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Sedimentology and ichnology of the Mafube dinosaur track site (Lower Jurassic, eastern Free State, South Africa): a report on footprint preservation and palaeoenvironment [PeerJ]
- R. Johnson
- Environmental Science
- 2016
Compilation Geologic Map from the Baboquivari Mountains to the Transition Zone of the Colorado Plateau
- Arca, R. Johnson
- Geology
- 1 March 2010
A compilation map showing structural terrane from the Baboquivari Mountains to the Transition Zone of the Colorado Plateau. One geologic map sheet and one sheet with cross sections.
How #dinosaurs are brought back to life--through art | @john_pickrell @NatGeo | #paleoart
- R. Johnson
- Art
- 2018
Relearning The #Star Stories Of #Indigenous Peoples | @SciFri | #astronomy #stories
- R. Johnson
- Physics
- 2019
Palaeoart Memes and the Unspoken Status Quo in Palaeontological Popularization | by @TetZoo | #PopPalaeo
- R. Johnson
- Environmental Science
- 2017
Washington Gap Project Mammal Distribution Models
- R. Johnson
- Environmental Science
- 1991
Mammal distribution models for Washington State were created as part of the Washington State Gap Analysis Project (WAGAP). WAGAP is part of the national Gap Analysis Project, funded by the US…
Eruptions, Earthquakes & Emissions | Smithsonian Global Volcanism Program | #tectonics #animation
- R. Johnson
- Geology
- 2016
To Scale: The Solar System | #SolarSystem #scale #video
- R. Johnson
- Physics
- 2015
Just how big is the Solar System in which we reside?
This 7 minute film by Wylie Overstreet and Alex Gorosh will put it in perspective.
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