughter that got lost and traveled through a time zone while on a nature trip. There were dinasaurs (Alice,Grumpy----- the 2 t-rex's that were always chasing them and sometimes nearly making a meal out of them). Funky looking little monkeys that could talk like cavemen (Ta, sa, and Chaka), and the sleestack, whose leader was Enoch. I loved that show.