Results 31 to 40 of about 789 (148)

The only known cyclopygid–‘atheloptic’ trilobite fauna from North America: the upper Ordovician fauna of the Pyle Mountain Argillite and its palaeoenvironmental significance [PDF]

open access: yes, 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.
Bruton, D.L.   +3 more
core   +1 more source

First record of the Ordovician fauna in Mila-Kuh, eastern Alborz, northern Iran [PDF]

open access: yesEstonian Journal of Earth Sciences, 2015
Restudy of the Cambrian–Ordovician boundary beds, traditionally assigned to the Mila Formation Member 5 in Mila-Kuh, northern Iran, for the first time provides convincing evidence of the Early Ordovician (Tremadocian) age of the uppermost part of the ...
Mohammad-Reza Kebria-ee Zadeh   +4 more
doaj   +1 more source

Die Gattung Erratencrinurus Krueger, 1971 (Trilobita; Ordovizium) aus baltoskandischen Geschieben [PDF]

open access: yesFossil Record, 2004
Aus der mittel- bis oberordovizischen Trilobitenfamilie Encrinuridae, die in Baltoskandia durch die Untergattungen Erratencrinurus und Celtencrinurus repräsentiert wird, werden achtzehn Arten beschrieben, darunter die vier neuen Arten Erratencrinurus (E.)
H.-H. Krueger
doaj   +3 more sources

Die Gattung Erratencrinurus Krueger, 1971 (Trilobita; Ordovizium) aus baltoskandischen Geschieben [PDF]

open access: yesFossil Record, 2004
Aus der mittel- bis oberordovizischen Trilobitenfamilie Encrinuridae, die in Baltoskandia durch die Untergattungen Erratencrinurus und Celtencrinurus repräsentiert wird, werden achtzehn Arten beschrieben, darunter die vier neuen Arten Erratencrinurus (E.)
H.-H. Krueger
doaj   +1 more source

New agnostina (Trilobita) from the Llanvirn (Ordovician) of Spain

open access: yesEstudios Geologicos, 1985
Se estudian los trilobites agnóstidos procedentes de nueve localidades, siete de ellas nuevas para estas faunas, situadas en las pizarras del Llanvirn inferior de la parte meridional de la Zona Centroibérica (Montes de Toledo, Villuercas y región de ...
I. Rábano, H. Pek, J. Vaněk
doaj   +1 more source

Shelly fossils from the lower Cambrian White Point Conglomerate, Kangaroo Island, South Australia [PDF]

open access: yesActa Palaeontologica Polonica, 2019
The lower Cambrian (Series 2) White Point Conglomerate (WPC) on Kangaroo Island, South Australia contains exotic clasts representing a diverse array of lithologies, including metamorphics, chert, sandstone, and abundant carbonates, notably archaeocyath ...
Marissa J. Betts   +5 more
doaj   +1 more source

(2833) Proposal to conserve the name Phalacroma (Dinophysales: Dinophyceae)

open access: yes, 2021
TAXON, Volume 70, Issue 5, Page 1127-1128, October 2021.
Fernando Gómez
wiley   +1 more source

Systematic revision of the Olenelloidea (Trilobita, Cambrian) [PDF]

open access: yes, 1999
Phylogenetic analyses for all the available species comprising eight clades of trilobites within the monophyletic superfamily Olenelloidea (Trilobita, Cambrian) are presented….https://elischolar.library.yale.edu/peabody_museum_natural_history_bulletin ...
Lieberman, Bruce S.
core   +1 more source

Hirnantia sagittifera (Brachiopoda) and Mucronaspis mucronata s.l. (Trilobita) in the Upper Ordovician of the East Baltic: taxonomy and distribution [PDF]

open access: yesEstonian Journal of Earth Sciences, 2012
The brachiopod Hirnantia sagittifera (M’Coy) and trilobite morphs of the genus Mucronaspis from the topmost Ordovician Porkuni Stage of the central East Baltic are described and compared with those from the Hirnantian Stage of other regions.
Linda Hints   +2 more
doaj   +1 more source

First record of Telephina (Trilobita) from the Ordovician of northeastern Estonia and its stratigraphical implications [PDF]

open access: yesEstonian 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
doaj   +1 more source

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