In our 167th episode, we obtained to talk with Dr. Alexander Hastings. He’s the assistant curator of paleontology on the Virginia Museum of Pure Historical past, and his analysis pursuits embrace the evolutionary relationship between temperature and physique dimension in ectothermic animals, components that influenced turnover and extinction in fossil predators, and evolutionary variations to new environments. Comply with him on Twitter @Dr_CrocoGator and study extra at paleolab.org.
Episode 167 can also be about Xenotarsosaurus, an abelisaurid whose identify means “unusual tarsus lizard.”
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On this episode, we focus on:
Information:
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The dinosaur of the day: Xenotarsosaurus
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- Abelisaurid that lived within the Cretaceous in what’s now Argentina
- Identify means “unusual tarsus lizard”
- Juan Carlos Sciutto discovered theropod stays at a fossil web site in Chubut province in 1980
- Later, José Fernando Bonaparte and a crew discovered extra theropod bones, doubtlessly from the identical particular person
- Described in 1986 by Ricardo Martínez, Olga Giménez, Jorge Rodríguez and Graciela Bochatey
- Just one species: Xenotarsosaurus bonapartei
- Species identify in honor of José Bonaparte
- Solely recognized fossils to date are of a proper hind limb, dorsal vertebrae, femur, tibia, fibula, and a part of the ankle
- Had a whole fusion between two of the bones of the ankle, which is uncommon for a theropod (and led to its identify)
- Estimated to be 18 ft (5.4 m) lengthy
- Had some similarities to Carnotaurus sastrei, so scientists assigned it to Abelisauridae, although some suppose it’s an indeterminate neoceratosaurian theropod
- Most likely one of many foremost predators of its space, and will have preyed on Secerosaurus, a hadrosaurid, and Drusilasaura, a titanosaur
Enjoyable Truth:
T. rex would seemingly eat people if we had been round on the identical time. We’re about 1% their weight, which has similarities to a typical human meal (for a 150 pound particular person, that’s a 24oz steak). And even when we had been too small for an grownup T. rex, a juvenile would nonetheless eat us.
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This episode is delivered to you partially by TRX Dinosaurs, which makes lovely and sensible dinosaur sculptures, puppets, and reveals. You’ll be able to see some wonderful examples and works in progress on Instagram @trxdinosaurs.