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Showing results for tags 'succinite'.
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Sakhalin Amber (Naibuchi Fm., Middle Eocene [~47.8-38 Ma])
Barrelcactusaddict posted a gallery image in Member Collections
From the album: Fossil Amber and Copal: Worldwide Localities
“Sakhalin Amber” Sakhalin Island, Russia Starodubskoye, Nayba River Estuary Naibuchi Fm. (Autochthonous) Middle Eocene (~47.8-38 Ma) Specimen D: 0.3g / 14x8x5mm Lighting: 140lm LED Entry eight of ten, detailing various rare ambers from European, Asian, and North American localities. The island Sakhalin is located in the Far East region of Russia, just north of the island of Hokkaido, Japan. Amber is usually found washed onto the shoreline, near the village of Starodubskoye; it is eroded from coal exposures of the Naibuchi Fm. and carried by the Nayba River, emptying in the Okhotsk Sea. The amber is considered autochthonous (found in original place of formation) or in the case of amber on the shoreline, parautochthonous (carried a relatively short distance from original deposit). Sakhalin amber is a variety of Rumanite which, as has been shown through recent analyses (E.C. Stout, et.al. 2000), is an amber identical or nearly identical to succinite (Baltic amber) that has undergone a high degree of polymerization; significant geological forces (heat, pressure) exerted on the resin during its burial, altered the resin itself and degraded/deformed any biological inclusions contained in the resin. As is often the case with Rumanite, particularly Sakhalin amber, the cavities inside trapped insects are found filled with resin, due to the intense forces the resin was subjected to. Rumanite also has a slightly higher melting point than Baltic amber, at 300-350˚C (as opposed to 250-300˚C). As of 2019, nearly 1,250 insect and arachnid inclusions have been discovered in Sakhalin amber, with aphids and chironomids (non-biting midges) comprising the majority of inclusions; strangely, beetle larvae are more common than their adult forms in this amber. Simetite, as a fresh resin, was believed to have low-viscosity as compared to other ambers; this property made it less likely for animals to become trapped. Interestingly, from a previously-studied collection of Rovno amber, it was found that 23% of all hemipteran inclusions were of the suborder Auchenorrhyncha, namely planthoppers (Infraorder: Fulgoromorpha, Superfamily: Fulgoroidea) and leafhoppers (Infraorder: Cicadomorpha, Superfamily: Membracoidea), with a 10% finding in Baltic amber, and less than 0.3% in Sakhalin amber: the low rates of occurrence in Sakhalin amber are possibly due to the small size of specimens in general, the low-viscosity nature of the resin, and/or a limited presence of planthoppers and leafhoppers in the ancient forest. Only a single leafhopper specimen has been described from Sakhalin amber. Sources: “First record of Cicadellidae (Insecta, Hemiptera, Auchenorrhyncha) from Eocene Sakhalinian amber”; ZooKeys, Issue 886; Christopher H. Dietrich, Evgeny E. Perkovsky 2019 “Amber Deposits in Romania, with Particular Emphasis on Those Located on the Eastern Side of the Carpathians (Bibliogeographical Considerations and a few Field Investigations)”; Annales d’Université Valahia Targoviste, Section d’Archéologie et d’Histoire, Tome XIX, pp. 33-56; Cârciumaru, et. al. 2017 https://bugguide.net/node/view/12745/tree© Kaegen Lau
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- amber
- autochthonous
- (and 12 more)
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Sakhalin Amber (Naibuchi Fm., Middle Eocene [~47.8-38 Ma])
Barrelcactusaddict posted a gallery image in Member Collections
From the album: Fossil Amber and Copal: Worldwide Localities
“Sakhalin Amber” Sakhalin Island, Russia Starodubskoye, Nayba River Estuary Naibuchi Fm. (Autochthonous) Middle Eocene (~47.8-38 Ma) Specimen B: 0.4g / 17x7x7mm Lighting: 140lm LED Entry eight of ten, detailing various rare ambers from European, Asian, and North American localities. The island Sakhalin is located in the Far East region of Russia, just north of the island of Hokkaido, Japan. Amber is usually found washed onto the shoreline, near the village of Starodubskoye; it is eroded from coal exposures of the Naibuchi Fm. and carried by the Nayba River, emptying in the Okhotsk Sea. The amber is considered autochthonous (found in original place of formation) or in the case of amber on the shoreline, parautochthonous (carried a relatively short distance from original deposit). Sakhalin amber is a variety of Rumanite which, as has been shown through recent analyses (E.C. Stout, et.al. 2000), is an amber identical or nearly identical to succinite (Baltic amber) that has undergone a high degree of polymerization; significant geological forces (heat, pressure) exerted on the resin during its burial, altered the resin itself and degraded/deformed any biological inclusions contained in the resin. As is often the case with Rumanite, particularly Sakhalin amber, the cavities inside trapped insects are found filled with resin, due to the intense forces the resin was subjected to. Rumanite also has a slightly higher melting point than Baltic amber, at 300-350˚C (as opposed to 250-300˚C). As of 2019, nearly 1,250 insect and arachnid inclusions have been discovered in Sakhalin amber, with aphids and chironomids (non-biting midges) comprising the majority of inclusions; strangely, beetle larvae are more common than their adult forms in this amber. Simetite, as a fresh resin, was believed to have low-viscosity as compared to other ambers; this property made it less likely for animals to become trapped. Interestingly, from a previously-studied collection of Rovno amber, it was found that 23% of all hemipteran inclusions were of the suborder Auchenorrhyncha, namely planthoppers (Infraorder: Fulgoromorpha, Superfamily: Fulgoroidea) and leafhoppers (Infraorder: Cicadomorpha, Superfamily: Membracoidea), with a 10% finding in Baltic amber, and less than 0.3% in Sakhalin amber: the low rates of occurrence in Sakhalin amber are possibly due to the small size of specimens in general, the low-viscosity nature of the resin, and/or a limited presence of planthoppers and leafhoppers in the ancient forest. Only a single leafhopper specimen has been described from Sakhalin amber. Sources: “First record of Cicadellidae (Insecta, Hemiptera, Auchenorrhyncha) from Eocene Sakhalinian amber”; ZooKeys, Issue 886; Christopher H. Dietrich, Evgeny E. Perkovsky 2019 “Amber Deposits in Romania, with Particular Emphasis on Those Located on the Eastern Side of the Carpathians (Bibliogeographical Considerations and a few Field Investigations)”; Annales d’Université Valahia Targoviste, Section d’Archéologie et d’Histoire, Tome XIX, pp. 33-56; Cârciumaru, et. al. 2017 https://bugguide.net/node/view/12745/tree© Kaegen Lau
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- amber
- autochthonous
- (and 12 more)
-
Sakhalin Amber (Naibuchi Fm., Middle Eocene [~47.8-38 Ma])
Barrelcactusaddict posted a gallery image in Member Collections
From the album: Fossil Amber and Copal: Worldwide Localities
“Sakhalin Amber” Sakhalin Island, Russia Starodubskoye, Nayba River Estuary Naibuchi Fm. (Autochthonous) Middle Eocene (~47.8-38 Ma) Specimen C: 0.35g / 14x8x6mm Lighting: 140lm LED Entry eight of ten, detailing various rare ambers from European, Asian, and North American localities. The island Sakhalin is located in the Far East region of Russia, just north of the island of Hokkaido, Japan. Amber is usually found washed onto the shoreline, near the village of Starodubskoye; it is eroded from coal exposures of the Naibuchi Fm. and carried by the Nayba River, emptying in the Okhotsk Sea. The amber is considered autochthonous (found in original place of formation) or in the case of amber on the shoreline, parautochthonous (carried a relatively short distance from original deposit). Sakhalin amber is a variety of Rumanite which, as has been shown through recent analyses (E.C. Stout, et.al. 2000), is an amber identical or nearly identical to succinite (Baltic amber) that has undergone a high degree of polymerization; significant geological forces (heat, pressure) exerted on the resin during its burial, altered the resin itself and degraded/deformed any biological inclusions contained in the resin. As is often the case with Rumanite, particularly Sakhalin amber, the cavities inside trapped insects are found filled with resin, due to the intense forces the resin was subjected to. Rumanite also has a slightly higher melting point than Baltic amber, at 300-350˚C (as opposed to 250-300˚C). As of 2019, nearly 1,250 insect and arachnid inclusions have been discovered in Sakhalin amber, with aphids and chironomids (non-biting midges) comprising the majority of inclusions; strangely, beetle larvae are more common than their adult forms in this amber. Simetite, as a fresh resin, was believed to have low-viscosity as compared to other ambers; this property made it less likely for animals to become trapped. Interestingly, from a previously-studied collection of Rovno amber, it was found that 23% of all hemipteran inclusions were of the suborder Auchenorrhyncha, namely planthoppers (Infraorder: Fulgoromorpha, Superfamily: Fulgoroidea) and leafhoppers (Infraorder: Cicadomorpha, Superfamily: Membracoidea), with a 10% finding in Baltic amber, and less than 0.3% in Sakhalin amber: the low rates of occurrence in Sakhalin amber are possibly due to the small size of specimens in general, the low-viscosity nature of the resin, and/or a limited presence of planthoppers and leafhoppers in the ancient forest. Only a single leafhopper specimen has been described from Sakhalin amber. Sources: “First record of Cicadellidae (Insecta, Hemiptera, Auchenorrhyncha) from Eocene Sakhalinian amber”; ZooKeys, Issue 886; Christopher H. Dietrich, Evgeny E. Perkovsky 2019 “Amber Deposits in Romania, with Particular Emphasis on Those Located on the Eastern Side of the Carpathians (Bibliogeographical Considerations and a few Field Investigations)”; Annales d’Université Valahia Targoviste, Section d’Archéologie et d’Histoire, Tome XIX, pp. 33-56; Cârciumaru, et. al. 2017 https://bugguide.net/node/view/12745/tree© Kaegen Lau
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- amber
- autochthonous
- (and 12 more)
-
Sakhalin Amber (Naibuchi Fm., Middle Eocene [~47.8-38 Ma])
Barrelcactusaddict posted a gallery image in Member Collections
From the album: Fossil Amber and Copal: Worldwide Localities
“Sakhalin Amber” Sakhalin Island, Russia Starodubskoye, Nayba River Estuary Naibuchi Fm. (Autochthonous) Middle Eocene (~47.8-38 Ma) Specimen A: 0.5g / 15x9x8mm Lighting: 140lm LED Entry eight of ten, detailing various rare ambers from European, Asian, and North American localities. The island Sakhalin is located in the Far East region of Russia, just north of the island of Hokkaido, Japan. Amber is usually found washed onto the shoreline, near the village of Starodubskoye; it is eroded from coal exposures of the Naibuchi Fm. and carried by the Nayba River, emptying in the Okhotsk Sea. The amber is considered autochthonous (found in original place of formation) or in the case of amber on the shoreline, parautochthonous (carried a relatively short distance from original deposit). Sakhalin amber is a variety of Rumanite which, as has been shown through recent analyses (E.C. Stout, et.al. 2000), is an amber identical or nearly identical to succinite (Baltic amber) that has undergone a high degree of polymerization; significant geological forces (heat, pressure) exerted on the resin during its burial, altered the resin itself and degraded/deformed any biological inclusions contained in the resin. As is often the case with Rumanite, particularly Sakhalin amber, the cavities inside trapped insects are found filled with resin, due to the intense forces the resin was subjected to. Rumanite also has a slightly higher melting point than Baltic amber, at 300-350˚C (as opposed to 250-300˚C). As of 2019, nearly 1,250 insect and arachnid inclusions have been discovered in Sakhalin amber, with aphids and chironomids (non-biting midges) comprising the majority of inclusions; strangely, beetle larvae are more common than their adult forms in this amber. Simetite, as a fresh resin, was believed to have low-viscosity as compared to other ambers; this property made it less likely for animals to become trapped. Interestingly, from a previously-studied collection of Rovno amber, it was found that 23% of all hemipteran inclusions were of the suborder Auchenorrhyncha, namely planthoppers (Infraorder: Fulgoromorpha, Superfamily: Fulgoroidea) and leafhoppers (Infraorder: Cicadomorpha, Superfamily: Membracoidea), with a 10% finding in Baltic amber, and less than 0.3% in Sakhalin amber: the low rates of occurrence in Sakhalin amber are possibly due to the small size of specimens in general, the low-viscosity nature of the resin, and/or a limited presence of planthoppers and leafhoppers in the ancient forest. Only a single leafhopper specimen has been described from Sakhalin amber. Sources: “First record of Cicadellidae (Insecta, Hemiptera, Auchenorrhyncha) from Eocene Sakhalinian amber”; ZooKeys, Issue 886; Christopher H. Dietrich, Evgeny E. Perkovsky 2019 “Amber Deposits in Romania, with Particular Emphasis on Those Located on the Eastern Side of the Carpathians (Bibliogeographical Considerations and a few Field Investigations)”; Annales d’Université Valahia Targoviste, Section d’Archéologie et d’Histoire, Tome XIX, pp. 33-56; Cârciumaru, et. al. 2017 https://bugguide.net/node/view/12745/tree© Kaegen Lau
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- amber
- autochthonous
- (and 12 more)
-
Sakhalin Amber (Naibuchi Fm., Middle Eocene [~47.8-38 Ma])
Barrelcactusaddict posted a gallery image in Member Collections
From the album: Fossil Amber and Copal: Worldwide Localities
“Sakhalin Amber” Sakhalin Island, Russia Starodubskoye, Nayba River Estuary Naibuchi Fm. (Autochthonous) Middle Eocene (~47.8-38 Ma) Specimen A (Top Left): 0.5g / 15x9x8mm Specimen B (Top Right): 0.4g / 17x7x7mm Specimen C (Bottom Right): 0.35g / 14x8x6mm Specimen D (Bottom Left): 0.3g / 14x8x5mm Lighting: Longwave UV Entry eight of ten, detailing various rare ambers from European, Asian, and North American localities. The island Sakhalin is located in the Far East region of Russia, just north of the island of Hokkaido, Japan. Amber is usually found washed onto the shoreline, near the village of Starodubskoye; it is eroded from coal exposures of the Naibuchi Fm. and carried by the Nayba River, emptying in the Okhotsk Sea. The amber is considered autochthonous (found in original place of formation) or in the case of amber on the shoreline, parautochthonous (carried a relatively short distance from original deposit). Sakhalin amber is a variety of Rumanite which, as has been shown through recent analyses (E.C. Stout, et.al. 2000), is an amber identical or nearly identical to succinite (Baltic amber) that has undergone a high degree of polymerization; significant geological forces (heat, pressure) exerted on the resin during its burial, altered the resin itself and degraded/deformed any biological inclusions contained in the resin. As is often the case with Rumanite, particularly Sakhalin amber, the cavities inside trapped insects are found filled with resin, due to the intense forces the resin was subjected to. Rumanite also has a slightly higher melting point than Baltic amber, at 300-350˚C (as opposed to 250-300˚C). As of 2019, nearly 1,250 insect and arachnid inclusions have been discovered in Sakhalin amber, with aphids and chironomids (non-biting midges) comprising the majority of inclusions; strangely, beetle larvae are more common than their adult forms in this amber. Simetite, as a fresh resin, was believed to have low-viscosity as compared to other ambers; this property made it less likely for animals to become trapped. Interestingly, from a previously-studied collection of Rovno amber, it was found that 23% of all hemipteran inclusions were of the suborder Auchenorrhyncha, namely planthoppers (Infraorder: Fulgoromorpha, Superfamily: Fulgoroidea) and leafhoppers (Infraorder: Cicadomorpha, Superfamily: Membracoidea), with a 10% finding in Baltic amber, and less than 0.3% in Sakhalin amber: the low rates of occurrence in Sakhalin amber are possibly due to the small size of specimens in general, the low-viscosity nature of the resin, and/or a limited presence of planthoppers and leafhoppers in the ancient forest. Only a single leafhopper specimen has been described from Sakhalin amber. Sources: “First record of Cicadellidae (Insecta, Hemiptera, Auchenorrhyncha) from Eocene Sakhalinian amber”; ZooKeys, Issue 886; Christopher H. Dietrich, Evgeny E. Perkovsky 2019 “Amber Deposits in Romania, with Particular Emphasis on Those Located on the Eastern Side of the Carpathians (Bibliogeographical Considerations and a few Field Investigations)”; Annales d’Université Valahia Targoviste, Section d’Archéologie et d’Histoire, Tome XIX, pp. 33-56; Cârciumaru, et. al. 2017 https://bugguide.net/node/view/12745/tree© Kaegen Lau
-
- amber
- autochthonous
- (and 12 more)
-
Sakhalin Amber (Naibuchi Fm., Middle Eocene [~47.8-38 Ma])
Barrelcactusaddict posted a gallery image in Member Collections
From the album: Fossil Amber and Copal: Worldwide Localities
“Sakhalin Amber” Sakhalin Island, Russia Starodubskoye, Nayba River Estuary Naibuchi Fm. (Autochthonous) Middle Eocene (~47.8-38 Ma) Specimen A (Top Left): 0.5g / 15x9x8mm Specimen B (Top Right): 0.4g / 17x7x7mm Specimen C (Bottom Right): 0.35g / 14x8x6mm Specimen D (Bottom Left): 0.3g / 14x8x5mm Lighting: 140lm LED Entry eight of ten, detailing various rare ambers from European, Asian, and North American localities. The island Sakhalin is located in the Far East region of Russia, just north of the island of Hokkaido, Japan. Amber is usually found washed onto the shoreline, near the village of Starodubskoye; it is eroded from coal exposures of the Naibuchi Fm. and carried by the Nayba River, emptying in the Okhotsk Sea. The amber is considered autochthonous (found in original place of formation) or in the case of amber on the shoreline, parautochthonous (carried a relatively short distance from original deposit). Sakhalin amber is a variety of Rumanite which, as has been shown through recent analyses (E.C. Stout, et.al. 2000), is an amber identical or nearly identical to succinite (Baltic amber) that has undergone a high degree of polymerization; significant geological forces (heat, pressure) exerted on the resin during its burial, altered the resin itself and degraded/deformed any biological inclusions contained in the resin. As is often the case with Rumanite, particularly Sakhalin amber, the cavities inside trapped insects are found filled with resin, due to the intense forces the resin was subjected to. Rumanite also has a slightly higher melting point than Baltic amber, at 300-350˚C (as opposed to 250-300˚C). As of 2019, nearly 1,250 insect and arachnid inclusions have been discovered in Sakhalin amber, with aphids and chironomids (non-biting midges) comprising the majority of inclusions; strangely, beetle larvae are more common than their adult forms in this amber. Simetite, as a fresh resin, was believed to have low-viscosity as compared to other ambers; this property made it less likely for animals to become trapped. Interestingly, from a previously-studied collection of Rovno amber, it was found that 23% of all hemipteran inclusions were of the suborder Auchenorrhyncha, namely planthoppers (Infraorder: Fulgoromorpha, Superfamily: Fulgoroidea) and leafhoppers (Infraorder: Cicadomorpha, Superfamily: Membracoidea), with a 10% finding in Baltic amber, and less than 0.3% in Sakhalin amber: the low rates of occurrence in Sakhalin amber are possibly due to the small size of specimens in general, the low-viscosity nature of the resin, and/or a limited presence of planthoppers and leafhoppers in the ancient forest. Only a single leafhopper specimen has been described from Sakhalin amber. Sources: “First record of Cicadellidae (Insecta, Hemiptera, Auchenorrhyncha) from Eocene Sakhalinian amber”; ZooKeys, Issue 886; Christopher H. Dietrich, Evgeny E. Perkovsky 2019 “Amber Deposits in Romania, with Particular Emphasis on Those Located on the Eastern Side of the Carpathians (Bibliogeographical Considerations and a few Field Investigations)”; Annales d’Université Valahia Targoviste, Section d’Archéologie et d’Histoire, Tome XIX, pp. 33-56; Cârciumaru, et. al. 2017 https://bugguide.net/node/view/12745/tree© Kaegen Lau
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- amber
- autochthonous
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Have amber fossils ever been compared to more conventional fossils?
gieserguy posted a topic in Questions & Answers
Hey all, I was just wondering if there has ever been a study comparing fossils of the organisms trapped in amber to similarly located/aged "conventional" rock fossils. It would certainly be interesting to see how the organisms compare between the two forms of preservation- one as a flattened impression and the other looking like it was just alive yesterday. -
Hello Friends, Long time i didnt post here but i think someone must representing Baltic amber Inclusions on so amazing forum. This time i attach picture of tiny parasitic wasp 1mm body from Baltic amber ( 40-54 million years - Eocene Era ) Hymenoptera: Platygastridae. Spider Eggs Parasitoid ! Cheers to all members ! Artur
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Young Thuja Cone Inclusion From Baltic Amber ( Eocene Era )
vermiculosis posted a topic in Micro-paleontology
Dear Friends, This time i'd like to show amazing Thuja Cone Inclusion from Baltic Amber. Cupressaceae Family Amazing Preservation after more than 40 million years. Amber weight - 2.8 gram Amber size - 3.3 cm / 3 cm / 0.5 cm Inclusion ~ 0.35 cm More soon Cheers, Artur -
Very Rare Mammalian Hairs Inside Natural Baltic Amber
vermiculosis posted a topic in Micro-paleontology
Dear Friends, I found really nice specimen - Mammalian Hairs inside Baltic Amber. It was very lucky find becouse inside amber with Lepidoptera ( Moth ) i focused only on very nice Lepidoptera. When i start polish second side - i found this amazing hairs. I cut and prepared it separately. Doctors from Polish Uniwersity In Gdansk already saw it - Soon they will be put on exposition in Baltic Amber Museum in Gdansk and i am very proud :) :) Good resolution pictures -------> https://picasaweb.google.com/104612747881478275852/MammalianHairs#slideshow/6155057738284068226 With best regards Artur Michalski / Baltic Amber Inclusion- 13 replies
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- Artur Michalski
- Baltic Amber
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From the album: Mammalian Hairs Inside Baltic Amber
© Artur Michalski©
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- Artur Michalski
- Baltic Amber
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From the album: Spider Exuviae Inside Baltic Amber
Example of perfect spider Exuviae inside Baltic amber. Eocene Era.-
- Araneae
- Baltic Amber
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