Results 31 to 40 of about 1,663 (126)

Paleotemperature record of the Middle Devonian Kačák Episode

open access: yesScientific Reports, 2021
The Middle Devonian Epoch, ~ 393–383 million years ago, is known for a peak in diversity and highest latitudinal distribution of coral and stromatoporoid reefs.
Thomas J. Suttner   +8 more
doaj   +1 more source

Biodiversity, distribution and patterns of extinction of the last odontopleurid tilobites during the Devonian (Givetian, Frasnian) [PDF]

open access: yes, 2007
Biostratigraphical ranges and palaeogeographical distribution of mid-Givetian to end-Frasnian odontopleurids are investigated. The discovery of Leonaspis rhenohercynica sp. nov. in mid-Givetian strata extends this genus unexpectedly up to the late Middle
McNamara, K. J.   +3 more
core   +2 more sources

Diversity dynamics of silurian-early carboniferous land plants in South china. [PDF]

open access: yesPLoS ONE, 2013
New megafossil and microfossil data indicate four episodes in the diversification of Silurian-Early Carboniferous land plants of South China, a relatively continuous regional record.
Conghui Xiong   +7 more
doaj   +1 more source

Middle Givetian to late Famennian (Middle to Late Devonian) conodonts from the northern margin of Gondwana (Kerman region, Central Iran).

open access: yes, 2020
The Givetian to Famennian (Middle-Upper Devonian) Bahram Formation deposits (Bondar and Shahzadeh Mohammad sections) in the Kerman region, Central Iran were sampled for conodonts.
ZAMANI F.   +5 more
core   +2 more sources

A new elasmobranch Karksiodus mirus gen. et sp. nov. from the Burtnieki Regional Stage, Middle Devonian of Estonia [PDF]

open access: yesEstonian Journal of Earth Sciences, 2011
Teeth of a new elasmobranch Karksiodus mirus gen. et sp. nov. were discovered on two levels in the sandstones of the Karksi outcrop (South Estonia), corresponding to the Härma Beds, lower part of the Burtnieki Regional Stage (Givetian, Middle Devonian ...
Alexander Ivanov   +2 more
doaj   +1 more source

Late Givetian ammonoids from Hassi Nebech (Tafilalt Basin, Anti-Atlas, southern Morocco) [PDF]

open access: yesFossil Record, 2013
The Hassi Nebech area of the SE Tafilalt (Tafilalt Basin, Anti-Atlas, Morocco) yielded the richest and most diverse late Givetian ammonoid fauna on a global scale.
J. Bockwinkel   +2 more
doaj   +5 more sources

Devonian (Emsian, Givetian) blastoids and crinoids from the Tafilalt, Morocco

open access: yes, 2018
Two Emsian species of crinoids, Kroppocrinus garamdouaraensis n. sp. and Elicrinus? weyeri, and two species of blastoids, Pentremitidea pailleti (Emsian) and Hyperoblastus clavatus (Givetian), are described herein from the Tafilalt of Morocco.
Klug, Christian, Waters, Johnny A
core   +1 more source

Proposed magnetostratigraphy susceptibility magnetostratotype for the Eifelian-Givetian GSSP (Anti-Atlas, Morocco) [PDF]

open access: yes, 2000
The magnetosusceptibility event and cyclostratigraphy (MSEC) record for the Eifelian-Givetian Global Boundary Stratotype Section and Point (GSSP) located in the western Sahara of southeastern Morocco is used to establish a sequence of ...
Feist, Raimund   +3 more
core   +1 more source

Magnetic susceptibility dataset from the early Givetian to early Frasnian in the La Thure section

open access: yes, 2015
Recent advances in radiometric dating result in significant improvements in the geological timescale and provide better insight into the timing of various processes and evolutions within the Earth's system.
Pas, Damien   +11 more
core   +1 more source

Stages of development of the Middle-Late Devonian ICHTHYOFAUNA (Placodermi: Antiarchi) from the northern Eurasia

open access: yesИзвестия высших учебных заведений: Геология и разведка, 2019
Three stages, namely Middle Devonian (I), Early Late Devonian (II) and Late Late Devonian (III), are distin-guished in the evolution of antiarchs (Placodermi, Antiarchi) in the Middle-Late Devonian of Northern Eurasia.
S. V. Moloshnikov
doaj   +1 more source

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