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Showing results for tags 'eocene'.
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Split specimen from Green River in WY. Fossil seen in between layers.
Vaniman posted a gallery image in Member Collections
From the album: Priscacara
This specimen is from the Green River formation in Wyoming. Found split in two, unfortunately. These images show a before and after prep job using a Vaniman mobile Problast sandblaster. The specimen is a Priscacara from the Eocene period.-
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Split specimen from Green River in WY. Fossil seen in between layers.
Vaniman posted a gallery image in Member Collections
From the album: Priscacara
This specimen is from the Green River formation in Wyoming. Found split in two, unfortunately. These images show a before and after prep job using a Vaniman mobile Problast sandblaster. The specimen is a Priscacara from the Eocene period.-
- eocene
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Split specimen from Green River in WY. Fossil seen in between layers.
Vaniman posted a gallery image in Member Collections
From the album: Priscacara
This specimen is from the Green River formation in Wyoming. Found split in two, unfortunately. These images show a before and after prep job using a Vaniman mobile Problast sandblaster. The specimen is a Priscacara from the Eocene period.-
- eocene
- fossilprep
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Split specimen from Green River in WY. Fossil seen in between layers.
Vaniman posted a gallery image in Member Collections
From the album: Priscacara
This specimen is from the Green River formation in Wyoming. Found split in two, unfortunately. These images show a before and after prep job using a Vaniman mobile Problast sandblaster. The specimen is a Priscacara from the Eocene period.-
- eocene
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[ Inclusion Inside Baltic Amber ] Pseudoscorpion + Enhydros ( "running water" ). Rare but not extremely rare.
vermiculosis posted a topic in Micro-paleontology
Dear friends, i hope i am not boring with my amber passion Its real obsession for me This time i'd like to show wonderful, i can say - almost perfect Pseudoscorpion ( False Scorpion ). People thinks often that is extremely rare but its not. I had i think about 30 pieces in career. Often they are very small, even only 1mm. This one had 2mm in max with body and pedipalps. What is interesting - do you see that drop inside ambdomen ? It was Enhydros "running water" but there is huge discussion in amber inclusion market what exactly it is. One side ( with me ) think that is running drop of water inside air sap. Second side think that is moving air bubble. Please check my movie from yt - i showed other amber with very nice Enhydros. I am sorry for the music - if someone got soft ears, turn off sound. For me logical is drop of water. What do you think about it ? If we talk about picture colours - i was playing with lights. Best one in friends opinion ? Cheers from Poland. Artur -
Asterotrygon maloneyi Carvalho, Maisey & Grande 2004
oilshale posted a gallery image in Member Collections
From the album: Vertebrates
Asterotrygon maloneyi Carvalho, Maisey & Grande 2004 Middle Eocene Kemmerer Wyoming USA-
- asterotrygon
- eocene
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Taxonomy from Smith 2009. Diagnosis from Smith 2005, p. 222: "Differs from G. longicaudus Kuhn, 1944 in lacking a strong ventral expansion of the coronoid and in having a clavicle whose ventromedial expansion is most extensive at the level of the clavicular fenestra rather than dorsolateral to it. Differs from G. grisolli Augé, 2005 in having a broader nasal spine of the premaxilla and a weaker and more rounded subdental shelf anteriorly on the dentary. Differs from G. lamandini (Filhol, 1877) in having a more restricted Meckelian groove, a more delicate anteromedial process of the coronoid, and distinct anterolateral and posterolateral processes of the coronoid." Identified by Dr. Krister Smith, Senckenberg Research Institute. References: Smith, K. (2009) Eocene lizards of the clade Geiseltaliellus from Messel and Geiseltal, Germany, and the Early Radiation of Iguanidae (Reptilia: Squamata). Peabody Museum of Natural History Yale University Bulletin, 50(2), October 2009: 219-306. Smith, K. (2016) The squamation of the Eocene stem-basilisk Geiseltaliellus maarius (Squamata: Iguanidae: Corytophaninae) from Messel, Germany. SALAMANDRA 53(4) 519–530.
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- eocene
- geiseltaliellus
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Prepped by transfer method found in: Toombs, Harry; Rixon, A. E. (1950). "The use of plastics in the ‘transfer method’ of preparing fossils". The Museums Journal. 50: 105–107. Picture 1: Body. Picture 2: Close up of skull and ear. Four bat genera with a total of 8 species are currently known from Messel: Palaeochiropteryx tupaiodon; Palaeochiropteryx spiegeli; Archaeonycteris trigonodon; Archaenycteris pollex; Trachypteron franzeni; Hassianycteris messelensis; Hassianycteris magna and Hassianycteris? revilliodi. The genus Palaeochiropteryx is the most common and smallest bat from Messel with a wingspan of around 26 to 29 cm. Archaeonycteris is rarer and somewhat larger, the wingspan is about 37 cm. The largest bat in Messel is Hassianycteris magna with a wingspan of almost 50 cm. Taxonomy according to Fossilworks. Diagnosis for Hassianycteris messelensis is from SMITH & STORCH, 1981: “Overall size large (Tab. 1); dental formula I 2/3 C 1/1 P 2(3)/3 M 3/3 = 36 (38), first upper premolar (P 2/ ) absent in messelensis n. sp. and reduced to a tiny spicule in magna n. sp.; third lower premolar (P /4) not molariform, metaconid lacking and taloned short; dentition massive and high; naso-maxillary branch of premaxillary moderately broad, palatal branch not well developed, premaxillaries not fused; nasals long; phalangeal formula (manus) 2, 2, 3, 3, 3; index finger not terminating with claw; fifth metacarpal markedly short compared to third and fourth metacarpals; radius extremely long and characteristically bowed.” Identified by SMITH & STORCH, 1981 (reference number Forschungsinstitut Senckenberg SMF 80/1381; this is one of the paratypes in their publication). Reference: Smith, J. D. & Storch, G. (1981): New Middle Eocene bats from “Grube Messel” near Darmstadt, W-Germany. Senckenbergiana biologica, 61 (3/4): 153-167. Richter, G. & Storch, G. (1980): Beiträge zur Ernährungsbiologie eozäner Fledermäuse aus der "Grube Messel". Natur und Museum, 110 (12), p. 353-367.
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Crassostrea Gigantissima, the giant oyster
MeargleSchmeargl posted a topic in General Fossil Discussion
On Wednesday, relatives have invited me to accompany them to Shell Bluff along the Savannah River, home to the Dry Branch formation which is late Eocene (approx. 38 MYA) in age. This formation is home of an oyster bed, but not just any old oysters: Enter Crassostrea Gigantissima, a YUGE prehistoric Oyster that can grow a whopping 20 inches long. That's almost as long as my forearm! So how much do you guys know about these behemoths?- 11 replies
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- eocene
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From the album: Fossils from Brunswick Co., NC
unifascia carolinensis, Castle Hayne Form., Eocene, Brunswick Co., NC -
From the album: Fossils from Brunswick Co., NC
Aturia, Castle Hayne Form., Eocene, Brunswick Co., NC-
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- castle hayne form
- eocene
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From the album: Fossildude's Purchased/Gift Fossils
An auction site find - multi fish plate. A school of Gosiutichthys parvus. Green River Formation Middle Eocene Wyoming These are Gosiutichthys parvus. The largest fish on the plate measures about 2.25 inches in length.- 7 comments
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- eocene
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Shell preservation.
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- crassatella
- eocene
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One of the few items in my collection which was not self-collected. Given to me by another forum member. The location this was collected from is now paved over and has been closed for close to 2 decades. A rare find even at that site. Once known as Santeelampas oviformis, Kier (1980) assigned this to his early Biozone. Known from only a very small handful of sites in North and South Carolina's Castle Hayne, Warley Hill and Santee Limestone Formations. One of the intriguing things about this echinoid is the lack of matrix inside of the test. You can see this in the first (featured) photo of the periproct. The light inside is what is seen through the paper-thin test. References: Kier, 1980. The Echinoids of the Middle Eocene Warley Hill Formation, Santee Limestone and Castle Hayne Limestone of North and South Carolina. Smithsonian Contributions to Paleobiology, Number 39. Pg. 30. Plate 9: figures 1-8
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- castle hayne formation
- echinoid
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From the album: Pyrenees forams
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- assilina exponens
- eocene
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From the album: Pyrenees forams
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- assilina exponens
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From the album: Pyrenees forams
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- assilina exponens
- eocene
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From the album: Pyrenees forams
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- assilina exponens
- eocene
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From the album: Pisces
3cm. Eocene. From the Phosphate Beds at Qued Zem, Khouribga, Morocco. -
From the album: Pisces
2cm. Eocene. From the Phosphate Beds at Qued Zem, Khouribga, Morocco. -
Cheek tooth from the theridomyid rodent Isoptychus sp. Collected through screen washing of matrix from the 'White Band' a shallow freshwater lacustrine horizon.
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- bouldnor formation
- cenozoic
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From the album: Echinodermata
5x4.5cm. From the Eocene Inglis Formation at Inglis, Florida. Thanks to Dan Woehr for the gift! -
From the album: Marine Mammals
Basilosauridae ident. Lower P2 Premolar Found in Dakhla, Morocco Dated Bartonian Stage of Eocene (≈40 mya) Measures 5.715 cm (2.25 inches)-
- archaeocete
- basilosaur
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