Results 121 to 130 of about 205 (136)

Evolution and classification of some Ordovician Calymenina (Trilobita)

Geological Magazine, 1980
SummaryThe classification of the generaPlaesiacomiaHawle & Corda, 1847,KerfornellaHenry, 1976,ColpocorypheNovák in Perner, 1918,SalterocorypheHammann, 1977 andNeseuretusHicks, 1873, is discussed.PlaesiacomiaandKerfornellaare attributed to the Homalonotidae (sub family Kerfornellinae nov.), whileColpocoryphe, Salterocoryphe, andNeseuretusare ...
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Silurian Encrinurinae (Trilobita) from the central United States

Journal of Paleontology, 1992
Silurian (Llandovery–Ludlow) Encrinurinae from Wisconsin, Indiana, and Illinois include species ofBalizomaHolloway, 1980,CurriellaLamont, 1978,DistyraxLane, 1988,EncrinurusEmmrich, 1844,MackenziurusEdgecombe and Chatterton, 1990a, andNucleurusRamsköld, 1986.Mackenziurus lauriaen. sp.
Kenneth C. Gass, Gregory D. Edgecombe, Lars Ramsköld, Donald G. Mikulic, Rodney Watkins   +4 more
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Ecdysis inFlexicalymene meeki(Trilobita)

Journal of Paleontology, 1993
The ecdysial style ofFlexicalymene meeki(Foerste) from the Upper Ordovician of the Cincinnati arch (Ohio) is best characterized by a spectrum of configurations. Recurring patterns of displaced tergites and points of disarticulation indicate differential susceptibility of the exoskeleton to disarticulation during ecdysis. Specimens identified as exuviae
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Notes on Archikainella and Paraacidaspis (Trilobita)

1990
The type material of Chinese Upper Cambrian eoacidaspidid trilobites is here reviewed. Belovia, Eoacidaspis, Paraacidaspis and Archikainella are assigned to the family Eoacidaspididae. Paraacidaspis is a valid genus. Metaacidaspis Qiu, 1983, is a junior synonym of Archikainella Liu, 1982.
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Cryphops Richter & Richter, 1926 (Trilobita): Conserved

2002
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
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A review of Ordovician agnostid genera (Trilobita)

Transactions of the Royal Society of Edinburgh: Earth Sciences, 1996
ABSTRACTThe definition and scope of Ordovician genera of agnostid trilobites are discussed, and the generic affiliation of Ordovician species and well-illustrated material referred to in open nomenclature is assessed. Some 198 Ordovician species plus 25 species of uncertain latest Cambrian/earliest Ordovician age are enumerated, representing 24 genera ...
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Evolusi Trilobita

2020
Karyadi, Rian, Yosaphat Bismo Wioso, Newche Brighita Nyana M, Noviarni, Amelia   +3 more
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The eyes of Asaphus raniceps Dalman (Trilobita)

1973
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
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Trilobita, n.

2023
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British Cheiruridae (Trilobita)

Monographs of the Palaeontographical Society, 1971
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