Ben Creisler
Some recent items:
Fossil Friday Roundup: April 19, 2019
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Local teen to present dinosaur track study at DSU Undergraduate Research Symposium, including possible sauropodomorph from Early Jurassic
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The Symposium abstracts are here (only two dinosaur related items)
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Conner Bennett, Andrew R.C. Milner, Dr. Jerry D. HarrisÂ
"Documenting the Andreâs Alcove Dinosaur Tracksite: Oases in an early Jurassic Desert"
Abstract: The Andreâs Alcove Dinosaur Tracksite (AADT) is located on the western side of Lake Powell, within Glen Canyon National Recreational Area (GCNRA). The tracksite is within the Lower Jurassic Navajo Sandstone. A team composed of employees from the St. George Dinosaur Discovery Site at Johnson Farm (SGDS), members of the National Parks Service (NPS), and several volunteers. Documented tracks at the AADT, including Anomepus, Grallator, Eubrontes, Batrachopus, and a potentially new track type that somewhat resembles a basal sauropodomorph track. Tracks at the AADT occur on three distinct track horizons. Data collection methods at the AADT included photogrammetry, track and trackway orientations and measurements, photographic documentation of individual footprints, and replication of some of the more important tracks. Photogrammetry provides an enhanced view of the track surfaces in three-dimensions, enabling additional data analysis in the SGDS lab. Future fieldwork at the AADT will include: (1) detailed documentation of newly discovered and associated track surfaces farther to the north of the AADT; and (2) measuring a detailed stratigraphic section from the upper part of the Kayenta Formation, to additional track-bearing, lithologically similar carbonate-rich playa deposits higher in the Navajo Sandstone. Near the AADT, several carbonate-rich sandstones with similar lithologies were recognized, that likely represent small ponds, interdune playas formed due to rising water tables during wet seasons during Navajo Sandstone time. These Early Jurassic oases were frequented by small to mediumsized theropod dinosaurs, small ornithischian dinosaurs, crocodylomorphs, and possibly basal sauropodomorph dinosaurs.
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Japanese high school student finds fossil tooth of tyrannosaur family species in Kuji, Iwate Prefecture, northeastern Japan
In Japanese with photos:
(click on image for photos of tooth)
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Free Range Dinosaurs On "Big Picture Science"
interview with Ken Lacovara
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Educational graphic novel about dwarf sauropod Europasaurus and its Jurassic island ecosystem to be producedÂÂby German paleontologist Oliver Wings, paleoartist Joschua KnÃppe, and media designer Henning Ahlers, with funding from the Volkswagen Foundation (with sample artwork) (in German)
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The Natural History Museum of Los Angeles County Explores When Dinosaurs Ruled Antarctica
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Story posted already in Spanish, now in English:
Scientists unearth 220 million-year-old dinosaur fossils in Argentina
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Dinosaurs and other Mesozoic fossils from places in Inner Mongolia in China (in Chinese)
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Fearsome ancient carnivore discovered after fossil lingered for decades in museum drawer
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42,000-Year-Old Foal Entombed in Ice Still Had Liquid Blood in Its Veins
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Study: Infamous 'death roll' almost universal among crocodile species
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Fossil of first known perching bird found
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Dino-Easter stories
How dinosaur colored their eggs (in German)
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Giant egg