Field Station: Dinosaurs, a 20-acre outdoor educational theme park in Secaucus, N.J., whose tagline is "9 minutes from Manhattan, 90 million years back in time," officially opened to the public during Memorial Day weekend.

Founder and executive producer Guy Gsell keeps a few steps ahead of T. rex.

Photograph by Brian Finke for Bloomberg Businessweek

Field Station: Dinosaurs, a 20-acre outdoor educational theme park in Secaucus, N.J., whose tagline is "9 minutes from Manhattan, 90 million years back in time," officially opened to the public during Memorial Day weekend.

Founder and executive producer Guy Gsell keeps a few steps ahead of T. rex.

Photograph by Brian Finke for Bloomberg Businessweek

New Jersey's Lost World

Field Station: Dinosaurs, a 20-acre outdoor educational theme park in Secaucus, N.J., whose tagline is "9 minutes from Manhattan, 90 million years back in time," officially opened to the public during Memorial Day weekend.

Founder and executive producer Guy Gsell keeps a few steps ahead of T. rex.

Photograph by Brian Finke for Bloomberg Businessweek

Patrons pass by the park's "carnivorous" Baryonyx.

Photograph by Brian Finke for Bloomberg Businessweek

A young park visitor faces off with Ankylosaurus.

Photograph by Brian Finke for Bloomberg Businessweek

Tyrannosaurus rex, one of 31 animatronic dinosaurs on display.

Photograph by Brian Finke for Bloomberg Businessweek

Young visitors check out the Stegosaurus.

Photograph by Brian Finke for Bloomberg Businessweek

Getting up close and personal with Baryonyx.

Photograph by Brian Finke for Bloomberg Businessweek

A visitor reaches out to touch Ankylosaurus.

Photograph by Brian Finke for Bloomberg Businessweek

The festive garb of Field Station employee Jeff DeSmedt (aka the Dinosaur Troubadour), who performs dino-themed kids songs.

Photograph by Brian Finke for Bloomberg Businessweek

A photo op with Dryptosaurus.

Photograph by Brian Finke for Bloomberg Businessweek

Where else can you get the chance to pet a Stegosaurus?

Photograph by Brian Finke for Bloomberg Businessweek

A Pteranodon hovers over visitors at Field Station: Dinosaurs.

Photograph by Brian Finke for Bloomberg Businessweek

One of Field Station: Dinosaurs's highlights is the 90-foot-long Argentinosaurus, the world's largest animatronic dinosaur.

Photograph by Brian Finke for Bloomberg Businessweek