Dude, Jurassic Park
came out two years before
was based on a book
had a 100
% different plot
had a 100% different setting
I admit, it's obvious the FX dudes were clearly thinking Jurassic Park T-Rex when they did the helicopter chase, but aside from that the two movies have nothing in common. Plot device-wise, the baby G's were more like zombies (minus the infection angle) when you got down to it.
And how, pray tell, is the movie crappy? Disregarding the bad rep from kaiju nuts and the tenuous JP aping, it's basically a fun Independence Day disaster movie kinda deal - threadbare plot, cool special effects, and shallow-yet-likeable characters (well, not as many as ID4, but you catch my drift).