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Showing results for tags 'edmontosaurus annectens'.
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From the album: Hell Creek / Lance Formations
A remarkable dental battery of the hadrosaurid dinosaur, Edmontosaurus annectens. Hadrosaurs had highly sophisticated teeth arranged in these batteries which advanced teeth in a conveyer-belt fashion to replace worn ones. Even the roots of teeth were used once the enameled crowns wore away. This one was in active use and fossilized when the animal died. This battery in particular is special, as it was collected by former forum member Troodon, seen in his "My Jurassic Park" thread here. It comes from a hadrosaur-dominated bone bed. -
From the album: Hell Creek Formation Microsite
A large hadrosaurid (Edmontosaurus annectens) dentary tooth, recovered from a channel deposit in Montana.-
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From the album: Hell Creek / Lance Formations
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This is part two of my fall trip the first part was posted under trips to the museum Link Part one: Sept Dig Trip: Black Hills Institute - A Trip to the Museum - The Fossil Forum A short trip but like many enjoyed it, found some nice items and the weather was much better that what I saw in June. First let me share some photos of items collected in June that are finished. All Edmontosaurus annectens, Hell Creek Formation Skull element : quadrate 13.75" long Before: After to see its location Center Toe Bone Digit III -1, 5" Front to back Before After Chevron : 14.5" Long , second one in two seasons this size Before Getting there is half the fun SD 85 where I am is straight for miles and miles and miles. They could use some rain. Roadside store It's common to run into Cows crossing a pasture and they typically move but Horses that are stubborn and don't want to move, they are in charge Heavy horn works beautiful herd Love the mailboxes
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From the album: Hell Creek / Lance Formations
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From the album: Hell Creek / Lance Formations
Unworn Hadrosaur tooth from the maxillary (upper jaw). Based on the size, it could be from a juvenile. -
From the album: Dinosaurs
Edmontosaurus annectens Hell Creek Fm., Harding Co., SD, USA Partial dental battery Hadrosaurs had the most histologically complex teeth of any animal, with six unique tissues. This allowed for differential wear, creating an ideal coarse surface for grinding plant matter. (Erickson et al. (2012)) -
From the album: Dinosaurs
Edmontosaurus annectens Hell Creek Fm., Harding Co., SD, USA -
From the album: Dinosaurs
Edmontosaurus annectens Hell Creek Fm., Harding Co., SD, USA-
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Edmontosaurus annectens may have been the largest dinosaur in the Hell Creek/Lance Formations not T rex. Here is an article that gets into the specifics. https://thesauropodomorphlair.wordpress.com/2021/02/10/size-of-the-duck-titans/
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The skull of any dinosaur is composed of many different elements. When I go collecting in an Edmontosaurus bonebed one never finds a skull but the elements that make up one up. Like to use this topic to share the complexity and variety of some of the elements I have collected. I do not have many but will post the ones I have and will continue to add as I prep or find them. Of course if anyone sees any discrepancies please feel to comment and like to thank Olof (LordTrilobite) in the ID of some. Skull still in a jacket not from my usual bonebed but one can see it all together. One day I'll get it mounted. To aid in identification of where SOME these elements are located have this illustration that comes from Marsh's 1893 This is a Saurolophus skull but elements are the same QJ: Quadrotojugal PMX: Premaxilla L: Lacrimal SA: Surangular SQ: Squamosal PO: Postorbital EO: Exoccipital Dentary (Less Teeth ) The Maxilla Surangular Squamosal Quadrotojugal Exoccipital Quadrate \ Splenial
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From the album: Dinosaurs
In this image, you can see the enamel, dentine, and pulp cavity. The surface is worn flat and smooth. Nice blue color in there. -
From the album: Dinosaurs
Hadrosaurs evolved very interesting teeth and complex mastication. Read "Complex Dental Structure and Wear Biomechanics in Hadrosaurid Dinosaurs:" https://science.sciencemag.org/content/338/6103/98-
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Over twenty years of work on the Hanson Ranch Bonebed in the Lance Formation of eastern Wyoming has yielded over 13,000 individual elements primarily of the hadrosaur Edmontosaurus annectens. Findings are presented in this paper. https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0233182
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Edmontosaurus jaw section
kirkjeremiah23 posted a topic in Is It Real? How to Recognize Fossil Fabrications
Thoughts on this jaw section of a Edmontosaurus. Has there been any restoration? Authentic? These are the only pictures sent to me. He is asking a pretty penny debating on if it would be a good addition for my collection. Any information is greatly appreciated. Thanks again guys
