Results 71 to 80 of about 230 (171)

GRAIN SIZE ANALYSIS AND MINERALOGY OF THE TREMADOCIAN DICTYONEMA SHALE IN ESTONIA [PDF]

Oil Shale, 2022
Aadu Loog, Tiia Kurvits, J. Aruväli, Valter Petersell   +3 more
doaj   +1 more source

New late Tremadocian (Early Ordovician) conodont and graptolite records from the southern South American Gondwana margin (Eastern Cordillera, Argentina)

Geologica Acta, 2009
New late Tremadocian (Early Ordovician) conodont and graptolite faunas from the eastern and central belts of the Eastern Cordillera (Jujuy Province, northwestern Argentina) are reported.
G.L. ALBANESI, G. ORTEGA
doaj  

Advances in the Ordovician graptolite biostratigraphy of the St Petersburg area, Russia [PDF]

Estonian Journal of Earth Sciences, 2009
The Ordovician shallow-water shelf deposits rich in benthic fauna are exposed along the Russian part of the Baltic–Ladoga Klint. Graptolites occur only at some stratigraphic levels, being comparatively numerous in marls and clays and very rare in ...
Suyarkova, Anna A., Koren,Tatyana N.
doaj  

ON THE CORRELATION OF THE TREMADOCIAN AND ARENIGIAN BOUNDARY BEDS IN THE EAST BALTIC [PDF]

Proceedings of the Academy of Sciences of the Estonian SSR. Geology, 1989
Silvi Mägi, Viive Viira, Helje Aru
openaire   +1 more source

Synchronizing rock clocks in the late Cambrian. [PDF]

Nat Commun, 2022
Zhao Z, Thibault NR, Dahl TW, Schovsbo NH, Sørensen AL, Rasmussen CMØ, Nielsen AT.   +6 more
europepmc   +1 more source

The Liexi fauna: a new Lagerstätte from the Lower Ordovician of South China. [PDF]

Proc Biol Sci, 2022
Fang X, Mao Y, Liu Q, Yuan W, Chen Z, Wu R, Li L, Zhang Y, Ma J, Wang W, Zhan R, Peng S, Zhang Y, Huang D.   +13 more
europepmc   +1 more source

Were all trilobites fully marine? Trilobite expansion into brackish water during the early Palaeozoic. [PDF]

Proc Biol Sci, 2021
Mángano MG, Buatois LA, Waisfeld BG, Muñoz DF, Vaccari NE, Astini RA.   +5 more
europepmc   +1 more source

A new somasteroid from the Fezouata Lagerstätte in Morocco and the Early Ordovician origin of Asterozoa. [PDF]

Biol Lett, 2021
Hunter AW, Ortega-Hernández J.
europepmc   +1 more source

THE NATURE OF POTASSIUM IN TREMADOCIAN DICTYONEMA SHALE (ESTONIA)

Oil Shale, 1996
Aadu Loog, J. Aruväli, Valter Petersell
openaire   +1 more source

The Family Olenidae (Trilobita, Arthropoda): A synopsis of its taxonomic composition, stratigraphic and paleogeographic distribution

Publicación Electrónica de la Asociación Paleontológica Argentina
This paper provides a list of all named species in the family Olenidae, along with their geographic and stratigraphic records. It also discusses each of the valid genera in the family and describes the composition of the entire group and its subfamilies
Daniela Soledad Monti
doaj   +1 more source