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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Systematics, morphology, and appendages of an Early Ordovician pilekiine trilobite Anacheirurus from Fezouata Shale and the early diversification of Cheiruridae [PDF]
Acta Palaeontologica Polonica, 2021 Pilekiines are the earliest diverging members of the successful trilobite family Cheiruridae. The pilekiine genus Anacheirurus is characterized by sub-quadratic to sub-oval glabella, pitted genae, and a distinct trunk with elongated pleural spines in ...
FRANCESC PÉREZ-PERIS +3 more
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Injuries and molting interference in a trilobite from the Cambrian (Furongian) of South China [PDF]
PeerJ, 2021 An injured Shergoldia laevigata Zhu, Hughes & Peng, 2007 (Trilobita, Asaphida) was collected from the Furongian of Guangxi, South China. The injuries occurred in the left thoracic pleurae possessing two marked V-shaped gaps.
Ruiwen Zong
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Trilobite compound eyes with crystalline cones and rhabdoms show mandibulate affinities [PDF]
Nature Communications, 2019 Little is known about the internal anatomy of early eyes. Here, Scholtz and colleagues show the internal eye structures from fossils of two genera of trilobites, which support an ancestral apposition eye with crystalline cones in Trilobita and a close ...
Gerhard Scholtz +2 more
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A new species group in the genus Dichaetophora, with descriptions of six new species from the Oriental region (Diptera, Drosophilidae) [PDF]
ZooKeys, 2017 The genus Dichaetophora Duda comprises 61 described species classified into four species groups: agbo, tenuicauda, acutissima and sinensis. This genus is distributed exclusively in the Old World, and is rich in species in the tropical and subtropical ...
Jin-Hua Yang +4 more
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First record of Telephina (Trilobita) from the Ordovician of northeastern Estonia and its stratigraphical implications [PDF]
Estonian Journal of Earth Sciences, 2011 For the first time a telephinid trilobite was recorded from the shallow-water rocks of the North Estonian Confacies Belt in the oil-shale mining area of northeast Estonia.
Helje Pärnaste, Adrian Popp
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Phylogenetics and systematics of the subfamilies Cheirurinae and Deiphoninae (Trilobita) [PDF]
Swiss Journal of PalaeontologyCheiruridae is one of the most diverse families of trilobites known from the Ordovician with 453 species assigned. Within Cheiruridae eight subfamilies (Acanthoparyphinae, Cheirurinae, “Cyrtometopinae”, Deiphoninae, Eccoptochilinae, Heliomerinae ...
Francesc Pérez-Peris +2 more
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Biostratigraphic significance of the latest Cambrian-earliest Ordovician agnostoid trilobites from Northwestern Argentina [PDF]
Geologica Acta, 2003 The biostratigraphic significance of the latest Cambrian-earliest Ordovician trilobite agnostoids from northwestern Argentina is summarized. A characterization of the faunas recognized below and above the Cambrian-Ordovician boundary is presented on the ...
M.F. Tortello
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A systematic revision of the family Harpetidae (Trilobita) [PDF]
Records of the Western Australian Museum, 2002 (Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Malte C. Ebach, Kenneth J. McNamara
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Distribution of the order Proetida (Trilobita) in Baltoscandian Ordovician strata [PDF]
Estonian Journal of Earth Sciences, 2009 The trilobite order Proetida forms a minor but important faunal element within the Ordovician strata of Baltoscandia. This review follows the current systematic, taxonomic, and stratigraphical usage and discusses the distribution of these trilobites ...
Pärnaste, Helje +2 more
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