Episode 268 is all about Dryptosaurus, New Jersey’s smaller cousin of T. rex.
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On this episode, we focus on:
Information:
- Two new dinosaurs Isasicursor & Nullotitan had been described from Southern Argentina supply
- Virginia Dwelling Museum is having a dinosaur yr, with two displays supply
- Jurassic Dinosaur Park is being constructed this yr in Chongqing China supply
- A glow-in-the-dark dinosaur present is coming to Michigan on January 25 supply
- There’s a DinoFest in Christchurch, New Zealand from Jan 9-18 supply
- There are rumors that subsequent season of Energy Rangers can have dinosaurs supply
- Moon Lady and Satan Dinosaur: Full Moon has simply been launched supply
- The brand new VR recreation Dinosaur Island has been launched supply
- The sport Dino Disaster is getting up to date for PC as Dino Disaster Rebirth supply
- If the Loss of life Star hit a planet it might have prompted a “dinosaur-sized extinction occasion” supply
The dinosaur of the day: Dryptosaurus
- Tyrannosauroid that lived within the Cretaceous in what’s now New Jersey, US
- Massive, bipedal carnivore
- Estimated to develop as much as 25 ft (7.5 m) lengthy
- Weighed about 1.7 tons (primarily based on one specimen)
- Well-known due to Charles Knight portray of Leaping Laelaps (was once Laelaps)
- Charles Knights’ Leaping Laelaps was one of many first (possibly the primary) depiction of theropods as lively and agile
- One of many Bone Wars dinosaurs (episode 250)
- Could have had an arctometatarsalian foot, like Albertosaurus and Tyrannosaurus, the place the third toe is pinched in between the second and fourth toes
- Had comparatively brief arms, and lengthy fingers
- However they had been lengthy arms, in comparison with dinosaurs like T. rex
- Had massive palms with three fingers, although Brusatte and others in 2011 discovered it could have been just like derived tyrannosaurids and will have had solely two useful fingers
- Had 8-inch, talon-like claws
- Having the large palms might imply that tyrannosauroids didn’t uniformly shrink their forelimbs
- Could also be attainable tyrannosauroids arms obtained shorter earlier than their palms obtained smaller (want extra fossils to know)
- Had sharp, serrated enamel
- Could have used arms and jaws when searching and consuming prey
- Not clear what it ate (not many Cretaceous dinosaurs from the East Coast of the US identified)
- Could have been hadrosaurids, nodosaurs (however an excessive amount of armor)
- Lived in a coastal setting
- In the course of the Late Cretaceous there was a heat inland sea that separated western and jap North America
- Due to the ocean, it was remoted from Tyrannosaurus and Triceratops and different dinosaurs of the west, and will have had extra generalist options, like earlier dinosaurs
- Not many fossils identified
- Described by Edward Drinker Cope 1866
- Laelaps means “hurricane” or “storm wind” and is the identify of the canine in Greek mythology that all the time caught what it hunted (however the identify Laelaps had already been used for a mite)
- Renamed by Othniel Charles Marsh 1877
- Kind species is Dryptosaurus aquilunguis
- Genus identify means “tearing lizard”
- Species identify refers to its three-fingered hand, and the way it has claws like an eagle’s
- One of many first theropods identified (earlier than Dryptosaurus, solely theropod enamel had been discovered)
- Kind specimen present in New Jersey, within the West Jersey Marl Firm Pit (Hornerstown Formation in Barsboro)
- Quarry employees collected the specimen
- Kind specimen features a fragmentary maxilla, fragmentary proper dentary, vertebrae, components of the hand, components of the pubic bones, left femur, left tibia, left fibula, left astragalus
- Most likely a mature specimen
- Just a few completely different names and species (most thought-about doubtful)
- Cope named Laelaps trihedrodon in 1877 primarily based on a partial dentary that’s now lacking, present in Colorado (Morrison Formation). 5 partial tooth crowns that had been regarded as Laelaps trihedrodon are actually thought they may belong to Allosaurus
- Cope named Laelaps macropus primarily based on a partial hind limb that Joesph Lediy had throught was Coelosaurus (however had longer toes). In 2017, it was named a brand new genus, Teihivenator
- Thought-about to be a primitive tyrannosauroid, although it took a while (categorised up to now as megalosaurid, coelurosaur, and so on.)
- Gary Vecchiarelli labored on Venture: Dryptosaurus, and he reviewed the historical past and significance of Dryptosaurus, with the purpose to place a full reconstruction Dryptosaurus on show on the New Jersey State Museum, which I feel is the skeletal Leaping Laelaps they’ve had on show since 2016
- Paleoartist Tyler Keillor crowdsourced funding and made a life sized reproduction of Dryptosaurus for the Dunn Museum in Libertyville, Illinois
Enjoyable Truth:
Eire is lacking dinosaur fossils as a result of the Mesozoic rock eroded a very long time in the past, even then, a lot of the finds are marine.
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