Original file (2,830 × 3,103 pixels, file size: 6.18 MB, MIME type: image/jpeg)
Summary
| Description |
English: Anchisauripus tuberosus HItchcock, 1836 - dinosaur footprint from the Jurassic of the Connecticut River Valley, USA.
The dinosaur that produced the footprint shown here was a theropod, a group of medium-sized to very large, bipedal, carnivorous (predatory) dinosaurs. The rock itself is from the Newark Supergroup, a thick, geographically-widespread stratigraphic unit in eastern USA. It is Late Triassic to Early Jurassic in age and represents sediments and some lava flows that filled up old rift valleys that roughly parallel the Eastern Seaboard of America. The rift basins formed in the Triassic when the ancient Pangaea supercontinent attempted to break apart, but failed. A successful breakup of Pangaea occurred during the Jurassic. Most of the basin-filling rocks are terrestrial redbeds - hematite-rich siliciclastic sedimentary rocks, such as conglomerate, sandstone, siltstone, and shale, deposited in nonmarine environments. Stratigraphy: Newark Supergroup, Lower Jurassic Locality: unrecorded/undisclosed site in the Connecticut River Valley, USA For more info., see: en.wikipedia.org/wiki/Newark_Supergroup |
| Date | |
| Source | https://www.flickr.com/photos/jsjgeology/28500427117/ |
| Author | James St. John |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 12:55, 13 July 2018 | | 2,830 × 3,103 (6.18 MB) | FunkMonk | User created page with UploadWizard |
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