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This was found near Custer Park in South Dakota. I know it is part of a jaw bone with a tooth in it but I cannot figure out what kind of mammal it might belong to. Can you help?
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I was in an agate field in South Dakota just south of Badlands Park. Cretaceous era. I collected a few not-so-special agates and some jasper, and the pictured rock, which I thought was wind polished jasper- but it broke and had what looks to be brachiopods inside. I assume this is sedimentary or metamorphic. What is the relation between the agates in this region and the kind of specimen here? Why are there so many agate fields in this area of S Dak?
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From the album: MY FOSSIL Collection - Dpaul7
Baculite Segment Fossil SITE LOCATION: South Dakota TIME PERIOD: Cretaceous Period (66-145 Million Years ago) Data: Baculites ("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 Segment Fossil SITE LOCATION: South Dakota TIME PERIOD: Cretaceous Period (66-145 Million Years ago) Data: Baculites ("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 -
Dinosaur 13 (T. D. Miller, 2014): what do you think about Larson?
donnie86dc posted a topic in Questions & Answers
Did you watch the "documovie" Dinosaur 13? What do you think of it? Was it slanted to an unacceptable level? What is the part of the truth that is not portrayed in the movie? Why were interviewed just two (or one?) witnesses on the part of the federal government in all the movie? What was really wrong with the activity of the BHI? I would like to know more about that story, about the wrongs of each of the parts interested in the trial. From the movie it seems that the federal government was the evil and the BHI was the good guy: is it a fair reconstruction of the reality or was it the other way around? I am about to read the book of the story, Rex Appeal, because I want to know more about it, I want answers. Probably is not the best choice I could have done, as the book was written by Larson himself and Kristin Donnan, two victims of those events. The fact is, probably buying that book was the only choice, as there are no other books, to my knowledge. Was Pete Larson really doing some illegal trading of fossils as people say? I mean, he seems a good guy, I have read comments by some of you that say so. And his passion is snarge clear: I can see it from his eyes, he is in love with his job. I cannot understand how is possible to convict someone like him of illegal trade of fossils, as he seems well aware of the importance of science and of dinosaurs on education. I know I am in a huge community and probably some of you have more information about that infamous story. That's why I am writing. Thank you guys! -
This tooth was found on an anthill. It was donated to the U.S. Forest Service, Minerals and Geology Management Department., Chadron, Nebraska, in July, 2017.
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This was found on an anthill in the Hell Creek Formation, SD. A few years ago, a paleontologist at the South Dakota School of Mines looked at it and thought it could be avian. Can anyone out there confirm this? If so, any ideas as to species? Thanks for looking!
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Summer Road Trip - Part 4 - Hell Creek Dino Hunt #2
abctriplets posted a topic in Fossil Hunting Trips
From our Hell Creek Dino Hunt in Montana, (Summer Road Trip Part 3), we drove back into South Dakota to visit another section of the formation. This was the second of our two days exploring the Hell Creek Formation. For this day, we went to PaleoAdventures (http://www.paleoadventures.com/). We were in South Dakota, and PaleoAdventure's field station was not far from downtown Belle Fourche, and really easy to get to. We just followed the dino signs... Driving up the hill, we came to the small lab/field station/museum/giftshop/bathroom. Inside, we looked around at the fossils (some were for sale), and were given a brief tutorial on what we'd be finding out in the field. Walter, the lead professional paleontologist, had a handful of volunteers with him today, and there was 1 other family who would be joining us on the trip.
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Finishing identifying my daughter's find from this summer at the Hell Creek formation in South Dakota. This one was labeled edmontosaurus bone. Is there a way to get more specific as to *which* bone? It's got a nice curve to it on one side, and the other side has a curve that swoops inward. Just thought I'd ask if those were identifying features...
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This was a bone given to us by our guide in the Hell Creek Formation of South Dakota. I unfortunately did not label it. I think either Triceretops or Edmontosaurus? (those were the common finds for the day...). And would this be a limb bone? The far side is quite semi-circular, and then narrows to more of a smaller oval...
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Trying to finish up labeling of my kids' finds from the summer. This is one my daughter pulled out of the wall of a dig in the Hell Creek Formation. She had been finding a lot of croc scutes, but this one doesn't have those tell-tale "indentations" - it looks flat/smooth on both sides, but it is about the same size & thickness of her other scute finds (like the one on the right). But is it just a piece of unidentifiable bone?
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Finishing identifying some of the kids' finds. This was an awesome vertebra that my daughter dug out in the Hell Creek formation in South Dakota. It was identified for us as a Champsosaurus vertebra. Is there a way to tell *which* vertebra or *where* on the body it came from? Thanks!
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So I went to the Black Hills Insitute and I made a lot of photos, so I thought I'd share. The Black Hills Institute museum in Hill City is pretty small, it's just one hall. But this one hall is absolutely packed with stuff. This is also the home of the T. rex Stan. Many of the skeletons are casts, but there are plenty of real fossils here as well. The skeleton of Stan. This is the real skeleton and the real skull is placed beside it in the corner. But I didn't even notice that at the time. Skull of Torosaurus. Notice the holes in the frill. Triceratops doesn't have these holes in it's frill. Tylosaurus proriger. Another real specimen. Two Allosaurus skeletons. An Ornithomimid as well as Stan, the Senckenberg Edmontosaurus mummy and Tarbosaurus skull in the background. Skeleton of Albertosaurus, skull of Albertosaurus on the left and skull of Gorgosaurus on the right. A second T. rex skeleton. And a lineup of T. rex skulls in the background. Thescelosaurus and Pachycephalosaurus. Juvenile Edmontosaurus skeleton below the second T. rex skeleton. Cast of the Triceratops Raymond. Crestless Pteranodon on the left as well as a Nyctosaurus? arm/wing at the bottom. Dromaeosaurus in the middle between the legs of the Triceratops and a primitive Sirenian with legs on the right. Bambiraptor and Archaeopteryx skeletons. Foot and skull of Deinonychus and Herrerasaurus, Dromaeosaurus and Eoraptor skulls at the bottom. T. rex arm (cast of Sue) and brian endocast left. Nanotyrannus skull on the right. Mongolian Dinosaurs. Saichania and Saurolophus skulls at the top. Velociraptor skull and oviraptorid partial skeletons below that. Prenocephale, Oviraptor, Archaeornithimimus and Alioramus at the bottom. Tethyshadros top left, and Psittacosaurus nest, and skeletons on the bottom left. Brontosaurus leg in the middle and baby Apatosaurus on the right. Velociraptor and Protoceratops fighting on the far right. Edaphosaurus skeleton. And this is just a small selection of the photos I took. There's just so much stuff here and I only spent a few hours here. The gift shop is also worth a vist btw. I bought a rather nice replica of a tooth from Stan and a Thescelosaurus phalange.
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September 2017 was a busy month for me. Worked a day in the Thornton, CO Triceratops dig with other DMNS volunteers and staff. Then headed up with my son to hang out with my friend Walter Stein (Owner of Paleo Adventures), and some of his friends, to help dig at his Tooth Draw Quarry. Several good fossils were found. I found a Nanotyrannus tooth, a Thescelosaurus ulna, and other teeth and small fossils. My best find though, was a very well preserved left dentary from a mammal that may very likely be Didelphodon, or something closely related. Had a fantastic time and and made new and fun friends. Then this past weekend, I went back up to SD by myself, to help my friend Tom Caggiano (Owner of Lost World Fossils) to dig up Edmontosaurus bones at a monospecific bonebed, with some friends of his that have been collecting there for a very long time. Friday was overall a nice day. But we got rained out on Saturday. So we all headed out to Hill City, SD. First we visited with Sandy Gerken. I got to see her fossil prep lab. And several cool fossils she is working on for clients. Then we went to visit BHI and it's museum. Had the guys pose next to the bronze Triceratops skull out front. Also checked out some nice rock shops in the area. On Sunday, weather caused us to have a late start at the Edmontosaurus Bone bed. Worked on trying to fully expose an Edmontosaurus ilium I found on Friday. It turned out to be much larger than we thought. Only had a little more than a half day to work on it so unfortunately, I only got 3/4 of it exposed for removal. I was leaving Monday morning for home, so Tom Caggiano was going to try and finish pulling it out Monday morning before he also leaves. Unfortunately, they got rained out on Monday too. So Ken And Glenn said they would double foil it cover it up for us. I also found a partial Edmontosaurus maxilla, Edmontosaurus sqaumosal, cervical rib, Ischium, small manus phalanx, and a few Edmontosaurus teeth, some with roots. It was a fun trip. It was a pleasure meeting Ken Roblee, Glenn LaPlaca, and @Troodon. All three are very nice gentlemen. They made me feel quite welcome. @Troodon was a pleasure to finally meet up with. He and I spent a lot of time talking about all things dinosaur fossils. Great guy! All four individuals are, in fact, great guys!
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From the album: Cephalopods
This Hoploscaphites nicoletti fossil ammonite is from the Trail City Member of the Fox Hills Formation (Late Cretaceous, Maastrichtian) of South Dakota. The ammonite measures approximately 2.3 inches in diameter, and sits on a base of original matrix that measures approximately 4.5 x 6 inches. The whole ammonite was "popped" out from the matrix upon which it rests, and is equally well preserved on both sides. The shell has a beautiful pearly iridescent sheen.-
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Hello there! I live in western South Dakota, and my family has a ranch right in the middle of the Hell Creek Formation. There is a location about 1 mile from a river where about three years ago I found several serrated tooth fragments. I went back to this location last week to see if I could find any more of the tooth fragments. I did find some more serrated fragments, but they are from a different tooth, and possibly different species entirely. There are several areas within a 50 yard radius with bones surfacing, but they seem to be from several different creatures. I'm used to seeing triceratops and duckbill bones at the surface, which are light in color, spongy, and very, very crumbly. Most of the bones in this area are much different, and I'm not sure if that would be due to the type of sediment it was preserved in, the location, or the species. Many of these outcroppings could almost be mistaken for iron ore rock that is breaking apart. I was hoping to get some help identifying one piece in particular. Please ignore the rubber bands, I'm trying to find the missing pieces before I glue the large sections together. All the pieces together will make it around a foot long. In some areas, the bone is a dark chocolate brown, and very smooth and shiny. Any help would be greatly appreciated. I have a really hard time finding any sources of information on theropod, Hell Creek, or Cretaceous identification. If anyone knows of any good literature for this area, feel free to post a link, it would be greatly appreciated!
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Found a shoreline on the Missouri River in southeastern South Dakota with some mollusc fossils. There were lots like the one on the left, but only one I could find like the one on the right. Can anyone identify these? They'd be from the Cretaceous period, right? The fossil on the right is the size of a quarter. The ones on the left range from softball to golf ball.
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Anyone have any idea if this is a tooth? We found it near fort sisseton in South Dakota.
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Hi all, I've this nice vertebra fossil from the Hell Creek Formation in Harding County, South Dakota. I'm pretty sure it is a Crocodillian vert but not sure of the species or genus. Also, is it possible to tell which part of the body this belonged to? Any suggestions are welcome and much appreciated! Cheers, Jojo
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Found this while hiking and climbing in south west South Dakota not far from Badlands National Park. A quick google search suggested an early camel, but I'd like to know for sure if possible.
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Hello there! I was the lucky one who recently purchased "ammonite batch #3" from @RJB, and I was hoping to assign a name to the prettiest piece in the lot. I think it is a Discoscaphites sp. - what do you think? If so, there appears to be two common species belonging to this genus from the Fox Hills Formation in South Dakota (where this little guy was found) - D. conradi and D. gulosus (http://digitallibrary.amnh.org/handle/2246/815 and http://www.wmnh.com/wmima000.htm). I'm leaning towards D. conradi but, really, I'm not sure. Is there anyone out there who can help? Please see picture below: Thanks in advance! Monica
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Hello, I am new to fossil hunting and was wondering if I could get any pointers on localities in my area. NW Iowa, NE Nebraska, SE South Dakota, SW Minnesota. I know sometimes people like to keep these things secret but if you could point me in any direction it would be much appreciated, thanks and happy to be on the forum.
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Hi I'm from Sd and was recently introduced to the fossil forum by a friend Any advice to a Newbie such as myself?
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Does anyone know if the Missouri River and the bluffs along it are good for fossils and if so where would be a good place to start? It seems like a lot of good exposures are along the banks.
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Seeking ID on a vertebra likely from the White River formation in SD
varial posted a topic in Fossil ID
Hi there. More fossils from the estate sale, this time a vertebra. I don't know an exact location, but the rest of the lot contains many examples from the Oligocene era, and some have been found to be from the White River formation in the Badlands. I don't have much information other than that. I've done an image search on Google, but there are so many that I am having trouble spotting one that looks similar. Any help is appreciated! Thanks!
