Fossilized bioelectric wire – the trace fossil Trichichnus [PDF]
Biogeosciences, 2015 The trace fossil Trichichnus is proposed as an indicator of fossil bioelectric bacterial activity at the oxic–anoxic interface zone of marine sediments. This fulfils the idea that such processes, commonly found in the modern realm, should be also present
M. Kędzierski +3 more
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First known trace fossil of a nesting iguana (Pleistocene), The Bahamas. [PDF]
PLoS ONE, 2020 Most species of modern iguanas (Iguania, Iguanidae) dig burrows for dwelling and nesting, yet neither type of burrow has been interpreted as trace fossils in the geologic record.
Anthony J Martin +5 more
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The complex case of Macaronichnus trace fossil affecting rock porosity [PDF]
Scientific Reports, 2021 Bioturbation is an important factor for reservoir quality due to the modification of host rock petrophysical properties (i.e., porosity, permeability, and connectivity). However, there is no predictable relationship between bioturbation and its effect on
Javier Dorador +2 more
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Is the middle Cambrian Brooksella a hexactinellid sponge, trace fossil or pseudofossil? [PDF]
PeerJ, 2023 First described as a medusoid jellyfish, the “star-shaped” Brooksella from the Conasauga shale Lagerstätten, Southeastern USA, was variously reconsidered as algae, feeding traces, gas bubbles, and most recently hexactinellid sponges.
Morrison R. Nolan +3 more
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Rapid riparian ecosystem recovery in low-latitudinal North China following the end-Permian mass extinction [PDF]
eLifeThe greatest mass extinction at the end of the Permian, ca. 252 million years ago, led to a tropical dead zone on land and sea. The speed of recovery of life has been debated, whether fast or slow, and terrestrial ecosystems are much less understood than
Wenwei Guo +6 more
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Ichnogenus Trypanites in the Ordovician of Estonia (Baltica) [PDF]
Estonian Journal of Earth Sciences, 2023 Trypanites is a common boring in Ordovician hardgrounds of Estonia (Baltica). The depth of the sedimentary basin and sedimentation rates controlled the distribution of Trypanites. The trace-makersâ community was diverse and changing over time.
Ursula Toom, Jukka Kuva, Dirk Knaust
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Life, 2022 This review asks some hard questions about what the enigmatic graphoglyptid trace fossils are, documents some of their early fossil record from the Ediacaran–Cambrian transition and explores the idea that they may not have been fossils at all.
Duncan McIlroy
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First known feeding trace of the eocene bottom-dwelling fish Notogoneus osculus and its paleontological significance. [PDF]
PLoS ONE, 2010 BACKGROUND: The Green River Formation (early Eocene, about 42-53 Ma) at and near Fossil Butte National Monument in Wyoming, USA, is world famous for its exquisitely preserved freshwater teleost fish in the former Fossil Lake.
Anthony J Martin +2 more
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A new miocene–pliocene ichnotaxon for vermetid anchoring bioerosion structures
Frontiers in Earth Science, 2022 A revision of Renichnus arcuatus Mayoral, 1987, the vermetid attachment etching trace fossil (fixichnia), is presented here with an emended diagnosis.
Mariano Verde +8 more
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Parasitic gastropod bioerosion trace fossil on Cenomanian oysters from Le Mans, France and its ichnologic and taphonomic context [PDF]
Acta Palaeontologica Polonica, 2017 We describe and name Loxolenichnus stellatocinctus Breton and Wisshak igen. et isp. nov., a bioerosion trace fossil on an Upper Cenomanian oyster from Le Mans (France). This trace is attributed here to a parasitic gastropod.
Gérard Breton +3 more
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