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Showing results for tags 'hell creek formation'.
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From the album: Hell Creek / Lance Formations
Dark clouds and thunder mean it's time to pack up the quarry for the day. -
From the album: Hell Creek / Lance Formations
Leaflets and plant litter from the dawn redwood. This fossil was recovered on state-owned land under proper permit, and is not a part of my collection. -
From the album: Hell Creek / Lance Formations
These tilted sandstone layers tell the story of an ancient river channel that flowed 66 million years ago. -
From the album: Hell Creek / Lance Formations
Fine layers in siltstone, "rhythmites", potentially due to tidal influence from the nearby coast? Cleaving along the dark layers reveals organic planty material. -
From the album: Hell Creek / Lance Formations
Ripple marks preserved in channel sandstone. -
From the album: Hell Creek / Lance Formations
Leaf from a Ginko tree. They have a unique fan shape with radiating veins. It's remarkable to see as a fossil since it's still around today. This fossil was recovered on state-owned land under proper permit, and is not a part of my collection. -
From the album: Hell Creek / Lance Formations
Metasequoia is an ancient tree that was first known as a fossil before a living grove was found in China last century. This fossil was recovered on state-owned land under proper permit, and is not a part of my collection. -
From the album: Hell Creek / Lance Formations
Unknown leaf. This fossil was recovered on state-owned land under proper permit, and is not a part of my collection. -
From the album: Hell Creek / Lance Formations
A leaf from a plane tree. My pick found it before I did, unfortunately. This fossil was recovered on state-owned land under proper permit, and is not a part of my collection. -
From the album: Hell Creek / Lance Formations
If you want T. rex in your Jurassic Park, this is the amber you need. This fossil was recovered on state-owned land under proper permit, and is not a part of my collection.-
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From the album: Hell Creek / Lance Formations
A seed from an extinct palm tree that grew in the forested, coastal floodplains of northern Laramidia. This fossil was recovered on state-owned land under proper permit, and is not a part of my collection.-
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From the album: Hell Creek Formation Microsite
These large lizards are kin to modern monitors like the Komodo dragon. The possess sharp, finely serrated teeth and long claws good for climbing and digging. They likely preyed on smaller animals like other lizards and mammals, and may have been the bane of parent dinosaurs as some paleontologists have suggested they could raid dinosaur nests. Varanoid “monitor lizard” fossils. A) trunk vertebra, missing a good portion of the process; B) tooth showing basal cross section silhouette and closeup of serrations. -
From the album: Hell Creek Formation Microsite
I found a few holostean-grade scales that haven’t been attributed to more precise taxa, and are referred to as holostean “A” and “B” in the literature. These are not gar and are something else. -
From the album: Hell Creek Formation Microsite
Lonchidion was one of the last of the hybodonts, a lineage of shark-like fishes spanning nearly 300 million years before they went extinct along with the non-avian dinosaurs. Lonchidion had barbed spines on their dorsal fins and a durophagous dentition more suited to grinding than grasping. Like most hybodont teeth, their roots are fragile and their teeth are only rarely found complete. In this deposit they seem to be fairly rare; I’ve thus far only found two. -
From the album: Hell Creek Formation Microsite
Unionoid mussel shells. Most are incomplete and very fragile! -
From the album: Hell Creek Formation Microsite
An anteriorly-situated tooth from a juvenile dromaeosaurid. -
I brought a small lot of amber; they are from the hell creek formation, wibaux county Montana. I was wonder how I should store them. They are extremely fragile, and I’m not sure if I should use superglue or something on them. Let me know if there is anything else I should know about storing them and thanks alot!
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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
Mammals are always a joy to find - a rooted marsupial lower premolar. -
From the album: Hell Creek Formation Microsite
An enigmatic tooth taxon prevalent throughout the Late Cretaceous. Unfortunately, that means not much is known about the animal that wielded these blade-like chompers. Historically, these have been considered theropod dinosaurs. -
From the album: Hell Creek Formation Microsite
A collection of microscopic (~ 1 mm in size) teeth from the orectolobiform, Galagadon. These are very difficult to collect, as it requires sieving a large volume of sediment and searching the concentrate under a microscope. -
From the album: Hell Creek Formation Microsite
A rooted tooth from a juvenile Leptoceratops, a smaller cousin of Triceratops. -
From the album: Hell Creek Formation Microsite
A fragment of a frog jaw, with telltale bumps on the labial surface. -
From the album: Hell Creek Formation Microsite
Salamander jaw fragments. (A) premaxilla; (B) dentary fragments (Scapherpeton?); (C) jaw fragment with intact teeth (Habrosaurus?).- 2 comments
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From the album: Hell Creek Formation Microsite
Mussel shell fragments litter the matrix, so much so that even in the finest grain size it looks to have been laced with glitter. The original shell material that makes them appear iridescent (nacre) is preserved, which makes it somewhat surreal to sort through - as if this dirt was shoveled from a river yesterday. The colors are more vibrant when they’re damp. Unfortunately they are extremely fragile and crumble if you so much as look at them.
