Search the Community
Showing results for tags 'wyoming'.
-
Hello all! I am new to this forum and just started getting interested in rocks and fossils. I went out to Wyoming last weekend and found a lot of really nice agates and fluorescent minerals but I also came across what look like some pieces of chalcedony with these white tubular inclusions in them. I first just saw the shell imprint in the rock so I pocketed it, but later when I looked closer noticed the white webbed tubes. I posted these pictures on reddit in r/fossilid and got a few responses telling me that they are Bryozoans. I looked this up and it looks right to me! My question is this...all of the pictures of fossilized bryozoans I have seen look very traditional (in sedimentary rock). Is it usual to find them embedded in silicate like this? I cannot find one other example of this on the internet which makes me think that maybe this type of specimen is called by a different name and that I am just not searching for the right thing. Anyways, any help and insights would be much appreciated! I am going back out to Wyoming this weekend to search some more and would love to know exactly what it is I am looking for! Thanks in advance for any responses! Erik
- 3 replies
-
- 2
-
-
- bryozoan
- chalcedony
- (and 3 more)
-
Didn't pay much attention when I picked this up, just noticed it was interesting. It was a surface find and I guessed I would figure it out later. Any ideas? Found this somewhere south of Wamsutter, WY.
-
Erismatopterus is only known from Lake Gosiute and Lake Uinta deposits. It is one of the rarer Green River fish fossils, except in some mass mortality zones. Erismatopterus belongs together with its close relative Amphiplaga to the family Percopsidae within the order Percopsiformes. Amphiplaga is best distinguished from Erismatopterus by its dorsal fin, which has three hard spines (the first one is very small) followed by 9 or 10 soft rays. Erismatopterus usually has two hard spines followed by 6 or 7 soft spines. Amphiplaga can reach up to 15cm with an average length of about 10cm while Erismatopterus does not exceed 12cm with an average length of about 5cm. The Order Percopsiformes is a small order of North American freshwater fishes that includes three families: Amblyopsidae (cavefishes); Aphredoderidae (pirate perches); and Percopsidae (trout-perches). Closely related to neither trout nor perch, trout-perches have characteristics of both the trout and perch families. They exhibit characters of the salmonids, such as an adipose fin, cycloid scales, and soft fin rays, as well as characters of the percids, such as dorsal and anal fin spines, and ctenoid scales. Trout-perch are generally silvery in appearance, often with a partially transparent appearance, and relatively large heads and eyes. They are small fish with weak fin spines, and an adipose fin similar to those of trouts. They feed on insects and small crustaceans. Fossil percopsids are only known from North America, the current home of the extant genus Percopsis References: E. D. Cope (1877) A contribution to the knowledge of the ichthyological fauna of the Green River shales. Bulletin of the United States Geological and Geographical Survey 3(4):807-819. Grande, L. (1984) PALEONTOLOGY OF THE GREEN RIVER FORMATION, WITH A REVIEW OF THE FISH FAUNA. THE GEOLOGICAL SURVEY OF WYOMING, BULLETIN 63.
-
Amphiplaga is one of the rarer of the Green River fish fossils, making up some 1% of the total from Fossil Lake, its only known location. Amphiplaga belongs together with its close relative Erismatopterus to the family Percopsidae within the order Percopsiformes. Amphiplaga is best distinguished from Erismatopterus by its dorsal fin, which has three hard spines (the first one is very small) followed by 9 or 10 soft rays. Erismatopterus usually has two hard spines followed by 6 or 7 soft spines. Amphiplaga can reach up to 15cm with an average length of about 10cm while Erismatopterus does not exceed 12cm with an average length of about 5cm. The Order Percopsiformes is a small order of North American freshwater fishes that includes three families: Amblyopsidae (cavefishes); Aphredoderidae (pirate perches); and Percopsidae (trout-perches). Closely related to neither trout nor perch, trout-perches have characteristics of both the trout and perch families. They exhibit characters of the salmonids, such as an adipose fin, cycloid scales, and soft fin rays, as well as characters of the percids, such as dorsal and anal fin spines, and ctenoid scales. Trout-perch are generally silvery in appearance, often with a partially transparent appearance, and relatively large heads and eyes. They are small fish with weak fin spines, and an adipose fin similar to those of trouts. They feed on insects and small crustaceans. Fossil percopsids are only known from North America, the current home of the extant genus Percopsis References: E. D. Cope (1877) A contribution to the knowledge of the ichthyological fauna of the Green River shales. Bulletin of the United States Geological and Geographical Survey 3(4):807-819. Grande, L. (1984): PALEONTOLOGY OF THE GREEN RIVER FORMATION, WITH A REVIEW OF THE FISH FAUNA. THE GEOLOGICAL SURVEY OF WYOMING, BULLETIN 63,
-
From the album: Vertebrates
Erismatopterus levatus (COPE, 1870) Middle Eocene Green River Formation Lake Gosiute Wyoming USA Length 3.2" / 9 cm-
- 1
-
-
- eocene
- erismatopterus
- (and 2 more)
-
From the album: Vertebrates
Amphiplaga brachyptera COPE, 1877 Middle Eocene Kemmerer Wyoming USA Length 8cm -
Belated trip report from Big Cedar Ridge near(ish) Worland, Wy
RandyB posted a topic in Fossil Hunting Trips
This report is long overdue, but I thought might be worth posting based on the response to the rolling auction items currently up for bid... In the early summer of 2017 my family and I set out on a 7000+ mile roadtrip through 21 states. The trip gave me the opportunity to collect at a couple of famous sites like the Kemmerer's green river formation and wheeler shale in Utah, but one stop combined fossil collecting with some of the most beautiful countryside I've had the opportunity to experience. Big Cedar Ridge is a late cretaceous deposit near Worland, WY. The plant fossils are plentiful but delicate in a light gray matrix, I say "in" rather than "on" because the fossils were the result of a large ash fall that buried the foliage where it stood so the fossils are often in 3 dimensions rather than simply found on horizontal planes. To say it's off the beaten path is an understatement, but it's well worth the effort. Make sure you pay attention to the weather, pack appropriately and make sure your spare tire is in good repair... just in case. We started out early from a bed and breakfast at the base of Devil's Tower (thanks to @minnbuckeye's recommendation). After a 3+ hour drive we got to a spot where I thought the road should be a little past Ten Sleep, but there were no road markers to be found. We went a little further before turning around and taking the unmarked dirt road we initially passed. We didn't see another car once we made the turn so make sure you have everything you need. The drive is 15 miles of dirt roads through BLM cattle grazing land.
- 50 replies
-
- 6
-
-
- big cedar ridge
- cretaceous
- (and 3 more)
-
My husband just received his orders and we’ll be moving to Cheyenne, Wyoming this fall! We’ve spent the past 4 years in England and it has been amazing. We don’t want to leave, but we must. We’re excited about the new assignment, and nervous too. I’m eager to study up on the geology and paleontology of the area! If anyone is from or lives in that area I would greatly appreciate any info on living there. It’s going to be a huge change for us!
-
Advice For Splitting Some Fish (Greenriver)
Mioplosus_Lover24 posted a topic in Fossil Hunting Trips
Hey, I am finally completing my dream-job at the American fish dig quarry!!! I am just looking for some advice from you Greenriver veterans! Any helpful tips, like what I should bring, what I should do, and where the best place too eat is when it is all over! -
I have a 1in long Notogoneus fry from the 18in layer of the Greenriver formation. For reference of the rarity of this specimen, https://www.nps.gov/fobu/learn/nature/fossil-fish.htm I am looking to trade this fish for more fish specifically Mioplosus but, I am open to all fish offers. I will also consider dinosaur material from Kem Kem or Hell Creek. Also sorry for the bluriness of the photos, I will get better pictures up ASAP.
-
I am headed to Kemmerer with my son to look for fossils. I am aware of the quarries in Kemmerer and want to know if there is anything that we should not miss on our road trip or around the area. We have 5 days to explore. Thank you!
-
Found this odd rock , initially thought someone painted on it but the blue grey color appears to be natural , Found in wyoming along the road waking to the post office
-
I was sorting through my collection from decades ago. I have these teeth from the Lance Cr formation. I always assumed they were Triceratops but haven't found any confirmation. They don't match the photos on the internet. So I thought I would ask the experts.
-
The dino bone was purchased in Wyoming. Is it the skin impression on the bone surface? Thanks!
-
I have had these and others in my collection for about 27 years, most of them have been wrapped up or still are wrapped up since I collected them with my son. I always classified them as Ripple Marks, but wonder if they are, we collected them a little to the West of Sundance, Wyoming in exposure that is supposed to be from the Upper Jurassic / Morrison Formation. What is your opinion?? Top of Plate Bottom of Plate
-
Hey all, I found these over the summer in Wyoming's lance formation (Maastrichtian, upper cretaceous). I was hoping for some input on these specimens. First I believe is a small champsosaur vert, the front has a piece chipped off, but it measures 7 mm front to back and about 11 mm wide. Second I'm not so sure on, it's vaguely shaped like a coprolite which would be nice and would make it the second I found on this trip. It seems like it may be geologic. It measures 3.5 cm from top to bottom and has a diameter of about 1 cm.
-
This spring break (March 17th-23rd) my girlfriend and I are planning a trip in Utah, Wyoming, and Colorado. It looks like most of the big dig sites are closed for the season, which was a disappointment for us to see. The tentative plan was to go through Kemmerer from Salt Lake (home,) and hit the digs sites there, go through Vernal to the Quarry and the Prehistoric Museum there, then to Dinosaur National Monument in Colorado with a possibility of hitting Price Utah and the Cleveland Lloyd Quarry on the way back. Without any of the digs open, it seems like we're just trying to find simple things to kill our time, but we'd rather be out doing more engaging fossil hunting or learning. Does anyone have recommendations for areas somewhere nearby where our travels will take us? Any suggestions for digs, museums, cool fossil shops, or even just pretty places to camp are all welcome and greatly appreciated!
-
A freebie to me. Common I’m sure, but what is it? From Parachute Creek I think. Yes, committed the cardinal sin, no scale. It’s around 8cm. @Fossildude19
- 8 replies
-
- 2
-
-
- fish
- parachute creek
- (and 1 more)
-
Hey everyone! Even though we are well into 2019 I thought I should share my top ten finds of the year. These will not be ranked as each one has their own value to me although some are rarer than others. Let me know if you want a better view of any of the fossils. 1. Bird Talon (Hawk or other raptor), Peace River, Florida.
-
From the album: Fluorescent Petrified Wood
Petrified Wood viewed under short-wave ultraviolet light Eocene Blue Forest, Wyoming -
From the album: Fluorescent Petrified Wood
Petrified Wood viewed under short-wave ultraviolet light Eocene Blue Forest, Wyoming -
From the album: Fluorescent Petrified Wood
Petrified Wood viewed under short-wave ultraviolet light Eocene Blue Forest, Wyoming -
Real or fake: Insect from Wyoming
FrostbyteFossils posted a topic in Is It Real? How to Recognize Fossil Fabrications
This small 'insect' was purchased from a thought-to-be trusted seller at a shop close to where I live. I have been a little sceptical and was wondering what an expert's opinion may tell me. Is it a fabrication? Is it real, just badly preserved?
- 46 replies
-
- 1
-
-
- identification
- insect
- (and 1 more)
-
I got this worn theropod tooth a little while ago. It's labeled as Nanotyrannus from the Lance Formation, Weston County, Wyoming. However, it looks a bit odd compared to other Nano teeth I've seen. Is it a tip from a larger tooth? Can it even be identified when this worn? Have at it Scale is in centimeters
-
I'm trading a bunch of fossils mainly from Utah and Wyoming but some other locations as well. In return I'm looking for theropod teeth, ammonites, trilobites, crabs, gastropods, and more shark teeth or anything else that's interesting. You can reply here directly or PM me. I'll post another set some time later this week. Here is the assortment. Wyoming Knightia (Green River Formation, Eocene) Assortment of brachiopods, a crinoid holdfast in the middle, and pyritized worm burrows from Paulding Co, Ohio (Silica Shale, Devonian) Fossilized Great White tooth from Cape Town Another Great White: Knightia Elrathia kingii (Wheeler Shale Utah, Cambrian) The following Wyoming Knightia (Green River Formation, Eocene) Some are in better condition. There's a couple that haven't been completely prepared. I know some of you like to prepare your own fossils: Elrathia kingii More Paulding Ohio fossils (horned corals and brachiopods): A Phareodus scale: Another Great White: A St. Mary's formation Chesapecten conglomerate from Calvert Cliffs, MD:
