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I haven't been on the forum much over the last several years but I thought I'd share an article about a specimen I discovered in Montana in 2016; our KU Juvenile Tyrannosaurid. I was also hired as an assistant preparator at the KU Natural History Museum and I have been working on the specimen for several months. There is more material to the specimen than is shown in the video but we hope to share more as we move forward on our publication. https://www.history.com/news/tyrannosaurs-rex-montana-paleontology-discovery We are very proud of our KU fossil and it will hopefully answer several of the questions surrounding the Nannotyrannus debate -Kris Super
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http://www.foxnews.com/science/2018/03/29/stunning-dinosaur-discovery-experts-may-have-unearthed-baby-tyrannosaur-fossil-in-montana.html
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Hi there! I picked up this fossil while trilobite hunting over the summer along the continental divide in Montana. I keep looking at it and my curiosity is getting the better of me. I don't know if it is a trace fossil or a plant or something else. All I know is its not a trilobite. Maybe related to a stalked echinoderm or a crinoid, unfortunately I haven't found any applicable literature. This was found loose among various trilobite fragments at the base of Dearborn Limestone cliffs with Pagoda Limestone, Pentagon Shale and Steamboat Limestone above so this should be Middle Cambrian. The intriguing aspect to this fossil is the seemingly segmented appendages stemming from a central stalk. I am just another novice collector who enjoys all aspects of the natural world with limited geology experience but I more fossil hunts planned. Thanks for looking, jj
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A Chirostenotes claw
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Hello, these teeth were sold to me as a mix of Triceratops and hadrosaur spitter teeth from Hell Creek Formation of Montana. Thanks to @Troodon, I now know these kinda teeth are ceratopsian spitter. Is there any way to tell if they belong to Triceratops, or any of ceratopsians such as Leptoceratops? Also, teeth 4 and 5 are unusually shiny. At the right angle, parts of them almost seem to be bronze. Are they pyritized? If so, is this common for Hell Creek teeth? Thank you for your time. Teeth 4 Teeth 5
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From the album: MY FOSSIL Collection - Dpaul7
METASEQUOIA DAWN REDWOOD Muddy Creek Formation, Beaver Head County, Montana Oligocene Age (5 million years ago) The Dawn Redwood (Metasequoia) is a genus that dates all the way back to the age of dinosaur it is related to the California Redwoods and was thought to be extinct until living specimens were discovered in central China in 1944. First called a “fossil tree” because it was believed extinct, the fast-growing tree is now a favorite ornamental tree. It was (and is) a deciduous conifer. Today’s Metasequoia has a full pyramidal shape, grows to 120′ high. Dimensions: 2.6 Inches Long, 2.2 Inches Wide. Dawn redwoods are fast-growing trees. They will grow too large for small gardens, but can be good in a wide range of larger gardens and parks. Although they live in wet sites in their native habitat they will also tolerate dry soils. Kingdom: Plantae Division: Pinophyta Class: Pinopsida Order: Pinales Family: Cupressaceae Subfamily: Sequoioideae Genus: Metasequoia -
From the album: MY FOSSIL Collection - Dpaul7
METASEQUOIA DAWN REDWOOD Muddy Creek Formation, Beaver Head County, Montana Oligocene Age (5 million years ago) The Dawn Redwood (Metasequoia) is a genus that dates all the way back to the age of dinosaur it is related to the California Redwoods and was thought to be extinct until living specimens were discovered in central China in 1944. First called a “fossil tree” because it was believed extinct, the fast-growing tree is now a favorite ornamental tree. It was (and is) a deciduous conifer. Today’s Metasequoia has a full pyramidal shape, grows to 120′ high. Dimensions: 2.6 Inches Long, 2.2 Inches Wide. Dawn redwoods are fast-growing trees. They will grow too large for small gardens, but can be good in a wide range of larger gardens and parks. Although they live in wet sites in their native habitat they will also tolerate dry soils. Kingdom: Plantae Division: Pinophyta Class: Pinopsida Order: Pinales Family: Cupressaceae Subfamily: Sequoioideae Genus: Metasequoia -
Went out today for a few hours and found this sweet looking ammonite imprint, with fish scale bonus!
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I am looking into going to a Fossil dig (looking at the Marmarth Foundation and Paleoadventures) over the summer. I have noticed that some digs specify you have to pay for some of your finds ie T Rex teeth. Anyone have any advice on how much I should spend on T Rex tooth? Or able to give me a crash course on appraising their worth? I dont want to just shell out $$ over a tooth that isnt worth half the amount I paid.
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These are my T-Rex and Nanotyrannus teeth. I acquired most of them pretty recently. They are some of my most prized dinosaur fossils. I'll post my T-Rex/Nano bones soon as well. Pic 1 and 2= Nanotyrannus lancensis tooth, Hell Creek formation, South Dakota Pic 3,4,5= Nanotyrannus lancensis tooth, Hell Creek formation, Montana Pic 6,7,8= Tyrannosaurus rex tooth, Hell Creek formation, Montana Pic 9= Tyrannosaurus rex pieces and tips, Hell Creek formation, Montana Pic 10 and 11= Tyrannosaurus rex tooth, Hell Creek formation, Montana Pic 12= Nanatyrannus lancensis teeth, Hell Creek formation, Montana Pic 13= T-Rex and Nano fragments, Lance formation, Wyoming
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Hi, I recently got hold of this 1" premaxillary tooth which was found in the Judith River Formation, Montana. Could any of the local expects confirm whether this is Albertosaurus? Thanks in advance
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From the album: MY FOSSIL Collection - Dpaul7
Baculite Fossil, larger Segment SITE LOCATION: northeast Montana TIME PERIOD: Cretaceous period (66-145 million years) Nice little segment of fossilized baculite from northeast Montana that shows off the suture lines of these ancient animals. Interesting tiny druzy formations on the ends. Lots of sparkle. Baculites from this are dated to the Cretaceous period and are over 65 million years old. aculites ("walking stick rock") is an extinct genus of cephalopods with a nearly straight shell, included in the heteromorph ammonites. The genus, which lived worldwide throughout most of the Late Cretaceous, was named by Lamarck in 1799. The adult shell of Baculites is generally straight and may be either smooth or with sinuous striae or ribbing that typically slant dorso-ventrally forward. The aperture likewise slopes to the front and has a sinuous margin. The venter is narrowly rounded to acute while the dorsum is more broad. The juvenile shell, found at the apex, is coiled in one or two whorls and described as minute, about a centimeter in diameter. Adult Baculites ranged in size from about seven centimeters (Baculites larsoni) up to two meters in length. As with other ammonites, the shell consisted of a series of camerae, or chambers, that were connected to the animal by a narrow tube called a siphuncle by which gas content and thereby buoyancy could be regulated in the same manner as Nautilus does today. The chambers are separated by walls called septa. The line where each septum meets the outer shell is called the suture or suture line. Like other true ammonites, Baculites have intricate suture patterns on their shells that can be used to identify different species. One notable feature about Baculites is that the males may have been a third to a half the size of the females and may have had much lighter ribbing on the surface of the shell. The shell morphology of Baculites with slanted striations or ribbing, similarly slanted aperture, and more narrowly rounded to acute keel-like venter points to its having had a horizontal orientation in life as an adult. This same type of cross section is found in much earlier nautiloids such as Bassleroceras and Clitendoceras from the Ordovician period, which can be shown to have had a horizontal orientation. In spite of this, some researchers have concluded that Baculites lived in a vertical orientation, head hanging straight down, since lacking an apical counterweight, movement was largely restricted to that direction. More recent research, notably by Gerd Westermann, has reaffirmed that at least some Baculites species in fact lived in a more or less horizontal orientation. Kingdom: Animalia Phylum: Mollusca Class: Cephalopoda Order: †Ammonitida Family: †Baculitidae Genus: †Baculites -
From the album: MY FOSSIL Collection - Dpaul7
Baculite Fossil, larger Segment SITE LOCATION: northeast Montana TIME PERIOD: Cretaceous period (66-145 million years) Nice little segment of fossilized baculite from northeast Montana that shows off the suture lines of these ancient animals. Interesting tiny druzy formations on the ends. Lots of sparkle. Baculites from this are dated to the Cretaceous period and are over 65 million years old. aculites ("walking stick rock") is an extinct genus of cephalopods with a nearly straight shell, included in the heteromorph ammonites. The genus, which lived worldwide throughout most of the Late Cretaceous, was named by Lamarck in 1799. The adult shell of Baculites is generally straight and may be either smooth or with sinuous striae or ribbing that typically slant dorso-ventrally forward. The aperture likewise slopes to the front and has a sinuous margin. The venter is narrowly rounded to acute while the dorsum is more broad. The juvenile shell, found at the apex, is coiled in one or two whorls and described as minute, about a centimeter in diameter. Adult Baculites ranged in size from about seven centimeters (Baculites larsoni) up to two meters in length. As with other ammonites, the shell consisted of a series of camerae, or chambers, that were connected to the animal by a narrow tube called a siphuncle by which gas content and thereby buoyancy could be regulated in the same manner as Nautilus does today. The chambers are separated by walls called septa. The line where each septum meets the outer shell is called the suture or suture line. Like other true ammonites, Baculites have intricate suture patterns on their shells that can be used to identify different species. One notable feature about Baculites is that the males may have been a third to a half the size of the females and may have had much lighter ribbing on the surface of the shell. The shell morphology of Baculites with slanted striations or ribbing, similarly slanted aperture, and more narrowly rounded to acute keel-like venter points to its having had a horizontal orientation in life as an adult. This same type of cross section is found in much earlier nautiloids such as Bassleroceras and Clitendoceras from the Ordovician period, which can be shown to have had a horizontal orientation. In spite of this, some researchers have concluded that Baculites lived in a vertical orientation, head hanging straight down, since lacking an apical counterweight, movement was largely restricted to that direction. More recent research, notably by Gerd Westermann, has reaffirmed that at least some Baculites species in fact lived in a more or less horizontal orientation. Kingdom: Animalia Phylum: Mollusca Class: Cephalopoda Order: †Ammonitida Family: †Baculitidae Genus: †Baculites -
From the album: MY FOSSIL Collection - Dpaul7
Baculite Fossil, larger Segment SITE LOCATION: northeast Montana TIME PERIOD: Cretaceous period (66-145 million years) Nice little segment of fossilized baculite from northeast Montana that shows off the suture lines of these ancient animals. Interesting tiny druzy formations on the ends. Lots of sparkle. Baculites from this are dated to the Cretaceous period and are over 65 million years old. aculites ("walking stick rock") is an extinct genus of cephalopods with a nearly straight shell, included in the heteromorph ammonites. The genus, which lived worldwide throughout most of the Late Cretaceous, was named by Lamarck in 1799. The adult shell of Baculites is generally straight and may be either smooth or with sinuous striae or ribbing that typically slant dorso-ventrally forward. The aperture likewise slopes to the front and has a sinuous margin. The venter is narrowly rounded to acute while the dorsum is more broad. The juvenile shell, found at the apex, is coiled in one or two whorls and described as minute, about a centimeter in diameter. Adult Baculites ranged in size from about seven centimeters (Baculites larsoni) up to two meters in length. As with other ammonites, the shell consisted of a series of camerae, or chambers, that were connected to the animal by a narrow tube called a siphuncle by which gas content and thereby buoyancy could be regulated in the same manner as Nautilus does today. The chambers are separated by walls called septa. The line where each septum meets the outer shell is called the suture or suture line. Like other true ammonites, Baculites have intricate suture patterns on their shells that can be used to identify different species. One notable feature about Baculites is that the males may have been a third to a half the size of the females and may have had much lighter ribbing on the surface of the shell. The shell morphology of Baculites with slanted striations or ribbing, similarly slanted aperture, and more narrowly rounded to acute keel-like venter points to its having had a horizontal orientation in life as an adult. This same type of cross section is found in much earlier nautiloids such as Bassleroceras and Clitendoceras from the Ordovician period, which can be shown to have had a horizontal orientation. In spite of this, some researchers have concluded that Baculites lived in a vertical orientation, head hanging straight down, since lacking an apical counterweight, movement was largely restricted to that direction. More recent research, notably by Gerd Westermann, has reaffirmed that at least some Baculites species in fact lived in a more or less horizontal orientation. Kingdom: Animalia Phylum: Mollusca Class: Cephalopoda Order: †Ammonitida Family: †Baculitidae Genus: †Baculites -
From the album: MY FOSSIL Collection - Dpaul7
Baculite Fossil, larger Segment SITE LOCATION: northeast Montana TIME PERIOD: Cretaceous period (66-145 million years) Nice little segment of fossilized baculite from northeast Montana that shows off the suture lines of these ancient animals. Interesting tiny druzy formations on the ends. Lots of sparkle. Baculites from this are dated to the Cretaceous period and are over 65 million years old. aculites ("walking stick rock") is an extinct genus of cephalopods with a nearly straight shell, included in the heteromorph ammonites. The genus, which lived worldwide throughout most of the Late Cretaceous, was named by Lamarck in 1799. The adult shell of Baculites is generally straight and may be either smooth or with sinuous striae or ribbing that typically slant dorso-ventrally forward. The aperture likewise slopes to the front and has a sinuous margin. The venter is narrowly rounded to acute while the dorsum is more broad. The juvenile shell, found at the apex, is coiled in one or two whorls and described as minute, about a centimeter in diameter. Adult Baculites ranged in size from about seven centimeters (Baculites larsoni) up to two meters in length. As with other ammonites, the shell consisted of a series of camerae, or chambers, that were connected to the animal by a narrow tube called a siphuncle by which gas content and thereby buoyancy could be regulated in the same manner as Nautilus does today. The chambers are separated by walls called septa. The line where each septum meets the outer shell is called the suture or suture line. Like other true ammonites, Baculites have intricate suture patterns on their shells that can be used to identify different species. One notable feature about Baculites is that the males may have been a third to a half the size of the females and may have had much lighter ribbing on the surface of the shell. The shell morphology of Baculites with slanted striations or ribbing, similarly slanted aperture, and more narrowly rounded to acute keel-like venter points to its having had a horizontal orientation in life as an adult. This same type of cross section is found in much earlier nautiloids such as Bassleroceras and Clitendoceras from the Ordovician period, which can be shown to have had a horizontal orientation. In spite of this, some researchers have concluded that Baculites lived in a vertical orientation, head hanging straight down, since lacking an apical counterweight, movement was largely restricted to that direction. More recent research, notably by Gerd Westermann, has reaffirmed that at least some Baculites species in fact lived in a more or less horizontal orientation. Kingdom: Animalia Phylum: Mollusca Class: Cephalopoda Order: †Ammonitida Family: †Baculitidae Genus: †Baculites -
Taken from Lund, Richard, and Grogan, E.D., 2005, Bear Gulch web site, www.sju.edu/research/bear_gulch, 14/11/2016, page last updated 2/1/2006: "Heteropetalus elegantulus is an elegantly slim little euchondrocephalan with many different tooth shapes along its jaws. It ranges to only about 4 inches in length. Skull, jaws, and dentition place it close to Debeerius. It is common in the weedier shallow water areas. There are no scales, except for a small patch at the rear of the dorsal fin of males. Lateral line canals of the head are supported by rather large highly modified scales. Heteropetalus has an almost eel-like body, a protocercal tail, rounded and very flexible pectoral fins midway up the sides of the body, and a single long flexible undulatory dorsal fin (preceded by a small fin spine). All these features indicate a maneuverer in weedy or reef-like environments as well as along the bottom. Mature males have a distinctly strengthened, hooked and denticulated posterior end of the dorsal fin; the dorsal fin of males was significantly higher than that of females. This dorsal fin dimorphism is similar to that seen in the Gouramies, modern bony tropical fish available in any pet store. They have a very small mouth, with the teeth crowded to the front of the jaws, and a variety of plucking, nipping, and crunching teeth. The jaw suspension itself is rather flexible to give it a certain amount of both lateral and fore-and-aft motion. The bright yellow spots in the dorsal view of a head are the inner ears, and the yellow is from iron oxide particles that were bio-concentrated during the life of this fish. H. elegantulus was originally described as a petalodont, but subsequent discoveries proved it to be otherwise; it is closely related to Debeerius ellefseni." This fish is clearly a male as shown by the claspers. References: Lund, R. (1977). A new petalodont (Chondrichthyes, Bradyodonti) from the Upper Mississippian of Montana. Annals of Carnegie Museum, 46 (19): 129-155. Grogan E.D. & Lund, R. (2000). Debeerius ellefseni (Fam. Nov., Gen. Nov., Spec. Nov.), an autodiastylic chondrichthyan from the Mississippian Bear Gulch Limestone of Montana (USA), the relationships of the Chondrichthyes, and comments on gnathostome evolution. Journal of Morphology, 243 (3): 219-245.
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From the album: Dinosaurs and Reptiles
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From the album: Dinosaurs and Reptiles
30 mm nicely preserved tyrannosaur tooth. As I understand, it is impossible to distinguish between Gorgosaurus, Daspletosaurus and Albertosaurus from Judith River Fm. -
Hey everyone. I purchased this fossil recently and wanted to get your opinions on it. It is from the Hell Creek formation of Montana. The seller says that is either a surangular or angular bone from a theropod jaw. After looking at pictures it does look very similar to the angular bone of a Nanotyrannus, looks about the right size too. What do you dinosaur experts think? Thanks! -Mike
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We were exploring the Hell Creek Formation in Montana, and found very similar sections of jaw bone. It seems like structurally, this section was the strongest and most likely to survive. As you can see, they are very small... Any idea on what these might have come from?? Thanks for any tips!
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Summer Road Trip - Part 3 - Hell Creek Dino Hunt - **UPDATED!**
abctriplets posted a topic in Fossil Hunting Trips
From our Fish Dig in Kemmerer, Wyoming (Fish Dig Trip Report), we drove back up to Montana (which was frustrating, as we had just been in this region the previous week, but we were with family members who didn't see the value in spending all day out in the heat looking at rocks...) This was the first of our two days exploring the Hell Creek Formation. For this day, we went to Baisch's Dinosaur Digs (http://www.dailydinosaurdigs.com/). We were in Glendive, Montana, and Baisch's office was not far from town, and really easy to get to. We popped into the office, which turned out to be a small museum containing finds from the ranch, as well as finds donated to them. We got a very brief tutorial, and were shown some samples of common finds in the region. They showed us what bone material would look like, what crocodile scutes would be, what gar scales would look like. It was going to be a super hot day (100+), and they were kind enough to let us start an hour earlier (at 7am). We weren't sure if we would stick it out for a full day, or just do a half day. After a bathroom stop, we gathered up all of our water bags, and piled into their truck. The main owner, Shana, was out in the field already, trying to recover some kind of big bone, so we never got to meet her. Instead, we were driven out into the middle of nowhere by her assistant. While friendly, she didn't know that much about the geology or paleontology of the region. So basically, we were just doing a surface collection/survey on a ranch. Still pretty cool, and my kids loved finding bone fragments around them. The kids scrambled up and down the slopes. We warned them to stay close, and to not put their hands under any rocks, etc. Our guide had a pistol on her belt just in case we ran into rattlesnakes or mountain lions.
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My most recent and most exciting acquisition, a giant partial vert from a tyrannosaurus rex from the hell creek formation of Montana. Nearly went into cardiac arrest that I was able obtain such a large specimen from t rex, so I thought I would share. It really fills up the dinosaur collection and feels like it weighs a ton, I think the dimensions are somewhere around 6.5 inchs or so long and 10.5 inchs tall if I remember, would've been alot taller if the process was still intact and I like how the giant pores are visible cause of the damage. Super massive piece, I was worried about it collapsing my shelve but it fits fine so far.
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Found this in Glendive, Montana (hell creek). The ranch is best known for triceratops and edmontosaurus. The back of it looks concave, almost like a socket, but the front appears naturally rounded, not like a fragment of a long bone. I'm not even sure whether this is a complete bone or a fragment off something larger. The sides have 2 symmetrical curves that look a little like partial eye or nose sockets (picture 2). Perhaps this is a piece of triceratops frill or a juvenile nose horn? It reminds me of a kneecap, but I think I remember reading nonavian dinosaurs lacked kneecaps. The ranch owners had no idea, said it reminded them of a toebone. I'm really curious what you guys make of this one.
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My friend found this in Glendive Montana (hell creek, I believe). The ranch has had a few skin fossils come out, but mostly mud impressions. This appears to be attached to the bone. What do you guys think?
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What is this?
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