Understanding locomotion in trilobites by means of three-dimensional models [PDF]
iScience, 2023 Summary: Trilobites were one of the first animals on Earth to leave their imprints on the seafloor. Such imprints represent behavioral traces related to feeding or protection, in both cases implying different types of locomotion.
Jorge Esteve, Pedro Rubio
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Five new malformed trilobites from Cambrian and Ordovician deposits from the Natural History Museum [PDF]
PeerJ, 2023 Injured trilobites present insight into how a completely extinct group of arthropods responded to traumatic experiences, such as failed predation and moulting complications.
Russell D.C. Bicknell, Patrick M. Smith
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Life cycle evolution in the trilobites Balangia and Duyunaspis from the Cambrian Series 2 (Stage 4) of South China [PDF]
PeerJ, 2023 The evolution process can be reconstructed by tracking the changes in the dynamic characters of life cycles. A number of related trilobites from the Cambrian of South China provide additional information for the study of trilobite evolutionary patterns ...
Zhengpeng Chen +5 more
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Examining abnormal Silurian trilobites from the Llandovery of Australia [PDF]
PeerJ, 2022 Abnormal trilobites present insight into how arthropods with fully biomineralised exoskeletons recovered from injuries, genetic malfunctions, and pathologies.
Russell D.C. Bicknell, Patrick M. Smith
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Multiple origins of dorsal ecdysial sutures in trilobites and their relatives [PDF]
eLifeEuarthropods are an extremely diverse phylum in the modern, and have been since their origination in the early Palaeozoic. They grow through moulting the exoskeleton (ecdysis) facilitated by breaking along lines of weakness (sutures).
Kun-sheng Du +5 more
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The median eyes of trilobites [PDF]
Scientific Reports, 2023 Arthropods typically possess two types of eyes—compound eyes, and the ocellar, so called 'median eyes'. Only trilobites, an important group of arthropods during the Palaeozoic, seem not to possess median eyes.
Brigitte Schoenemann +1 more
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A new bilaterally injured trilobite presents insight into attack patterns of Cambrian predators [PDF]
PeerJ, 2022 Durophagous predation in the Cambrian is typically recorded as malformed shells and trilobites, with rarer evidence in the form of coprolites and shelly gut contents.
Ruiwen Zong, Russell D.C. Bicknell
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Allopatric molting of Devonian trilobites [PDF]
Scientific Reports, 2022 Trilobite exuviae record the development of individual trilobites and their molting process and can also contain information on their behavior. The silt- to fine-grained tuffites of the middle part of the Middle Member of the Upper Devonian Hongguleleng ...
Ruiwen Zong, Yiming Gong
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Sheltered preservation in Ordovician trilobites [PDF]
Fossil Record, 2021 Articulated holaspid specimens of Placoparia Hawle and Corda, 1847 and Eoharpes Raymond, 1905 entombed inside cephalopod conchs and under the remains of large illaenid, asaphid, cyclopygid and dalmanitid trilobites from the Middle Ordovician Šárka ...
O. Fatka, P. Budil, P. Kraft
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Coupled exuviae of the Ordovician Ovalocephalus (Pliomeridae, Trilobita) in South China and its behavioral implications [PDF]
PeerJ, 2020 Ecdysis was a vital process during the lives of trilobites. In addition to preserving the morphological changes in trilobite ontogeny, the preservation of its action often captured interesting behavioral information.
Ruiwen Zong
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