The Late Lutetian Thermal Maximum (middle Eocene): first record of deep-sea benthic foraminiferal response

2020 ◽  
Vol 545 ◽  
pp. 109637 ◽  
Author(s):  
Lucía Rivero-Cuesta ◽  
Thomas Westerhold ◽  
Laia Alegret
Keyword(s):  
Deep Sea ◽  
Middle Eocene ◽  
First Record ◽  
Thermal Maximum

scholarly journals Astronomical calibration of the geological timescale: closing the middle Eocene gap

2015 ◽  
Vol 11 (9) ◽  
pp. 1181-1195 ◽  
Author(s):  
T. Westerhold ◽  
U. Röhl ◽  
T. Frederichs ◽  
S. M. Bohaty ◽  
J. C. Zachos
Keyword(s):  
Deep Sea ◽  
Middle Eocene ◽  
Age Dating ◽  
Sedimentary Sequences ◽  
Thermal Maximum ◽  
Dating Methods ◽  
Cenozoic Era ◽  
Past Climate Change ◽  
Radioisotopic Dating ◽  
Geological Timescale

Abstract. To explore cause and consequences of past climate change, very accurate age models such as those provided by the astronomical timescale (ATS) are needed. Beyond 40 million years the accuracy of the ATS critically depends on the correctness of orbital models and radioisotopic dating techniques. Discrepancies in the age dating of sedimentary successions and the lack of suitable records spanning the middle Eocene have prevented development of a continuous astronomically calibrated geological timescale for the entire Cenozoic Era. We now solve this problem by constructing an independent astrochronological stratigraphy based on Earth's stable 405 kyr eccentricity cycle between 41 and 48 million years ago (Ma) with new data from deep-sea sedimentary sequences in the South Atlantic Ocean. This new link completes the Paleogene astronomical timescale and confirms the intercalibration of radioisotopic and astronomical dating methods back through the Paleocene–Eocene Thermal Maximum (PETM, 55.930 Ma) and the Cretaceous–Paleogene boundary (66.022 Ma). Coupling of the Paleogene 405 kyr cyclostratigraphic frameworks across the middle Eocene further paves the way for extending the ATS into the Mesozoic.

EFFECTS OF SIZE-SELECTIVE SEDIMENT MIXING ON DEEP-SEA RECORDS OF THE PALEOCENE-EOCENE THERMAL MAXIMUM

2018 ◽  
Author(s):  
Brittany N. Hupp ◽  
◽  
D. Clay Kelly ◽  
James C. Zachos ◽  
Timothy J. Bralower
Keyword(s):  
Deep Sea ◽  
Thermal Maximum ◽  
Sediment Mixing

First record of the deep-sea shrimp Argis toyamaensis (Yokoya, 1933) (Decapoda, Crangonidae) in the Sea of Okhotsk based on mitochondrial DNA sequences

Crustaceana ◽  
2021 ◽  
Vol 94 (4) ◽  
pp. 507-511
Author(s):  
Junta Fujita ◽  
Akira Iguchi ◽  
Akira Tohkairin ◽  
Tomonori Hamatsu ◽  
Yoshiaki Kai
Keyword(s):  
Mitochondrial Dna ◽  
Dna Sequences ◽  
Deep Sea ◽  
Sea Of Okhotsk ◽  
First Record ◽  
The Sea Of Okhotsk

scholarly journals First record of the deep sea species Thesea talismani Grasshoff, 1986 (Anthozoa: Octocorallia: Plexauridae) off Mauritania (NW Africa)

2016 ◽  
Vol 3 ◽  
Author(s):  
Soto De Matos-Pita Susana ◽  
Sampaio Iris ◽  
Castillo Oñate Sara ◽  
Freiwald André ◽  
Ramil Fran
Keyword(s):  
Deep Sea ◽  
First Record

First record of the rare stenopodidean shrimp Odontozona spongicola (Alcock & Anderson, 1899) (Decapoda: Stenopodidea: Stenopodidae) from Indonesia

Zootaxa ◽  
2021 ◽  
Vol 4915 (4) ◽  
pp. 575-584
Author(s):  
CHIEN-LIN CHEN ◽  
TIN-YAM CHAN
Keyword(s):  
South China Sea ◽  
South China ◽  
Rare Species ◽  
Deep Sea ◽  
New Record ◽  
First Record ◽  
The South China Sea ◽  
The South ◽  
China Sea

The stenopodidean shrimp Odontozona spongicola (Alcock & Anderson, 1899) collected by the South Java Deep-Sea Biodiversity Expedition 2018 (SJADES 2018) is a new record from Indonesia. The specimen of O. spongicola recently listed from the South China Sea is also formally reported here in. The characteristcs and coloration of this rare species are described and illustrated. 

The First Record of the Rust Fungus (Pucciniales) Spores from Middle Eocene Sakhalinian Amber

2021 ◽  
Vol 55 (1) ◽  
pp. 105-110
Author(s):  
Yu. Ya. Tykhonenko ◽  
V. P. Hayova ◽  
M. N. Sukhomlyn ◽  
M. S. Ignatov ◽  
D. V. Vasilenko ◽  
...  
Keyword(s):  
Middle Eocene ◽  
Rust Fungus ◽  
First Record

A new species and record of Serpulidae (Annelida: Polychaeta) from Cross Seamount in the Hawaiian Chain

Zootaxa ◽  
2012 ◽  
Vol 3192 (1) ◽  
pp. 49
Author(s):  
JULIE H. BAILEY-BROCK ◽  
WAGNER F. MAGALHÃES
Keyword(s):  
New Species ◽  
Deep Sea ◽  
New Record ◽  
Type Species ◽  
Hawaiian Islands ◽  
Type Specimen ◽  
First Record ◽  
Type Locality ◽  
A New Species

A new species of the serpulid genus Metavermilia Bush, 1905 and a new record of the genus Omphalopomopsis Saint-Joseph, 1894 are described from deep-sea lava rocks collected from 2,013 m at Cross Seamount, southwest of the Hawaiiarchipelago. Metavermilia zibrowii sp. nov., differs from its congeners mostly by the presence of a simple and concaveoperculum, extent of the thoracic membrane and tube morphology. Omphalopomopsis langerhansii (Marenzeller, 1885)is the type species of the genus and it is only known through its type specimen. This species is characterized by a simpleoperculum with a shallow convex calcareous endplate, cylindrical peduncle, presence of Apomatus chaetae and high num-ber of teeth in the thoracic uncini. This is the first record of this species outside the type locality and both genera are newly recorded for the Hawaiian Islands.

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