Search the Community
Showing results for tags 'south dakota'.
-
Hi All! I discovered a long-forgotten box of rocks in our science storeroom and would appreciate some id help with them. A previous teacher had moved out all of the fossils except a handful they used . I'm sure these only escaped because no one knew they were there. The box was filled with rocks, plus a few masking tape labels, all of which seem to be from the Black Hills, South Dakota area. Rockerville, Tin Mountain Mine, Hill City, and Spearfish are all named. Also in the box was a 1955 Random House book called All About Our Changing Rocks. Thanks in advance for any help with these.
.thumb.jpg.608bfe6226aed3b85eb8170ae82094f3.jpg)
-
i have found quite a few micro jaws from the hell creek in the past like lizard and fish jaws, however i recently went through some old finds and noticed a small jaw, and i have absolutely no idea what it might be. it doesnt look like fish or lizard to me. the length of the jaw is about 14mm. A124 - 20190311_145352.bmp
-
It is so cold in the Chicagoland area I decided to go through fossils that I have not looked at in years. I came across a little container that contained a couple items that I collected back in the early 90’s. I am 99% sure that I collected thenm from the Pierre Shale along I-90, West of Wall Drug. I know there is a small portion of an Ammonite, but I wonder about the other pieces. I believe they all came out of the same concretion.
- 7 replies
-
- 5
-
-
- ammonite
- pierre shale
- (and 1 more)
-
https://www.eurekalert.org/pub_releases/2019-01/fm-fst011519.php https://www.popularmechanics.com/science/animals/a25953914/new-shark-species-sue-t-rex/
- 6 replies
-
- 3
-
-
- shark
- south dakota
- (and 1 more)
-
I found these on my trip to South Dakota in the Badlands. I would like to know what they might be. Thank you!
- 9 replies
-
- 4
-
-
- badlands
- south dakota
- (and 1 more)
-
Hello, A while ago I got some unprepped bones from the hell creek formation, South Dakota. This rib was in multiple pieces, but I wanted to give it a try. Could someone ID this please? Thank you Natalie
- 8 replies
-
- 2
-
-
- bones
- hell creek
- (and 2 more)
-
From the album: Sharks from other locations
-
What was the "Best Deal" that you had on a purchased fossil?
Nimravis posted a topic in General Fossil Discussion
Let's see what your "Best Deal" that you received on a fossil that you purchased. Over the years I received several great deals on fossils, here are two of my best. White River Oligocene 24" Lower Titanothere jaw with 2 partial teeth - about 20 years ago I purchased this jaw for $20.00. White River Oligocene Upper Titanothere Jaw portion with 3 complete teeth- at the same time of the above purchase, I also purchased this fossil for $10.00.
-
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 -
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.
-
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.-
- 1
-
-
- ammonite
- foxhills fm.
- (and 1 more)
-
(Posted in SD forum as well, feel free to move) I thought this would be an appropriate addition- my hope is that this map will allow forum users to plan trips to SD! Threw this thing together for you guys in some spare time at work. The map shows the extent of common fossil bearing strata in the state of South Dakota, as well as some "no-go" areas- reservations and the like. If you guys want a certain area zoomed in on let me know! FossilsSD.pdf
- 4 replies
-
- 1
-
-
- fox hills
- hell creek
- (and 6 more)
-
Calcite mold. A gift from a friend.
- 2 comments
-
- 1
-
-
- a29
- carlisle shale
- (and 4 more)
-
From the album: Fossil Discoveries
I wanted to capture an angle that evoked the feeling of encountering this animal's fossilized remains where it may have actually died.© ©
-
From the album: Fossil Discoveries
I visited the Badlands National Park in spring 2016 and photographed this badly weathered fossil turtle where it died some 30 million years ago. I subsequently informed a park ranger where I had seen the specimen.© ©
-
From the album: Sphenodiscus
-
From the album: Sphenodiscus
-
From the album: Sphenodiscus
-
From the album: Sphenodiscus
-
From the album: Sphenodiscus
-
From the album: Sphenodiscus
-
From the album: Sphenodiscus
-
From the album: Sphenodiscus
.jpg.fed23abc851f86793d48bbe70c183282.jpg)
.thumb.jpg.6496415fcef51ec558d0bd3fb72caee7.jpg)
