Episode 521: Kelsie Abrams from the Burke Museum. From digging up dinosaur bones to making ready fossils, Kelsie Abrams is concerned with fossils from the sphere to the museum show. She additionally shares her distinctive perspective as a paleontologist with a background in archaeology.
Interview:
Kelsie Abrams, the paleontology fossil lab supervisor on the Burke Museum of Pure Historical past and Tradition in Seattle, Washington. Comply with her on Instagram @pinup_paleontologist
Sponsors:
The dinosaur of the day: Uteodon
- Iguanodontian dinosaur that lived within the Late Jurassic in what’s now Utah, U.S. (Morrison Formation)
- Seemed much like Camptosaurus
- Had a rounded again, cumbersome physique, walked on two legs, had an extended tail
- Had an extended head and quick arms
- Might stroll on all fours or two legs
- Had fused wrists
- Estimated to develop as much as 20 ft (6 m) lengthy and weigh as much as 880 lb (400 kg)
- Though one smaller estimate is it was solely just a little over 8 ft (2.5 m) lengthy
- Kind species is Uteodon aphanoecetes
- Holotype (CM 11337) is a partial skeleton
- Genus identify means “Ute tooth” (named for indigenous folks of Utah and Colorado)
- Species identify means “hidden in plain web site”
- Named in 2011 by Andrew McDonald
- Some debate over its classification
- Initially O.C. Marsh assigned the specimen to Camptosaurus medius in 1894, and Charles Gilmore confirmed in 1925
- A partial skeleton was present in 1923 at Dinosaur Nationwide Monument, which Gilmore briefly described in 1925 and referred to Camptosaurus medius
- In 1925, Gilmore wrote that the skeleton was in a big block of sandstone and the limb and hip bones have been “kind of disarranged”
- Gilmore additionally wrote: “In revising the genus in 1909, C. medius was retained as a legitimate species and an try was made to characterize it. Owing to the unprepared state of the better portion of the sort supplies, which have been studied at the moment, the outcomes obtained have been removed from passable”
- In 1980, Camptosaurus medius was synonymized with Camptosaurus dispar
- In 2008, Carpenter and Wilson absolutely described the skeleton Gilmore had described and designated it the holotype of Camptosaurus aphanoecetes, they usually referred all specimens of Camptosaurus present in Dinosaur Nationwide Monument to this species (they have been all discovered between 1909 and 1923)
- This included a braincase
- In 2011, MacDonald discovered sufficient variations to rename it Uteodon
- MacDonald referred all these fossils to Uteodon in 2011, based mostly on a novel characteristic in a braincase (a chunk protruding additional within the again)
- Different fossils included a part of a proper leg and foot
- Different bones have been present in a block, as a mixture of bones from a pair Camarasaurus and an ornithopod. The braincase was in that blend, whereas the suitable hindlimb was from a special set of bones discovered
- In 2015 Carpenter and Lamanna argued that the braincase and the suitable hindlimb weren’t from the identical particular person and located the braincase to truly be Dryosaurus (a Late Jurassic ornithopod)
- Based mostly on the remaining fossils (the hindlimb in addition to a partial skeleton and the specimens present in Dinosaur Nationwide Monument), discovered that Uteodon was the identical as Camptosaurus and Uteodon wasn’t legitimate (synonymized them)
- Mentioned that what made Uteodon distinctive, was truly harm to the fossil
- Additionally argued that different options MacDonald stated have been distinctive to Uteodon have been lacking, or artifacts of various views of pictures
- But in addition stated there have been nonetheless some distinctive characters, so it went again to being the species Camptosaurus aphanoecetes
- Uteodon turned Camptosaurus aphanocetes once more
- Lived in an space with rivers and wetlands, and a salt lake
- Different dinosaurs that lived across the similar time and place embody the sauropods Apatosaurus and Diplodocus, iguanodonts like Dryosaurus and Camptosaurus, Stegosaurus, and theropods like Allosaurus and Torvosaurus
- Different animals that lived across the similar time and place embody frogs, snails, turtles, lizards, crocodylomorphs, pterosaurs, and early mammals
Enjoyable Reality:
Komodo dragons may assist clarify why there’s a weirdly low inhabitants of herbivorous dinosaurs within the fossil file.
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