Episode 206 is all about Zuniceratops, a ceratopsian that was found in New Mexico by an 8 year-old.
We additionally interview Jingmai O’Connor, professor on the Institute of Vertebrate Paleontology and Paleoanthropology of the Chinese language Academy of Sciences who lately described the primary ever fossilized dinosaur lung stays
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On this episode, we focus on:
Information:
- A 130 million yr previous fossil from Hebei Province in China has been discovered supply
- The “Baofenglong fossil” lately went on show at Chongqing Yongchuan Museum City Corridor in China. An 80% full 49 ft (15 m) lengthy herbivore supply
- Residents close to the Tumbler Ridge Museum voted to fund the museum with added points of interest and providers supply
- Extra particulars from this years SVP convention (referred abstracts will be discovered within the PDF from the assembly) supply
- Most sauropod fossils are from adults. Dwarf sauropods have a youthful distribution, however nonetheless principally adults.
- A number of fashions of Yi qi further wrist bone had been proposed to search out an orientation that will have labored with its patagial membranes
- Flight evolution will be categorized into 4 evolutionary phases: characters unrelated to flight, exapted traits, direct choice, and traits for longer flight length
- Pterosaurs and maniraptorans couldn’t assume a bat-like pose
- Microraptor & Rahonavis may glide, Changyuraptor used it’s tail for pitch management, however troodontids had been too large (relative to their wings) to get off the bottom
- Ichthyornis has a cranium half means between Archaeopteryx and trendy birds
- “Birds are the one group of animals that rival mammals when it comes to mind measurement”
- Sauropod trackway “gauge” may not imply a lot
- A synchrotron of coprolite from an early dinosaur like Silesaurus opelensis confirmed a lot of beetle stays together with wings & beetle tibia
- Primarily based on carbon-13 isotopes in Deinonychus and Tenontosaurus it seems that raptors weren’t pack hunters
- Due to guinea fowl strolling by way of comfortable mud we’re nearer than ever to recreate how dinosaurs made their tracks
- The pectoralis of Archaeopteryx was smaller than trendy birds, however could have nonetheless been giant sufficient to attain temporary flight
- A examine of Psittacosaurus braincases reveals that 2 year-old brains elongate considerably (midbrain & olfactory tract/bulbs particularly)
- Ugrunaaluk was smaller than its huge cousins like Edmontosaurus, presumably due to dwarfism from residing within the arctic reaching about 18-19ft lengthy
- A brand new ceratopsian was present in Grand staircase Escalante Nationwide Monument
The dinosaur of the day: Zuniceratops
- Zuniceratops (request from Dinosaur4602, by way of youtube)
- Phonetic: Zoo-nee-ceh-ra-tops.
- Ceratopsian that lived within the Late Cretaceous in what’s now New Mexico, U.S. (within the Moreno Hill Formation)
- Intermediate sized for a ceratopsian
- About 9.8-11.5 ft (3-3.5 m) lengthy
- Weighed about 200-250 lb (100-150 kg)
- Had an extended, low snout
- Had giant forehead horns, much like chasmosaurs and primitive centrosaurs (barely recurved)
- Horns in all probability grew with age
- First recognized ceratopsian to have forehead horns
- Didn’t have a nostril horn
- Had a skinny, broad frill, with a pair of huge holes that had been lined with pores and skin (made the frill bigger than if it was stable)
- Frill in all probability used for show (holes weren’t good for protection)
- Reveals the evolution of early ceratopsians and the later ceratopsids that had giant horns and frills
- At first, Zuniceratops was thought to have a wierd squamosal, however a later examine discovered that squamosal was truly an ischium of one other dinosaur, the therizinosaur theropod Nothronychus (scientists discovered a bonebed and had been in a position to decide what kind of fossil it was)
- First Zuniceratops discovered had single-rooted enamel, which was uncommon for ceratopsians
- However later finds had double-rooted enamel, which reveals that enamel turned double rooted when Zuniceratops aged
- Present in 1996 by 8-year-old Christopher James Wolfe (son of Douglas Wolfe, a paleontologist)
- Discovered one cranium and fossils from a number of people
- Described in 1998 by Douglas Wolfe and James Kirkland
- Sort species is Zuniceratops christopheri
- Title means “Zuni-horned face”
- Zuni is in honor of the Zuni folks, who lived within the area the place Zuniceratops was discovered
- Species title refers to Christopher James Wolfe
- Oldest species present in North America, which helps present they developed in North America, as a substitute of Asia
- Lived about 89-93 million years in the past
- Herbivore
- Probably lived in herds
- Potential Zuniceratops monitor present in New Mexico. Researchers discovered 13 foot prints of small, medium, and enormous tyrannosaurs. The tracks are parallel, which can point out a “household group, shifting in live performance,” in keeping with Douglas Wolfe. The tracks begin in a straight line after which change route and veer off. Wolfe’s spouse, Hazel, noticed a spherical footprint the place the tyrannosaur tracks swerve, and there are small piles of sediment that will point out the animal with the spherical footprint kicked up some sand when it ran away. It’s doable the spherical footprint belongs to Zuniceratops. This monitor website could present tyrannosaurs hunted collectively, although would want extra information to know for certain
- Different dinosaurs present in the identical space embrace an unnamed hadrosaur, a dromaeosaurid, and a therizinosaur
- Can see Zuniceratops on the Arizona Museum of Pure Historical past in Mesa
- Can see on Discovery Channel’s When Dinosaurs Roamed America, aired in 2001
Enjoyable Truth:
In the course of the late cretaceous the common temperature in Utqiagvik, Alaska was ~37-47F (3–8C) at this time it averages simply 10F (-12C). Nevertheless, Juneau was about the identical temperature as it’s at this time 42F (6C). So dinosaurs discovered in numerous elements of Alaska would have had totally different climates and variations.
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