Results 31 to 40 of about 19,868 (242)

The Gondwanan Green Alga Tasmanites sp. in the Permian Lacustrine Deposits of West Timor

open access: yesIndonesian Journal on Geoscience, 2019
This paper discusses palynological research on the Permian lacustrine sediments of West Timor. Ten outcrop samples were collected from a 5 m high cliff.
Eko Budi Lelono
doaj   +1 more source

Diversity of Cretaceous continental actinopterygians from Argentina, South America [PDF]

open access: yesResearch & Knowledge, 2017
South America holds a signiicant number of continental ish-bearing deposits of Cretaceous age. The principal purpose of the current article is to illustrate the diversity of continental actinopterygian assemblages of the main Cretaceous localities from ...
P. Guillermina Giordano
doaj   +1 more source

Biostratigraphy of Acritarchs and Chitinozoans in Ordovician Strata from the Fazel Abad Area, Southeastern Caspian Sea, Alborz Mountains, Northern Iran: Stratigraphic Implications [PDF]

open access: yesJournal of Sciences, Islamic Republic of Iran, 2017
Sixty-four surface samples from the Lower Palaeozoic rock units (mainly Lalun,Abastu and Abarsaj formations) near Kholin-Darreh village in the Fazel Abad area,southeastern the Caspian Sea, Northern Iran, were analyzed to determine their agerelationships.
M. Ghavidel-syooki
doaj  

A review of Mawsonia from the Ilhas Group, Marfim Formation (? Late Hauterivian), Recôncavo Basin [PDF]

open access: yesResearch & Knowledge, 2017
The Mawsoniidae family includes six genera Chinlea, Diplurus, Trachymetopon, Parnaibaia, Mawsonia and Axelrodichthys with an almost worldwide occurrence ranging from the Triassic to the Late Cretaceous.
Camila Cupello   +2 more
doaj   +1 more source

G'day Gondwana - the final accretion of a supercontinent: U-Pb ages from the post-orogenic Sao Vicente Granite, northern Paraguay Belt, Brazil

open access: yes, 2012
The Paraguay Belt in central South America is part of a larger chain of orogenic belts, including the Araguaia Belt to the northeast and potentially the Pampean Belt to the south, which are believed to mark the suture zone of the Clymene Ocean ...
McGee, B.   +8 more
core   +1 more source

Retraction Note: Synthesis and photoluminescence properties of CaMgAl10O17:Sm3+ phosphor for n-UV solid-state lighting (PCSS: (2024), 25(2), (245-249), https://doi.org/10.15330/pcss.25.2.245-249)

open access: yesФізика і хімія твердого тіла
The Editor-in-Chief has retracted this article. The PCSS has retracted paper "Synthesis and photoluminescence properties of CaMgAl10O17:Sm3+ phosphor for n-UV solid-state lighting".
R.M. Yerojwar   +4 more
doaj   +1 more source

A Late Jurassic deep-bodied actinopterygian fish from Antarctica [PDF]

open access: yesActa Palaeontologica Polonica
Mesozoic deep-bodied actinopterygians are of interest given, among others, the various modes of feeding exhibited by these fishes. Regrettably, most of their fossil record is restricted to a limited number of localities in Europe.
Soledad Gouiric-Cavalli   +3 more
doaj   +1 more source

Denudation history of the Bocaina Plateau, Serra do Mar, southeastern Brazil: Relationships to Gondwana breakup and passive margin development

open access: yes, 2016
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)The Bocaina Plateau, which is situated on the eastern flank of the continental rift of southeastern Brazil, is the highest part of the Serra do Mar. Topographic relief in this area is suggested
FRANCO-MAGALHAES, Ana O. B.   +5 more
core   +2 more sources

Unnoticed in the tropics: phylogenomic resolution of the poorly known arachnid order Ricinulei (Arachnida) [PDF]

open access: yesRoyal Society Open Science, 2015
Ricinulei are among the most obscure and cryptic arachnid orders, constituting a micro-diverse group with extreme endemism. The 76 extant species described to date are grouped in three genera: Ricinoides, from tropical Western and Central Africa, and the
Rosa Fernández, Gonzalo Giribet
doaj   +1 more source

Evolutionary radiation of large‐bodied gorgonopsians from the lower Abrahamskraal formation of South Africa

open access: yesThe Anatomical Record, EarlyView.
Abstract The middle Permian represents a critical interval in therapsid evolution, when gorgonopsians emerged as some of the first specialized apex predators within terrestrial ecosystems. Despite their significance, the early diversification of Gorgonopsia in Gondwana remains poorly understood due to scarcity and fragmentary material.
Zanildo Macungo   +5 more
wiley   +1 more source

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