Episode 327 is all about Zigongosaurus, A mamenchisaurid that was about 50 ft (15 m) lengthy, however could also be an Omeisaurus, Mamenchisaurus, or perhaps a nomen nudum.
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On this episode, we focus on:
Information:
- Over 3,500 hours have gone into the large Utahraptor block so far, uncovering over a dozen people thus far supply
- A Bohaiornis specimen seems to have gem stones that fashioned in its stomach throughout fossilization supply
- In Pennsylvania, the Philadelphia Zoo is getting animatronic dinosaurs supply
- The unreleased Nintendo 64 recreation Dinosaur Planet is now out there on the Web Archive supply
- After an replace to the sport No Man’s Sky, a number of sauropod-like creatures have been hatched supply
The dinosaur of the day: Zigongosaurus
- Mamenchisaurid sauropod that lived within the Center Jurassic in Zigong, Sichuan, China (Shaximiao Formation)
- Appears to be like like a typical sauropod
- Massive, quadrupedal, and herbivorous
- Had a protracted neck
- Estimated to be about 50 ft (15 m) lengthy
- Totally different from Zizhongosaurus, a basal sauropod that lived within the Center Jurassic in what’s now China)
- Kind species is Zigongosaurus fuxiensis
- Genus title means “Zigong lizard”
- Named in 1976 by Hou, Zhao, and Chao
- Primarily based on CV 00261, and features a partial mandible, maxilla, and bone from the braincase space
- Different specimens referred to Zigongosaurus (at the least 4 specimens), and included dorsal vertebrae, pubis, and ischium
- Authors thought it appeared like Omeisaurus, however the vertebrae was totally different sufficient to be its personal genus (had weak bifurcated, or cut up, neural spines on the vertebrae)
- Debate over whether or not or not it’s a sound genus
- Has been synonymized with Omeisaurus and Mamenchisaurus
- In 1983, Dong, Zhou, and Zhang wrote a e-book, Dinosaurs from the Jurassic of Sichuan, and stated Zigongosaurus fuxiensis was Omeisaurus fuxiensis
- Within the e-book, they stated there have been time constraints round getting ready, learning, and placing Zigongosaurus on show, so not all the information could possibly be analyzed, and that led to the fabric that was analyzed being named Zigongosaurus fuxiensis
- Their evaluation led them to reclassify Zigongosaurus as Omeisaurus, primarily based on its stratigraphic place (similar setting the place different Omeisaurus was discovered)
- Omeisaurus was named in 1939 by Younger and others, nonetheless the sort specimen was fragmentary and plenty of it misplaced in transport throughout WWII, so Dong, Zhou, and Zhang chosen a neotype in 1983
- In 1996 Zhang and Chen recommended it was Mamenchisaurus fuxiensis, and stated it got here from a strata between the place Omeisaurus and Mamenchisaurus was discovered, however that it appeared extra like Mamenchisaurus
- In 1997 Li and Cai stated it was a nomen nudum
- In 1999, Valérie Martin-Rolland discovered Zigongosaurus to be legitimate
- In 2019, Wang and others discovered it to be undiagnostic
- The paratype for Zigongosaurus fuxiensis was a maxilla with three tooth, and was thought to probably from be a juvenile
Enjoyable Reality: Making a dinosaur topiary might be simpler than you suppose.
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