Episode 360 is all about Naashoibitosaurus, a New Mexican relative of Edmontosaurus from the Late Cretaceous.
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On this episode, we focus on:
Information:
- The brand new dinosaur that resembles a miniature Coelophysis, Pendraig, was present in Wales supply
- The President of the USA restored environmental protections at Bears Ears and Grand Staircase-Escalante monuments in Utah supply
- In New Jersey, Rowan College broke floor on the dinosaur fossil park museum on the Marl Quarry supply
- The Royal Belgian Institute of Pure Sciences has a T. rex exhibit that includes a 3D forged reproduction of Trix supply
- A 14 year-old woman in India, is India’s youngest paleontologist
having collected 136 fossils in 4 years supply - One of the looked for phrases for costumes is “dinosaur” supply
The dinosaur of the day: Naashoibitosaurus
- Saurolophine hadrosaurid that lived within the Late Cretaceous in what’s now New Mexico, US (Kirtland Formation)
- Herbivorous, and had dental batteries with tons of of tooth
- Cropped crops with its beak
- Had a nasal arch that rose above the entrance of the eyes
- Kind species is Naashoibitosaurus ostromi
- Genus identify means “Creek lizard”
- Was considered discovered within the Naashoibito Member of the Kirtland Formation (now thought-about to be a part of the Ojo Alamo Formation)
- Later, discovered to be from an older a part of the formation, De-na-zin Member (a couple of million years older)
- Species identify in honor of Ostrom “for his work on the cranial morphology of hadrosaurs and for describing one of many taxa from the San Juan Basin”
- Partial skeleton discovered, and components of the cranium
- A part of the holotype discovered within the Nineteen Seventies and Nineteen Eighties
- Holotype is a big portion of the cranium, portion of an articulated cervical sequence (unprepared), a proper humerus, a number of ribs, and perhaps two dorsal vertebrae (questionably included)
- First described as Kritosaurus by Jack Horner, when he described two hadrosaur skulls in 1992
- Hunt and Lucas in 1992, unaware of Horner’s examine, had described a variety of the cranium and postcrania as Edmontosaurus saskatchewanensis
- Named in 1993 by Adrian Hunt and Spencer Lucas
- Reassigned the postcrania to Naashoibitosaurus and included certainly one of Horner’s skulls within the holotype
- Hunt and Lucas mentioned specimen couldn’t be Edmontosaurus primarily based on the morphology of the cranium roof
- Hunt and Lucas mentioned Kritosaurus navajovius was a nomen dubium
- Mentioned Kritosaurus holotype was a poor specimen (lacking components of the cranium which have many of the diagnostic options of hadrosaurs)
- In 1993 they named two new genera primarily based on the 2 hadrosaur skulls Horner described
- One was a cranium roof from what they thought got here from the Naashoibito Member
- Mentioned the 2 hadrosaur skulls have been from completely different stratigraphic models (different cranium named Anasazisaurus, from the pre-Naashoibito Kirtland)
- Additionally no proof they have been the identical taxon or ontogenetic variants of one another (development sequence)
- Therefore the 2 names
- In 2000 Thomas Williamson reexamined the holotype of Kritosaurus navajovius and located it to be legitimate and “the senior subjective synonym of each Anasazisaurus horneri and Naashoibitosaurus ostromi”
- Mentioned Naashoibitosaurus was not distinguished primarily based on morphological grounds, and that it got here from roughly the identical stratigraphic horizon and a part of related faunas to Anasazisaurus and Kritosaurus navajovius
- In 2013 Albert Prieto-Márquez discovered Naashoibitosaurus to be distinct however that Anasazisaurus was a synonym of Kritosaurus, however stored it as a definite species: Kritosaurus horneri
- Different dinosaurs that lived across the identical time and place embody Nodocephalosaurus, Parasaurolophus, Pentaceratops, Sphaerotholus, Ziapelta, Daspletosaurus, Ornithomimus, Saurornitholestes
Enjoyable Truth:
Pendraig milnerae is the third dinosaur named after Angela Milner.
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