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Preservation and Ta...
Preservation and Taphonomy of Fossil Insects from the Earliest Eocene of Denmark
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- Heingård, Miriam (författare)
- Lund University,Lunds universitet,Berggrundsgeologi,Geologiska institutionen,Naturvetenskapliga fakulteten,Lithosphere and Biosphere Science,Department of Geology,Faculty of Science
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- Sjövall, Peter (författare)
- RISE,Metodik för produktframtagning,RISE Energy Technology Center AB
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- Schultz, Bo (författare)
- Fur Museum, Denmark
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- Sylvestersen, Rene (författare)
- Fur Museum, Denmark
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- Lindgren, Johan (författare)
- Lund University,Lunds universitet,Berggrundsgeologi,Geologiska institutionen,Naturvetenskapliga fakulteten,Lithosphere and Biosphere Science,Department of Geology,Faculty of Science
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(creator_code:org_t)
- 2022-03-03
- 2022
- Engelska.
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Ingår i: Biology. - : MDPI. - 2079-7737. ; 11:3
- Relaterad länk:
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https://doi.org/10.3...
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https://urn.kb.se/re...
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https://doi.org/10.3...
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Abstract
Ämnesord
Stäng
- Marine sediments of the lowermost Eocene Stolleklint Clay and Fur Formation of north-western Denmark have yielded abundant well-preserved insects. However, despite a long history of research, in-depth information pertaining to preservational modes and taphonomic pathways of these exceptional animal fossils remains scarce. In this paper, we use a combination of scanning electron microscopy coupled with energy-dispersive X-ray spectroscopy (SEM-EDX), transmission electron microscopy (TEM) and time-of-flight secondary ion mass spectrometry (ToF-SIMS) to assess the ultrastructural and molecular composition of three insect fossils: a wasp (Hymenoptera), a damselfly (Odonata) and a pair of beetle elytra (Coleoptera). Our analyses show that all specimens are preserved as organic remnants that originate from the exoskeleton, with the elytra displaying a greater level of morphological fidelity than the other fossils. TEM analysis of the elytra revealed minute features, including a multilayered epicuticle comparable to those nanostructures that generate metallic colors in modern insects. Additionally, ToF-SIMS analyses provided spectral evidence for chemical residues of the pigment eumelanin as part of the cuticular remains. To the best of our knowledge, this is the first occasion where both structural colors and chemical traces of an endogenous pigment have been documented in a single fossil specimen. Overall, our results provide novel insights into the nature of insect body fossils and additionally shed light on exceptionally preserved terrestrial insect faunas found in marine paleoenvironments. © 2022 by the authors.
Ämnesord
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Geologi (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Geology (hsv//eng)
Nyckelord
- Cuticle
- Eocene
- Fur Formation
- Insects
- Melanin
- Mo-clay
- Pigment
- Stolleklint Clay
- Structural coloration
- Ølst Formation
- cuticle
- Eocene
- Fur Formation
- insects
- melanin
- mo-clay
- pigment
- Stolleklint Clay
- structural coloration
- Ølst Formation
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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