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Wyoming Amber (Hanna Fm., ~57-56 Ma)
Barrelcactusaddict posted a gallery image in Member Collections
From the album: Fossil Amber and Copal: Worldwide Localities
Field Collection: June 12-15, 2022 "Glory Hole" Site Hanna Basin Carbon County, WY Hanna Formation (~57-56 Ma) Deposit: *While amber is found throughout the Hanna Basin, only one site is known to yield large pieces of clear, stable amber: the locality known as "Glory Hole" is located within the north-central section of the Hanna Basin, in south-central Wyoming; exposures are positioned about 8,500 ft. above the base of the Hanna Fm., and at an elevation of roughly 8,900 ft. above sea level. Extensive layers of lignite and carbonaceous (lignitic) mudstone host abundant plant fossils and amber; the matrix is fissile (easily separated into thin layers) and friable (crumbly). Physical weathering (freeze-thaw, wind erosion, thermal expansion, etc.) of the exposures has created an expansive area of disintegrated substrate. This particular site was once a watery paleoenvironment, characterized by shallow swamps. At the very top of the bluff are layers of fissile, light-colored shale referred to as the "Upper Lacustrine Unit" of the Hanna Fm. Amber: *Occurring as small droplets, runs, and globular masses, much of the amber is transparent and of a reddish-orange color throughout, with some containing plentiful internal fractures. The intact, non-fractured amber is very hard, measuring 2.5-3.0 on the Mohs scale, being generally harder than Dominican and Chiapas ambers. It is very fragile and fractures easily, but takes a high, glassy polish like Myanmar amber. Through PyGC-MS, the amber is shown to come from a cupressaceous source tree, and is extremely similar chemically to cretaceous amber from the Raritan Fm. in New Jersey. Of several hundreds of pieces collected by some of the authors, et al., of the cited publication, prepared, and studied at the American Museum of Natural History, only one contained a single insect inclusion: a wingless thrips (1.1mm) that was heavily-compressed and deformed due to geologic forces. From my time at the site, I observed that much of the in-situ amber, especially large pieces, was concentrated within a short horizon only a couple feet in depth. It was especially common near buried, coalified remains of branches and logs, and matrix layers containing numerous leaf remains (mostly cupressaceous). Additionally, I've noticed that some of this material is fairly phosphorescent when exposed to longwave UV light. Minerals and Fossils: While collecting at the site, I noticed several other interesting features besides the amber I sought: carbonized leaves were present in some of the separated matrix layers, petrified wood was present in-situ and eroded from the matrix, and transparent gypsum crystals (some being relatively large) were commonly exposed along the site's surface. Also found in-situ were coalified twigs, branches, logs, and even stumps; I had partially uncovered a few such logs in my shallow excavations (6-12" deep) for amber. I observed a few stumps (~15" diameter) still preserved in an upright position, perpendicular to the matrix layers, with the majority of the lignitic remains buried beneath the surface. Recovered from coarse-grained sandstone originating from above the lignite deposits, was a partial angiosperm leaf imprint with distinct veins. Significance of Hanna Basin Deposits: *Throughout the Hanna Basin, amber is found in various quantities, physical conditions, sizes, and ages: the age range of the ambers' host strata sequence ranges from Late Cretaceous to Late Paleocene (76-56 Ma), an unprecedented range among all the world's known amber deposits. A stratigraphic interval more than 5 miles thick separates the highest and lowest occurrences of amber within the Hanna Basin. Paleocene amber is very rare, with only a handful of significant deposits in the world, notably from the Paris Basin and 5 localities in Switzerland. Source: * "Amber from Upper Cretaceous through Paleocene strata of the Hanna Basin, Wyoming, with evidence for source and taphonomy of fossil resins"; Rocky Mountain Geology, Vol. 35, No. 2, pp. 163-204, December 2000; David A. Grimaldi, Jason A. Lillegraven, Thomas W. Wampler, Denise Bookwalter, and Alexander Shedrinsky© Kaegen Lau
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Hey everyone! I was wondering about 2 Amber specimens with inclusions that I've had for a while now. I tested both in salt water and acetone and both passed (Both Float in the salt water and both were not affected by the acetone) but I wanted to know what you think. I'll include close ups, regular and under UV light photos of both..png.d9aa3d75a4c3f6681bb05277188f38a6.png)
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BVP Fieldschool to Poland (09/07/2022 - 17/07/2022)
ziggycardon posted a topic in Fossil Hunting Trips
Hi everyone! I have just returned from a fieldschool to Poland which was organized by the BVP (Belgium Society for Paleontology) in association with the Universities of Opole and Gdansk. The fieldschool started on the 9th july and ended on july 17. The first 2-3 days of the trip took place in the historic city of Gdansk which lies by the Baltic Sea where the main focus was on Baltic Amber. This included lectures, workshops, a small museum tour and some trips to the beach in search for amber. For the 2nd part of the trip we travelled to the south towards Opole and more specifically the Jurapark and digsite in Krasiejow where we had multiple lectures, workshops, and fieldwork in both Krasiejow and other quarries in the area. So in this topic I wanted to make a day by day report on this amazing trip and experience. Since we travelled by car I only returned yesterday evening so most of the finds still have to be photographed/prepped so expect them somewhere at the end of this topic (which might also take a few days to complete.)
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I don't know if I'm posting this in the right place but I figured I'd show off my collection. I don't have many of my own finds cleaned up enough so I'll start with the ones I have bought or have been gifted. I don't have much, but I'm proud of what I do have (except that spino tooth). Note: I just figured out how the label pictures. If I made any mistakes please let me know. Zarafasaura oceanis Zarafasaura oceanis (Unknown fish jaw) Prognathodon Spinosauridae Amber with ants in it (I got it at a gift shop back in 2017 and have no information about it)
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Anyone know much about locality 34? Not sure if anyone has made expeditions there or how one can access the area. Any input is greatly appreciated!
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Hi, just looking for a little help identifying this beetle in Dominican amber. Any ideas? Thanks in advance!
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I have had these rocks around for years and I don’t even remember where they came from. Likely I found them Missouri, but I originally presumed it was amber which wouldn’t be a Missouri find. I did the salt water float test and they sank to the bottom. Could these simply be quartz? What I am most curious about is the circular relief formation seen on the top stone in the picture. The two images are of the top and bottom.
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Hello, I am hoping for some input regarding some recent rock finds in an area recently exposed after heavy rains & flooding. I will probably split them up over a couple of posts. Appreciate any help in understanding these rocks. Location: Vestavia Hills, AL Paleozoic (from Ordovician to Pennsylvanian) Rock 1: Object just left of center- Bivalve? Trilobite? Rock 1: dark areas are moss - creating a bit of an optical illusion in the photo. Rock 1: close up of area on top right of rock 1, Shiny brown with white outline with some type of inclusion. Rock 1: close up of brown shiny area with white outline on front side. Resin? Rock 2: Weathered Bivalve? Rock 2: Different viewRock 2Rock 2: Backside Rock 3: could this be part of a trilobite?Rock 3Rock 3Rock 1: sorry I can’t figure out how to move photo to the rest of the photo group
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Hi, Would some folks mind PMing me reputable places to buy fossils online? I also have a particular site in mind and would like to see if it's legit as well. Thanks a lot
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Late Cretaceous Amber in Woodbine Group in Grayson County, North Central Texas
Oxytropidoceras posted a topic in Fossil News
Friedman, V., Lambert, J.B., Contreras, T.A., Stout, E., Kaur, S. and Mitamura, H., 2018. Late Cretaceous Amber in Texas: chemical characterization and paleoenvironment. Life: The Excitement of Biology, 5(3), pp.132-154. Publications of Virginia Friedman Friedman, V., Lambert, J.B., Burgarin, A., Kuar, S. and Stout, E, 2020. Amber in Texas (abstract). Conference: International Amber Symposium "Amber, Science and Art". Gdansk, PL 2018. Friedman, V., Vega, F. J.,Serrano, M., and Lourdes, D., 2019. Upper Cretaceous Texas Amber: Its first biological inclusions (abstract). Conference: 8th International Conference on Fossil Insects, Arthropods, and Amber At: Santo Domingo, Dominican Republic April 7-13, 2019 Friedman, V., and Hunt, A. P., 2004. Fossil Pearls from the Upper Cretaceous of Texas (abstract). Geological Society of America, annual Meeting, Denver, Colorado. Yours, Paul H.-
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Hi all. I believe I’ve found some Petrified Wood encased in Amber. But I can’t be sure. So I’m asking the pros. Please look at the photos and helps me identify what I have found. I was found in Lake Country British Columbia Canada in Lake Okanagan. I was wading along the shore looking for interesting rocks when my sisters dog pulled this from the lake. I couldn’t believe my eyes. Anyway, and help identifying this would be great. Thanks.
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Hello, This is my first post I found this forum while looking for help id'ing a large chunk of an unknown crystal like substance I found kayaking. Backstory... (Photos at bottom of post) Today I was kayaking in coastal waters in northeast Florida. This is saltwater, marshy, lots of pine, Cyprus, cedar trees on higher ground. While paddling near the bank I noticed a strangely shaped rock and decided to check it out. About 3/4 the size of a basketball with 2 holes similar to those in a bowling ball. Used a pair of needlenose pliers to inspect before I put my fingers in (plenty of things that could be living in there that I didn't want to interact with). As soon as the pliers made contact I could tell it was not rock, more of a glass feel. With some prying (attempting to free from muddy bottom) a piece broke off and immediately I was certain it was not rock, but the piece did not sink like glass. Also it smells like pine sap if that helps.
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From the album: My collection in progress
Mastigusa sp. Menge 1854 Location: Sambian Peninsula, Kaliningrad Oblast Age: 56-34 Mya (Eocene, Paleogene) Measurements: 2,1x1,8 cm (amber), 5 mm (length of spider) Kingdom: Animalia Phylum: Arthropoda Subphylum: Chelicerata Class: Arachnida Order: Araneae Suborder: Opisthothelae Family: Hahniidae -
From the album: My collection in progress
Machilidae unidentified sp. Grassi 1888 Location: Rivne Oblast, Ukraine Age: 56-34 Mya (Eocene, Paleogene) Measurements: 2,8x2,5 cm (amber), 1,7 cm (length of bristletail) Kingdom: Animalia Phylum: Arthropoda Subphylum: Hexapoda Class: Insecta Subclass: Monocondylia Order: Archaeognatha Suborder: Machilida Family: Machilidae -
From the album: My collection in progress
Lithobiidae unidentified sp. Newport 1844 Location: Sambian Peninsula, Kaliningrad Oblast, Russia Age: 56-34 Mya (Eocene, Paleogene) Measurements: 1,9x1,1 cm (amber), 1,1 cm (length of centipede) Kingdom: Animalia Phylum: Arthropoda Subphylum: Myriapoda Class: Chilopoda Order: Lithobiomorpha Family: Lithobiidae -
The last (for now) addition to my fossil collection consists of three amber pieces from Baltic and East Europe. They're dated to Eocene.
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Hi everyone! I am looking for advice on a UV-flashlight. Next month I am going on a field trip to Poland with my fossil club. The first few days of the trip are in Gdansk where we will go and look at the cutting and preparation process of raw baltic amber, but we will also have the possibility to go search for amber at night. The club recommended to bring our own UV-flashlight and I am planning to purchase one but I have a hard time finding what the requirements of such flashlight are if I am planning to use it for searching amber. Does anyone have any tips what I should look for in a UV flashlight model or does anyone have some good recommendations? Thank you in advance!
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Hi, I would really appreciate any advice on the following. I recently bought a set of amber on a well-known auction site (sent from Lithuania). I have read up on how to test for authenticity and did a salt water test, the amber floated- so I guess all good there. I then burnt one, it released a nasty chemical/kerosene smell. Is there anything else I can do to check for authenticity? I bought the amber as a graduation gift for my students, so would hate the idea of giving them a piece of plastic! All advice appreciated.
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Dinosaur, Reptile, and Amber Collection UPDATE: Shelf #3!
Mousehead posted a topic in Member Collections
Things are getting pretty serious over in The Fossil Zone, so I cleared off a few books and replaced them with fossils. Who needs to read, anyway? Feel free to ask questions about particular pieces. Whole collection: The turtle skull is real, but the surrounding matrix has been stained by the preparator for better visibility. Some here might recognize the new claw that arrived broken in the mail There is a Vinctifer comptoni fish on the back right, along with a negative Grallator footprint, which I can't seem to find a good way to display. New additions here include a croc/turtle egg in-matrix, a Campo del Cielo meteorite, and a few various claws. There's also a piece of the Roman Colosseum, whose origin story I should not divulge. A complete Psittacosaurus foot joins the family. To its immediate left is a Triceratops frill spike. My best-prepared fossil here is the Ichthyosaur rib plate on the right – just incredible work. The little Knightia in the front reminds me every day I need to get a really good fish fossil soon. Amber Time! My favorite time. Rarer inclusions are a mushroom, pill pug, a gigantic damselfly, triple crane flies, a large millipede, caterpillar, a bloated tick/mite, moth with perfect wings, and a small lizard claw. More amber! S-shaped Centipede, multiple termites, a gecko tail, a big fuzzy bee (middle center), and my favorite... ...the back half of a lizard stuck to a leaf on the bottom right. Nice view of that killer centipede here as well! I'm gonna need a new shelf soon, but space is limited here in this tiny NYC studio apartment. Thanks for looking, friends!
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I could not find the date I found the attached amber from Lee Creek (about 26 trips). Had misplaced it (in one of my Miscellaneous bins, instead of one of my Lee Creek bins), but finally located it and is 4 inches long and 3 inches wide and a little over an inch high. I wonder how many, if any, inclusions could be inside?
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Hello my dear friends, Well I wanted to show off a recent article with my findings described by professionals. Soon, I will officially have 21 insects with my name/name/ invented name that I have found for science. Of course there were more but patronymic is not always possible. This time one of the beetles was described with the maiden name of my mother and our family. Stagetus szydlowskae. "Etymology. Patronymic, dedicated to mother and the family from the mother's side of Artur Michalski - Anna Michalska (Anna Szydlowska)." Article - https://www.researchgate.net/publication/360066119_Three_new_Ptinidae_Coleoptera_Bostrichoidea_from_Eocene_Baltic_amber Enjoy ! Artur M.
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Dominican Amber (La Toca Fm. [Mamey Group], 20.43-13.65 Ma.)
Barrelcactusaddict posted a gallery image in Member Collections
![Dominican Amber (La Toca Fm. [Mamey Group], 20.43-13.65 Ma.)](//content.invisioncic.com/e327962/monthly_2022_04/small.20220420_212338_resized_resized(1).jpg.7743a4a2a0e1a834bfb134b1544c0aaf.jpg)
From the album: Fossil Amber and Copal: Worldwide Localities
La Toca Mine Cordillera Septentrional Santiago Province, Dominican Republic La Toca Fm. (Mamey Group) 20.43-13.65 Ma Specimen: 7.7g / 51x21x12mm Equipment: Samsung Galaxy S9 Plus BelOMO 10x Triplet Loupe Quantum 140lm LED Penlight 7.5W S11 Incandescent Light There are 9 complete and 2 incomplete Leptomyrmex, averaging 3.5mm in body length. Other prominent inclusions consist of a twig (7mm), spider (2mm), formicine ant (3mm), two muscoid flies (1.5mm), and two nematoceran flies (possible chironomid at 1mm, heavily decomposed mycetophilid at 3mm).© Kaegen Lau
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From the album: Fossil Amber and Copal: Worldwide Localities
La Toca Mine Cordillera Septentrional Santiago Province, Dominican Republic La Toca Fm. (Mamey Group) 20.43-13.65 Ma Specimen: 7.7g / 51x21x12mm Equipment: Samsung Galaxy S9 Plus BelOMO 10x Triplet Loupe Quantum 140lm LED Penlight Dorsal view, 3mm body length; same individual as seen in related images. Contained within same amber piece as contains the Leptomyrmex ants, spider, muscoid and nematoceran flies, twig, and enhydros.© Kaegen Lau
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From the album: Fossil Amber and Copal: Worldwide Localities
La Toca Mine Cordillera Septentrional Santiago Province, Dominican Republic La Toca Fm. (Mamey Group) 20.43-13.65 Ma Specimen: 7.7g / 51x21x12mm Equipment: Samsung Galaxy S9 Plus BelOMO 10x Triplet Loupe Quantum 140lm LED Penlight Lateral view, 3mm body length; same individual as seen in related images. Contained within same amber piece as contains the Leptomyrmex ants, spider, muscoid and nematoceran flies, twig, and enhydros.© Kaegen Lau
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From the album: Fossil Amber and Copal: Worldwide Localities
La Toca Mine Cordillera Septentrional Santiago Province, Dominican Republic La Toca Fm. (Mamey Group) 20.43-13.65 Ma Specimen: 7.7g / 51x21x12mm Equipment: Samsung Galaxy S9 Plus BelOMO 10x Triplet Loupe Quantum 140lm LED Penlight Ventral view of a 3mm long formicine ant; same individual as seen in related images. Unfortunately, the mandibles are partially obscured by a small bubble. Contained within same amber piece as contains the Leptomyrmex ants, spider, muscoid and nematoceran flies, twig, and enhydros.© Kaegen Lau
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![Dominican Amber (La Toca Fm. [Mamey Group], 20.43-13.65 Ma.)](http://content.invisioncic.com/e327962/monthly_2022_04/small.20220420_212338_resized_resized(1).jpg.7743a4a2a0e1a834bfb134b1544c0aaf.jpg)
