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Showing results for tags 'mollusca'.
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I like geology better, so I like to run around my city On this mountain is a Taoist temple. Taoism is the traditional religion of China. But you see, the slope is very steep. This is the Taoist gate, but I'm not here to see it. On the mountain, have two Chinese characters:"道魂". It means the soul of Taois(Of course there are fossils in this big rock, haha). Running to the side of the mountain without temples, I found some mollusks, of course, many of whom I didn't know. I don't know what they are, and I don't know who to ask.- - Of course, I was about 30 meters away from the top of the mountain, and I found something that I didn't know whether it was fossil trees or sedimentary rocks, which confused me-v-. The sun wants to go home, well, I'll go home, too - V -
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- china
- high mountain
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Help request! I am putting together a tool for judging rock age based on very crude, whole-rock, hand-sample observations of fossil faunas/floras -- the types of observations a child or beginner could successfully make. I view this as a complement to the very fine, species-level identifications commonly employed as index fossils for individual stages, biozones, etc. Attached is what I've got so far, but I can clearly use help with corals, mollusks, plants, vertebrates, ichnofossils, and the post-Paleozoic In the attached file, vibrant orange indicates times in earth history to commonly observe the item of interest; paler orange indicates times in earth history to less commonly observe the item of interest. White indicates very little to no practical probability of observing the item of interest. Please keep in mind that the listed indicators are things like “conspicuous horn corals,” purposefully declining to address rare encounters with groups of low preservation potential, low recognizability, etc. Got additions/amendments, especially for the groups mentioned above? Toss them in the comments below! Thank you..... https://docs.google.com/spreadsheets/d/1tVm_u6v573V4NACrdebb_1OsBEAz60dS1m4pCTckgyA
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- biostratigraphy
- cambrian
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- biostratigraphy
- cambrian
- ordovician
- silurian
- devonian
- carboniferous
- mississippian
- pennsylvanian
- permian
- triassic
- jurassic
- cretaceous
- paleogene
- neogene
- paleocene
- eocene
- oligocene
- miocene
- pliocene
- pleistocene
- mollusca
- brachiopoda
- bryozoa
- cnidaria
- arthropoda
- trilobita
- ostracoda
- invertebrates
- vertebrates
- plants
- microfossils
- foraminifera
- chitinozoa
- radiolaria
- diatoms
- algae
- echinodermata
- crinoidea
- echinoid
- sharks
- chondrichthyes
- fish
- tetrapoda
- ammonoidea
- cephalopoda
- ichnology
- gastropoda
- pelecypoda
- crustacea
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Hey everyone! I recently acquired this oyster from Tulear province, Madagascar. The seller has listed it as Rastellum carinatum, but doing any research online, I’ve only found other sellers selling similar fossils. I did come across a Wikipedia article for Agerostrea sp. It appears to be the same shell, and it lists it as occurring in rocks that are Maastrichtian age from Madagascar. Are these the same species just under different names or are they separate? If so, what genus does my specimen belong too? Any response would be greatly appreciated from you guys, we’ll see how challenging this might be to figure out. Thanks again -Nick
- 12 replies
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- jurassic
- cretaceous
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I am having so much trouble finding out what these are. I confident that they are some type of prehistoric oyster but I have yet to find out. Is there anyway some of you guys can help me? IMG_3374.HEIC
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The Pinal Geology Museum (pinalgeologymuseum.org) in Coolidge Arizona has a fossil collection that it would like to donate to a college, university, or museum. There are over 1000 specimens, they are all cataloged and each one has an index card. Most of the samples are small just a few inches in size with a few larger ones. There are mainly brachiopods and corals, but I have not looked carefully at the collection which is in storage. This collection was mader by a collector over a 70 year time period and it was donated to our museum by his family when he passed away. The whole collection would not need to be kept by the recipient, but it is hoped most could be with the collectors name attached to it in recognition of his efforts to put it together.
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Howdy! I have a neat puzzle for the experts today! I know that rostrochonchia are not super easy to find... so I submit the follow picture. Most of the "shelled" creatures I unearth are brachiopods; cincinnetina meeki, Lepidocyclus, Rafinesquina...etc... HOWEVER! this specimen is unique to my collection. Found in northern Cincinnati - Upper Ordovician - The pronounced ridges are different than anything else found. Posted to an Ohio Fossil group, someone with a keen eye made the possibility of Rostroconchia. From my understanding these are not found often. Looking for help in identification. I do not have the tools at hand to remove anymore of the matrix without damage to the remaining fossils in the hash plate... (I have a dremel tools and dental pics...I'm lame) which are neat too. Rostrochonchia or Plaesiomys subquadratus (I compared to these specimens I had) As always, looking for education and conversation.
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Hello, I am a new user and I recently picked up this ammonite fossil at a local rock & fossil shop. I got it for $80, and it has not been worked on much, only one side has been mostly cleared of rock. I have tried to use various sources on the internet and galleries, but I am new to this and have not been able to identify this fossil myself. It is decently large, and about 8-9 inches across at its longest. There are lots of deep ridges in the shell, but each ridge as far as I can tell is uniform, with no protrusions. Unfortunately, I do not know the origin of this fossil, or the type of rock it is in, though it seems to be very soft and break easily. I can provide more information and/or photos as requested. Thanks!
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- 5 replies
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- mollusca
- cretaceous
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This amazing bivalve fossil was a gift. The giver had no info to offer. I am curious about what its origins might be - where/when; about how old it might have been when it died (it is 6 inches across and has several hundred growth ridges); and I would like to understand how fossilization can result in what appears to be a set of perfectly intact valves, complete with so much detail - in other words, the shells are much heavier than living shells would be, what has replaced the calcium bicarbonate to make the shells so much heavier?
- 9 replies
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- mollusca
- mercenaria
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Got it from a friend. This actually should come in one piece and not separated like this. Probably someone split it up so that he/she could see the inside. Probably found in Papua, Indonesia. Please your ID. Thankyou.
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Originally the specimen was collected as a concretion from upper Pierre Shale Formation near the lowest level of the Fox Hills Formation. The collection location is Cedar Creek about seven miles south of Glendive, Montana. The Date collected was Oct. 12, 2018. Later, I removed most of the concretion/matrix with diamond blade and bits. Two of the hoploscaphites spedeni were badly crushed and fractured during fossilization and are missing half of shells. During prep, I miscalculated the depth of cutting blade, slightly damaging the middle scaphites.
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- hoploscaphites spedeni
- late cretaceous
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I was seven miles south of Glendive; Montana on October 12, 2018; time 1400; exploring a drainage cut into the Pierre Shale Formation while looking for concretions. This scaphites was partly exposed on the surface of a concretion. Later, I removed most of the surrounding matrix.
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From the album: Delaware Fossils
Late Cretaceous Scallop Reedy Point (North Side) Spoils Pile MT Laurel Formation Delaware City, Delaware Based on "Cretaceous Fossils from the Chesapeake and Delaware Canal: A Guide for Students and Collectors" by Edward M. Lauginiger -
From the album: Fossil in Matchboxes
Ostrea sp ? Labelled as : Ostrea sp , Lower lias , Waddington , Lincolnshire , UK© D&E
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From the album: Fossil in Matchboxes
Ostrea sp ? Labelled as : Ostrea sp , Lower lias , Waddington , Lincolnshire , UK© D&E
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From the album: Fossil in Matchboxes
Gastropod Bembexia lloydi (Animalia, Invertebrata, Mollusca, Gastropoda) Description: Specimen of a fossil gastropod, Bembexia lloydi, collected from the Much Wenlock Limestone of Silurian, Wenlock, Homerian age from Shadwell Quarry, near Much Wenlock, Shropshire –a county located between West Midlands in England and Wales, UK. It is from the Silurian period (443 - 418 million years ago) Period: Silurian, Wenlock, Homerian, Much Wenlock Limestone Rock: Much Wenlock Limestone© D&E
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From the album: Fossil in Matchboxes
Gastropod Bembexia lloydi (Animalia, Invertebrata, Mollusca, Gastropoda) Description: Specimen of a fossil gastropod, Bembexia lloydi, collected from the Much Wenlock Limestone of Silurian, Wenlock, Homerian age from Shadwell Quarry, near Much Wenlock, Shropshire –a county located between West Midlands in England and Wales, UK. It is from the Silurian period (443 - 418 million years ago) Period: Silurian, Wenlock, Homerian, Much Wenlock Limestone Rock: Much Wenlock Limestone© D&E
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I am currently down to about 100 specimens and will include more pictures when I pull them out of the basement for that purpose. They are heavily traded and many of the better specimens are sought after by collectors and museums. I know that they have been around the Tucson show for more than ten years. Called Mercenaria Permagna with dogtooth calcite spar inclusions. The pit is currently closed but spoil piles are still available to the collector for a fee. More information on this fossil type is available at: SEGS-Guidebook-45.pdf, (State of Florida) online. Or search google images using: "calcite clams".
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- mercenaria
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