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Gallery: Reconstructed Dinosaur 'Chase'

Dinosaur Tracks

dinosaur track reconstruction

(Image credit: Peter Falkingham)

A 3D reconstruction of a dinosaur trackway from Texas shows a sauropod followed by a theropod -- though it's not clear that the theropod was really right on the first dinosaur's tail.

Dinosaur Track Maps

reconstruction and dinosaur track maps

(Image credit: PLOS ONE)

Fossil collector Roland T. Bird excavated much of the trackway in 1940, and sections were sent to the American Museum of Natural History and the Texas Memorial Museum. Other sections were lost. Now, researchers have reconstructed the trackway from Bird's photographs. Here, the reconstruction lines up with Bird's hand-drawn maps.

Track Depth

photo of track sites

(Image credit: Peter Falkingham)

Old photographs of the track site were analyzed using a method called photogrammetry, which allows researchers to create 3D images with depth from 2D pictures.

Paluxy River Tracks

maps of dinosaur tracks

(Image credit: PLOS ONE)

Original hand-drawn maps of the tracks, which were found near the Paluxy River in central Texas.

Track Reconstruction

dinosaur tracks reconstructed

(Image credit: Falkingham PL, Bates KT, Farlow JO (2014) Historical Photogrammetry: Bird's Paluxy River Dinosaur Chase Sequence Digitally Reconstructed as It Was prior to Excavation 70 Years Ago. PLoS ONE 9(4): e93247. doi:10.1371/journal.pone.0093247)

Black-and-white and color reconstructions of the trackway, which shows the prints of a sauropod and theropod.

Single Trackway

dinosaur tracks Paluxy

(Image credit: Peter Falkingham)

An isolated view of the dinosaur trackway from the Paluxy River site.