Results 51 to 60 of about 5,019 (222)
Scottish Carboniferous conodonts [PDF]
The Scottish Carboniferous conodonts described by Hinde and figured by Smith in 1900 are refigured and redescribed. Additional specimens from the John Smith collection and from the writer's own collection are described. Sixteen genera of conodonts are shown to be present in the Scottish Carboniferous and thirty species, of which seventeen are new, are ...
openaire +1 more source
A phylogeny for Heterostraci (stem‐gnathostomes)
Abstract The armoured jawless fishes (‘ostracoderms’) are major and widespread components of middle Palaeozoic ecosystems. As successive branches on the gnathostome stem lineage, they represent the early sequences of vertebrate evolution, including the assembly of the vertebrate skeleton. This is predicated, however, on understanding of their diversity
Emma Randle +2 more
wiley +1 more source
Limitotipes of Lower Sakmarian and Artinskian stages boundary in the Urals
The section Usolka and duplicating its section Dal’ny Tulkas (Bashkortostan) are proposed as the stratotypes of the Lower Sakmarian stage boundary and Lower Artinskian stage boundary of the International Stratigraphic scale.
V. V. Chernykh, B. I. Chuvashov
doaj +2 more sources
Dynamics of the conodont diversity in the Late Devonian–Early Carboniferous (Famennian–Serpukhovian)
Subject. The article is aimed to evaluate of the conodont diversity dynamics at the species level in the Famennian – Serpukhovian interval.Materials and methods.
A. V. Zhuravlev
doaj +1 more source
Erratum to: Furongian conodonts from the Machari Formation in the Gokgeum section, Yeongwol, Korea [PDF]
Byung-Su Lee
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Reflection of global events Frasnian epoch in the section of the western slope Polar Urals
For the first time we carried out a detailed comprehensive study of Frasnian stage in the lower сurrent of the Malaya Usa River located within the Eletskaya structural-formational zone of the Polar Urals.
Dmitrii B. Sobolev, Marina A. Soboleva
doaj +1 more source
This study presents the first 87Sr/86Sr isotope data for the Middle–Upper Devonian strata of the central part of the Volga–Ural petroleum province, which are based on ramiform conodont elements.
D. K. Nurgaliev +8 more
doaj +1 more source

