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Showing results for tags 'middle miocene'.
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From the album: My Echinoid Collection
Ova sp. Mykolaiv Sands, Fore-Carpathian Depression Middle Miocene (16-11 Ma) Gleboviti Locality, Roztocze Hills, Ivano-Frankivsk Oblast, Ukraine Acquired from online, August 2023 I had previously identified these as Schizaster sp., but I realized a short while later that the larger specimen only has two large gonopores, and while the one in matrix has an incomplete apical disc, it looks as if it may have those same two large gonopores. Therefore I'll consider them Ova sp. for now, the larger one seems to have the complete lateroanal fasciole from what little I can see. These come from the same beds that have plentiful spine-coated Echinocardium leopolitanum. One specimen has some spine preservation on the oral surface, while the other one in matrix has some spines along the anterior edge, as well as seemingly on much of the oral surface as well, based on a small crevice located in the sandstone that exposes some of them.-
- sea urchin
- spines
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From the album: My Echinoid Collection
Echinolampas sp. Ternopil Beds, East European Platform(?) Middle Miocene (16-11 Ma) Unknown Oblast, Ukraine Acquired from online, August 23 My source on Ukrainian echinoids had no info on this specimen other than it seemingly came from the Ternopil Beds, and I have not found any reliable source of information online as to what species this could be. The only thing I could find was a mention of a different undescribed specimen of Echinolampas; however, it was very rounded (not unlike the Oligocene Echinolampas aldrichi from North Carolina), and not laterally compressed and elongated like this one. I wonder if this is a different undescribed species from that one. It measures around 6.6 cm (2.6 inches) long, and around 4.4 cm (1.725 inches) wide. The oral surface is depressed slightly inwards towards the peristome. It seems that the oral surface was prepared with vinegar due to a faint smell, although fortunately it doesn't seem to have suffered much acidic damage. -
From the album: My Echinoid Collection
Clypeaster scillae Weissenegg Formation Middle Miocene (16-11 Ma) Retznei Quarry, Retznei, Styria, Austria Acquired from a collector during a local trade show, September 2023 While this specimen is ever so slightly crushed, it is also unusually laterally compressed, and the aboral surface is heavily deformed, while the oral surface is mostly normal. Thus, to me it appears to be a pretty pathological specimen.-
- weissenegg formation
- retznei
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From the album: My Echinoid Collection
Clypeaster gipplandicus Bairnsdale Limestone Middle Miocene (16-11 Ma) Nowa Nowa, Victoria, Australia Acquired from a collector during a local trade show, September 2023 This specimen has some nice plate division, but most of the apical disc is missing. This specimen is almost twice the size of my first specimen of this species.-
- bairnsdale limestone
- victoria
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From the album: My Echinoid Collection
Psammechinus dubius Ternopil Beds, East European Platform Middle Miocene (16-11 Ma) Bliche-Zolote, Chortkiv Raion, Ternopil Oblast, Ukraine Acquired from online, August 2023-
- ukraine
- ternopil beds
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From the album: My Echinoid Collection
Brissus unicolor Ternopil Beds, East European Platform Middle Miocene (16-11 Ma) Bliche-Zolote, Chortkiv Raion, Ternopil Oblast, Ukraine Acquired from online, August 2023 -
From the album: My Echinoid Collection
Parascutella gibbercula Ternopil Beds, East European Platform Middle Miocene (16-11 Ma) Stare Porichchya, Kolomyia Raion, Khmelnytskyi Oblast, Ukraine Acquired from online, July 2023 While most of the Parascutella gibbercula I've received come from the Ternopil Oblast, according to my source of them these detailed, "textured" specimens come from the Khmelnytskyi Oblast instead. This is probably my most detailed one I've acquired to date.-
- echinoid
- echinoidea
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Hi all, I have a mostly intact pelvic bone of a large camel species. Unfortunately, it was found just and inch or two below the surface in a quite soft sandstone that was mostly sand. As a result the side closest to the surface is in quite poor shape, especially near the obturator foramina. I have used paraloid B-72 throughout the prep to give some strength to the bone and some superglue in the larger cracks, but as I have removed most the matrix, this is quite the fragile piece. Any suggestions on how best I can proceed? I know paraloid isn’t best for heavy weight and I don’t want to paint superglue all over it-unless that’s what’s needed.
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- pelvis
- middle miocene
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I have a snail here from the Middle Miocene Chipola Fm of North Florida. I thought I knew its ID, but I recently looked at it again. I thought it was Xancus chipolanus (Dall). Can anyone here help with an ID?
- 10 replies
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- n. florida
- alum bluff group
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Hi, This skull (photographed on display at a museum in China) is labeled on Wikimedia Commons as Zygolophodon, but it's unclear what species of Mammutidae it represents. It could be an Asian species of Zygolophodon, or it could be Miomastodon gobiensis or another Asian Miomastodon species. Anyone curious what species the skull represents?
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- zygolophodon
- miomastodon
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Here is what you may find during an 8 hour tour at sharkriver located in Monmouth county,N.J. The water here is a little deeper and the fossils may be less than a Cretaceous Brook.
- 8 replies
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- late eocene
- middle miocene
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My first visit to Fossil Beach at Mornington Victoria today. I found this piece of fossilised coral. I know the finds from this area date to the Middle Miocene period (10-15 million years old) but I was curious as to whether this would date from that period too?
- 8 replies
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- middle miocene
- mornington peninsula
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The Chesapeake Group has at least 16 different species of otoliths (from bony fish) that fossilized. I still have at least a thousand otoliths left to sort. So far I only have five different species (I think). I have already searched over a thousand otoliths in material brought back in just four trips to this middle Miocene (Calvert formation) site. Here are pictures of the five. If I find any additional species I will post them. 1. Micromesistius cognatus (a genus of cods) 2. Trisopterus sculptus (a genus of cods) 3. Genyonemus sp. (a croaker) 4. Pogonias sp. (a black drum fish) 5. Sciaenops sp. (a red drum fish)
- 29 replies