The development of the Silurian trilobite Aulacopleura koninckii reconstructed by applying inferred growth and segmentation dynamics: A case study in paleo-evo-devo [PDF]
, 2017 Fossilized growth series provide rare glimpses into the development of ancient organisms, illustrating descriptively how size and shape changed through ontogeny.
Fusco, Giuseppe +3 more
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The occurrence of Phacopida trilobites from Pimenteira Formation at João Costa, Piauí, Brazil [PDF]
Geologia USP. Série Científica, 2013 The marine macroinvertebrate fossils from the Devonian of the Parnaíba Basin are among the most diverse of Paleozoic of Brazil. In recent years, most revisions on these fossils involved trilobites from the Pimenteira and Cabeças formations, in the ...
Juliana de Moraes Leme +3 more
doaj +1 more source
The only known cyclopygid–‘atheloptic’ trilobite fauna from North America: the upper Ordovician fauna of the Pyle Mountain Argillite and its palaeoenvironmental significance [PDF]
, 2012 The trilobite fauna of the upper Ordovician (middle Katian) Pyle Mountain Argillite comprises a mixture of abundant mesopelagic cyclopygids and other pelagic taxa and a benthic fauna dominated by trilobites lacking eyes.
Adrain +112 more
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The SPICE carbon isotope excursion in Siberia: A combined study of the upper Middle Cambrianlowermost Ordovician Kulyumbe River section, northwestern Siberian Platform [PDF]
, 2008 An integrated, high-resolution chemostratigraphic (C, O and Sr isotopes) and magnetostratigraphic study through the upper Middle Cambrian–lowermost Ordovician shallowmarine carbonates of the northwestern margin of the Siberian Platform is reported. The
Kouchinsky, Artem
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A 390 million-year-old hyper-compound eye in Devonian phacopid trilobites
Scientific Reports, 2021 Trilobites, extinct arthropods that dominated the faunas of the Palaeozoic, since their appearance c 523 million years ago, were equipped with elaborate compound eyes. While most of them possessed apposition compound eyes (in trilobites called holochroal
B. Schoenemann +5 more
doaj +1 more source
Sequence stratigraphy, chemostratigraphy and facies analysis of Cambrian Series 2 – Series 3 boundary strata in northwestern Scotland [PDF]
, 2016 Globally, the Series 2 – Series 3 boundary of the Cambrian System coincides with a major carbon isotope excursion, sea-level changes and trilobite extinctions.
Faggetter, Luke +14 more
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Estudios Geologicos, 2009 Se describe por primera vez en detalle el enrollamiento de Conocoryphe heberti y se compara con el posible enrollamiento de Occatharia sdzuyi, ambas son especies de conocorífidos abundantes en el Cámbrico medio de la subprovincia Mediterránea.
J. Esteve
doaj +1 more source
Extent and duration of marine anoxia during the Frasnian– Famennian (Late Devonian) mass extinction in Poland, Germany, Austria and France [PDF]
, 2004 – The intensity and extent of anoxia during the two Kellwasser anoxic events has been investigated in a range of European localities using amultidisciplinary approach (pyrite framboid assay, gamma-ray spectrometry and sediment fabric analysis).
Bond, D.P.G., Racki, G., Wignall, P.B.
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Geogaceta, 2022 Se presenta una nueva sección bioestratigrafica de la parte basal de la Formación Sueve. La nueva sección se suma a las nueve secciones descritas en estudios previos, relativos al sector septentrional del manto de Laviana.
Enrique Bernárdez +2 more
doaj +1 more source