Insectivores (Mammalia) from the earliest Oligocene (MP 21) of Belgium

2004 ◽  
Vol 83 (3) ◽  
pp. 187-192
Author(s):  
R. Smith
Keyword(s):  
Late Eocene ◽  
Upper Eocene ◽  
Faunal Turnover ◽  
Early Oligocene ◽  
New Immigrants ◽  
Lower Oligocene ◽  
Primitive Species ◽  
Grande Coupure ◽  
Important Progress

AbstractInsectivore remains are not common in the Lower Oligocene of Europe. For this reason, the study of the earliest Oligocene insectivore fauna (MP 21) from Boutersem and Hoogbutsel, all together yielding nine species, representing five families, constitutes an important progress in the knowledge of the Late Eocene and Early Oligocene insectivore evolution. Some of the genera discovered in Belgium are known from upper Eocene sites (Saturninia, Amphidozotherium, Euronyctia, Eotalpa), whereas others are not known before the Oligocene (Butselia, Tetracus, Heterosoricinae ind.). The co-occurrence of primitive species of Nyctitheriidae with modern forms belonging to the Plesiosoricidae, Talpidae and Erinaceidae at the Eocene-Oligocene boundary suggests a transition fauna. Between the Priabonian (Late Eocene) and the Rupelian (Early Oligocene), the endemic European insectivores were in competition with the new immigrants. This faunal turnover is generally accepted as the ‘Grande Coupure’ event (the MP 21 event).

scholarly journals Insectivores (Mammalia) from the earliest Oligocene (MP 21) of Belgium

2004 ◽  
Vol 83 (3) ◽  
pp. 187-192 ◽  
Author(s):  
R. Smith
Keyword(s):  
Late Eocene ◽  
Upper Eocene ◽  
Faunal Turnover ◽  
Early Oligocene ◽  
New Immigrants ◽  
Lower Oligocene ◽  
Primitive Species ◽  
Grande Coupure ◽  
Important Progress

AbstractInsectivore remains are not common in the Lower Oligocene of Europe. For this reason, the study of the earliest Oligocene insectivore fauna (MP 21) from Boutersem and Hoogbutsel, all together yielding nine species, representing five families, constitutes an important progress in the knowledge of the Late Eocene and Early Oligocene insectivore evolution. Some of the genera discovered in Belgium are known from upper Eocene sites (Saturninia, Amphidozotherium, Euronyctia, Eotalpa), whereas others are not known before the Oligocene (Butselia, Tetracus, Heterosoricinae ind.). The co-occurrence of primitive species of Nyctitheriidae with modern forms belonging to the Plesiosoricidae, Talpidae and Erinaceidae at the Eocene-Oligocene boundary suggests a transition fauna. Between the Priabonian (Late Eocene) and the Rupelian (Early Oligocene), the endemic European insectivores were in competition with the new immigrants. This faunal turnover is generally accepted as the ‘Grande Coupure’ event (the MP 21 event).

Mammalian faunas from the Paleogene of the Sierra Palomera (Teruel, Spain)

2000 ◽  
Vol 74 (2) ◽  
pp. 336-348 ◽  
Author(s):  
Pablo Pelaez-Campomanes
Keyword(s):  
Late Eocene ◽  
Dental Morphology ◽  
Upper Eocene ◽  
European Standard ◽  
Open Environment ◽  
Early Oligocene ◽  
Lower Oligocene ◽  
Two New Species ◽  
Mammalian Faunas ◽  
Mammal Faunas

The mammal faunas from the upper Eocene and lower Oligocene from four localities in the Sierra Palomera (province of Teruel, Spain) are described: Villarrosano 1, 12, 14, and Aguatón. Two new species of rodents, Treposciurus manentis (Pseudosciuridae) and Bransatoglis attenuatus (Gliridae), are described from Aguaton. Comparison of the associations from the Sierra Palomera with the European standard succession (MP zonation) suggests a late Eocene age (MP 19-20) for Villarrosano 1 and Villarrosano 12 and a early Oligocene age for Aguatón and Villarrosano 14 (MP 21). The dental morphology and the relative abundance of the different mammal taxa from Villarrosano 1 and Aguatón suggest a more open environment in upper Eocene than in the early lower Oligocene in this basin.

scholarly journals The upper Eocene-Oligocene carnivorous mammals from the Quercy Phosphorites (France) housed in Belgian collections

2020 ◽  
Vol 24 (1-2) ◽  
pp. 1-16
Author(s):  
Floréal SOLÉ ◽  
Valentin FISCHER ◽  
Julien DENAYER ◽  
Robert P. SPEIJER ◽  
Morgane FOURNIER ◽  
...  
Keyword(s):  
20Th Century ◽  
Natural Sciences ◽  
Geographical Information ◽  
Early 20Th Century ◽  
Upper Eocene ◽  
Faunal Turnover ◽  
Lower Oligocene ◽  
Upper Oligocene ◽  
Grande Coupure ◽  
Evolution Of Mammals

The Quercy Phosphorites Formation in France is world famous for its Eocene to Miocene faunas, especially those from the upper Eocene to lower Oligocene, the richest of all. The latter particularly helped to understand the ‘Grande Coupure’, a dramatic faunal turnover event that occurred in Europe during the Eocene-Oligocene transition. Fossils from the Quercy Phosphorites were excavated from the middle 19th century until the early 20th century in a series of sites and became subsequently dispersed over several research institutions, while often losing the temporal and geographical information in the process. In this contribution, we provide an overview and reassess the taxonomy of these barely known collections housed in three Belgian institutions: the Université de Liège, KU Leuven, and the Royal Belgian Institute of Natural Sciences. We focus our efforts on the carnivorous mammals (Hyaenodonta and Carnivoramorpha) and assess the stratigraphic intervals covered by each collection. These fossils are derived from upper Eocene (Priabonian), lower Oligocene (Rupelian), and upper Oligocene (Chattian) deposits in the Quercy area. The richness of the three collections (e.g., the presence of numerous postcranial elements in the Liège collection), the presence of types and figured specimens in the Leuven collection, and some identified localities in the RBINS collection make these collections of great interest for further studies on systematics and the evolution of mammals around the ‘Grande Coupure’.

scholarly journals Paleoecology of the Upper Eocene-Lower Oligocene Malcov Basin based on the calcareous nannofossils: a case study of the Leluchów section (Krynica Zone, Magura Nappe, Polish Outer Carpathians)

2012 ◽  
Vol 63 (2) ◽  
pp. 149-164 ◽  
Author(s):  
Marta Oszczypko-Clowes ◽  
Bartłomiej Żydek
Keyword(s):  
Middle Eocene ◽  
Late Eocene ◽  
Calcareous Nannofossils ◽  
Late Oligocene ◽  
Upper Eocene ◽  
Early Oligocene ◽  
Lower Oligocene ◽  
Quantitative Analyses ◽  
Outer Carpathians

Paleoecology of the Upper Eocene-Lower Oligocene Malcov Basin based on the calcareous nannofossils: a case study of the Leluchów section (Krynica Zone, Magura Nappe, Polish Outer Carpathians)During the period of ca. 20 Ma (Middle Eocene-Chattian) the Leluchów Succession of the Magura Basin passed through drastic changes of sedimentary condition and paleobathymetry from well oxygened red shales withReticulofragmium amplectens, deposited beneath CCD, redGlobigerinaoozes, to oxygen depleted organic-rich menilite-type shales and finally to flysch deposition of open marine conditions. The biostratigraphic and lithostratigraphic scheme is well established with the Leluchów Marl Member — Zones NP19-20 to NP22 (Late Eocene-Early Oligocene), Smereczek Shale Member, Zone NP23 (Early Oligocene) and the Malcov Formation s.s., Zone NP24 (Early-Late Oligocene). The aim of the paper is to present the quantitative analyses as the basis for paleoecological changes in the Magura Basin during the Late Eocene-Late Oligocene period. The changes manifest themselves through a decrease in the water temperature and progressing eutrophication. Species typical of brackish water conditions and restricted to the Paratethys region were identified from the NP23 Zone.

scholarly journals PALAEOGRAPHIC EVOLUTION OF PINDOS BASIN DURING PALEOGENE USING CALCAREOUS NANNOFOSSILS

2018 ◽  
Vol 36 (2) ◽  
pp. 836 ◽  
Author(s):  
G. Ananiadis ◽  
I. Vakalas ◽  
A. Zelilidis ◽  
K. Stoykova
Keyword(s):  
Middle Eocene ◽  
Foreland Basin ◽  
Submarine Canyon ◽  
Basin Evolution ◽  
Calcareous Nannofossils ◽  
Upper Eocene ◽  
Subaerial Exposure ◽  
Early Oligocene ◽  
Lower Oligocene ◽  
Piggyback Basin

A different basin evolution is suggested between the northern and southern parts of the Pindos basin, based on biostratigraphic dating results. Characteristic nannofossils showed that flysch sedimentation in the whole basin started in the Paleocene and generally finished during the Eocene, with the exception of the Konitsa and Milia areas where sedimentation lasted until Early Oligocene. Although, basin depth increased southwards, Kastaniotikos and Sperchios faults affected the geometry of Pindos basin, creating ridges and troughs within the basin. Due to this segmentation of the basin, the continuity of the sedimentation in the northern part of the study area until Oligocene is suggested. Calcareous nannofossils recovered from this northern part indicate a Paleocene NP5 to early Cligocene (NP20-21) age. On the other hand, in the southern part, sedimentation of flysch was lasted until middle Eocene. According this model, sedimentation in the southern part, stopped during the middle Eocene, was followed by subaerial exposure and the migration of clastic sedimentation to the western part of Pindos zones (Pindos foreland basin of Ionian zone). At this time, in the northern part, a small-restricted basin was continuously active as a piggyback basin from upper Eocene to lower Oligocene and shallow deposits (slope and submarine canyon deposits, delta fan deposits) accumulated.

The Thrace Basin and the Black Sea: the Eocene–Oligocene marine connection

2017 ◽  
Vol 156 (1) ◽  
pp. 39-61 ◽  
Author(s):  
ARAL I. OKAY ◽  
ERCAN ÖZCAN ◽  
AYNUR HAKYEMEZ ◽  
MUZAFFER SIYAKO ◽  
GÜRSEL SUNAL ◽  
...  
Keyword(s):  
Black Sea ◽  
Late Cretaceous ◽  
Damage Zone ◽  
Late Eocene ◽  
Upper Eocene ◽  
The West ◽  
Clastic Sediment ◽  
Early Oligocene ◽  
Thrace Basin ◽  
West Black Sea

AbstractThe Late Cretaceous – Recent West Black Sea Basin and the Eocene–Oligocene Thrace Basin are separated by the Strandja arch comprising metamorphic and magmatic rocks. Since Late Cretaceous time the Strandja arch formed a palaeo-high separating the two basins which accumulated clastic sediment of >9 km thickness. During late Eocene – early Oligocene time the marine connection between these basins existed through the Çatalca gap west of Istanbul. The Çatalca gap lies on the damage zone of a major Cretaceous strike-slip fault; it formed a 15 km wide marine gateway, where carbonate-rich sediments of thicknessc.350 m were deposited. The sequence consists of upper Eocene shallow marine limestones (SBZ18-20) overlain by upper Eocene – lower Oligocene (P16-P19 zones) pelagic marl with a rich fauna of planktonic foraminifera; the marls are intercalated with 31–32 Ma acidic tuff and calc-arenite beds. The Çatalca gap is bounded in the west by a major normal fault, which marks the eastern boundary of the Thrace Basin. Seismic reflection profiles, well data and zircon U–Pb ages indicate that the Thrace Basin sequence west of the fault is late Eocene – middle Oligocene (37–27 Ma) in age and that the fault has accommodated 2 km of subsidence. Although there was a marine connection between the West Black Sea and Thrace basins during late Eocene – early Oligocene time, no significant exchange of clastic sediment took place. Sedimentation in the Çatalca gap ended abruptly during early Oligocene time by uplift, and this eventually led to the paralic conditions in the Thrace Basin.

Additional records of Collinsius simplex (Brachyura, Chasmocarcinidae) from the Upper Eocene to Lower Oligocene strata in Kyushu (Japan), and description of a new species of ghost shrimp (Axiidea, Callichiridae)

2020 ◽  
Vol 296 (1) ◽  
pp. 9-18
Author(s):  
Yusuke Ando
Keyword(s):  
New Species ◽  
Late Eocene ◽  
Middle Part ◽  
Calcareous Nannofossil ◽  
Upper Eocene ◽  
Lower Margin ◽  
Ghost Shrimp ◽  
Lower Oligocene ◽  
South West ◽  
A New Species

Additional specimens of Collinsius simplex Karasawa, 1993, a species first described from the Kishima Formation (Lower Oligocene, uppermost part of calcareous nannofossil zone CP16a), are recorded from the Upper Eocene– Lower Oligocene (CP15b– CP16a) Funazu Formation (Iojima Group) and the Lower Oligocene (CP16b) Itanoura Formation (Nishisonogi Group) in Kyushu, south- west Japan. This material extends the stratigraphical range of Collinsius simplex further back into the Late Eocene. In addition, a new species of ghost shrimp, Vecticallichirus kawanoi sp. nov., is described from the middle part of the Funazu Formation (Upper Eocene). This has a blade with ap- proximately 10 serration- like spines on the lower margin of the merus, a long carpus with an unarmed margin and a molar- like triangular tooth proximally on the occlusal margin near the base of fixed finger. It appears closest to V. batei (Woodward 1869), but differs in that the carpus has an unarmed lower margin; the same holds true for the fixed finger.

Iheringinucula, a new genus of the family Nuculidae (Mollusca: Bivalvia) from the Tertiary of Patagonia (Argentina)

1996 ◽  
Vol 70 (6) ◽  
pp. 935-940 ◽  
Author(s):  
Claudia J. del Río ◽  
Horacio H. Camacho
Keyword(s):  
New Species ◽  
New Genus ◽  
Late Eocene ◽  
Early Miocene ◽  
Upper Eocene ◽  
Lower Miocene ◽  
Lower Oligocene ◽  
Upper Oligocene ◽  
The Family

Iheringinucula, a new Tertiary genus of the family Nuculidae, is proposed. This taxon is known only from the Patagonian region (Argentina), and its range is from the late Eocene to the early Miocene. Two species are known: Iheringinucula tricesima (Ihering) from the Monte León Formation (upper Oligocene-lower Miocene) and Iheringinucula crassirugata new species from the San Julián Formation (upper Eocene-lower Oligocene?) and the Monte León Formation.

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