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Episode 260 is all about Leptoceratops, A small late cretaceous ceratopsian which will have switched between a two and four-legged stance.
Interview with Matthew Mossbrucker, the director and chief curator on the Morrison Pure Historical past Museum in Colorado the place he research the kind part of the Morrison Formation. He’s additionally on the board of the Paleon Museum the place he leads digs with the general public. Try his work on the Morrison’s Fb web page.
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On this episode, we focus on:
Information:
- A brand new Megarptorid was present in Australia, it seems lots like Australovenator, however it may be too previous supply
- One other Alaskan tracksite, the Chignik Formation, recovers an enormous variety of hadrosaurids on the seaside supply
- A brand new examine checked out Tristan the T.rex’s tooth alternative and located an alternating alternative sample supply
- Three child Protoceratops at Southern Illinois Laboratory have been given new nicknames supply
The dinosaur of the day: Leptoceratops
- Ceratopsian that lived within the Late Cretaceous in what’s now Western North America (Alberta, Canada and Wyoming, US)
- Estimated to be about 6.6 ft (2 m) lengthy and weigh 150-441 lb (68 to 200 kg)
- Each quadrupedal and bipedal (may most likely stand and run on two legs, and will stroll on 4 legs, although couldn’t pronate arms)
- A 2007 examine discovered Leptoceratops saved its arms in a “clapping” pose
- Had quick, downward pointing horns close to the cheeks
- Had a frill
- Had a leaf formed tail
- Herbivorous
- Had quick, deep jaws, and a strong chunk
- May shear and crush plant matter
- Most likely in a position to chew powerful vegetation
- Most likely was a low browser (ferns and conifers)
- One examine in 2016 by Frank Varriale (pubilshed in PeerJ) discovered the dental microwear on Leptoceratops enamel was just like some rodents, and Leptoceratops is “the primary proof of advanced, mammal-like chewing in a ceratopsian dinosaur”
- Kind species is Leptoceratops gracilis
- Genus identify means “little horned face”
- Present in 1910 by Barnum Brown within the Crimson Deer Valley in Alberta, Canada (no cranium discovered at first, however later extra fossils discovered by C. M. Sternberg in 1947, and extra fossils discovered within the Bighorn Basin in Wyoming in 1978, and that one is nicknamed “Lance”)
- Brown discovered two skeletons however they had been on a cattle pathway, and the cows trampled the uncovered fossils
- Brown described Leptoceratops in 1914
- Some fossils present in Montana in 1942 had been referred to as Leptoceratops cerorhynchos, however later renamed to Montanoceratops
- In 2003, a decrease arm bone (single ulna) was present in Australia and Patricia and Thomas Wealthy discovered it seemed just like Leptoceratops, so that they named it the ceratopsian Serendipaceratops. Some scientists suppose not sufficient is understood about it, however whether it is associated to Leptoceratops, it may change what we learn about ceratopsian evolution (no different ceratopsians present in Australia)
- Can see Leptoceratops on the Canadian Museum of Nature in Ottawa
Enjoyable Truth:
Dinosaurs have been in house at the least twice (not together with any bits which will have been launched out of the environment throughout the Chicxulub influence).