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’.

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).

scholarly journals Points of convergence between logical empiricism and inductive metaphysics: Hans Reichenbach and Erich Becher in comparison

Synthese ◽  
2021 ◽  
Author(s):  
Ansgar Seide
Keyword(s):  
20Th Century ◽  
19Th Century ◽  
Vienna Circle ◽  
External World ◽  
Logical Empiricism ◽  
Natural Sciences ◽  
Early 20Th Century ◽  
Late 19Th Century ◽  
Hans Reichenbach

AbstractIn this paper, I take a closer look at Hans Reichenbach’s relation to metaphysics and work out some interesting parallels between his account and that of the proponents of inductive metaphysics, a tradition that emerged in the mid- and late 19th century and the early 20th century in Germany. It is in particular Hans Reichenbach’s conception of the relation between the natural sciences and metaphysics, as displayed in his treatment of the question of the existence of the external world, that shows some very interesting similarities with inductive metaphysics. By a comparison with the position of the inductive metaphysician Erich Becher and his handling of the problem of realism, I work out the parallels between Reichenbach’s program and inductive metaphysics. I come to the conclusion that while there are certainly some respects in which Reichenbach’s logical empiricism is closer to the positions of the representatives of the Vienna Circle, it turns out that with regard to his views on metaphysics there is a greater affinity with the program of inductive metaphysics.

Biochronological significance of Amynodontidae (Mammalia, Perissodactyla) from the Paleogene of Kazakhstan

1996 ◽  
Vol 70 (4) ◽  
pp. 691-696 ◽  
Author(s):  
Spencer G. Lucas ◽  
Robert J. Emry
Keyword(s):  
Aral Sea ◽  
Close Similarity ◽  
Lake Basin ◽  
Upper Eocene ◽  
Lower Oligocene ◽  
Upper Oligocene

Five taxa of amynodontid rhinoceroses have been named from Kazakhstan. We consider only two of these valid, and recognize three amynodontid taxa from Paleogene deposits in Kazakhstan: Cadurcodon ardynensis (=Cadurcodon zaisanensis; =Amynodon tuskabakensis) from the upper Eocene (Ergilian)-lower Oligocene (Shandgolian) of the Zaysan basin, Zaisanamynodon borisovi, from the Ergilian of the Zaysan basin and Cadurcodon kazakademius, from Shandgolian strata in the vicinity of the Chelkar-Teniz lake basin. Gigantamynodon akespensis, from the upper Oligocene north of the Aral Sea is a rhinocerotid, not an amynodontid. Close similarity of the amynodontids of Kazakhstan to those of Mongolia and China supports direct correlation of Ergilian and Shandgolian strata across Asia.

Thomas F. Lucy's Plant Collections, Donated to the Buffalo Society of Natural Sciences in the Early 20Th Century

Rhodora ◽  
2008 ◽  
Vol 110 (944) ◽  
pp. 484-491
Author(s):  
Danielle Tilden ◽  
Lee B. Kass ◽  
Todd P. Egan
Keyword(s):  
20Th Century ◽  
Natural Sciences ◽  
Early 20Th Century ◽  
Plant Collections

Evolutionary Paleontology and the Fossil Record: A Historical Introduction

2008 ◽  
Vol 14 ◽  
pp. 41-53
Author(s):  
David Sepkoski
Keyword(s):  
20Th Century ◽  
Fossil Record ◽  
Professional Community ◽  
Natural Sciences ◽  
Evolutionary Change ◽  
Early 20Th Century ◽  
Past Century ◽  
The Past ◽  
Institutional Placement

From the beginning of paleontology's existence as a distinct professional community in the early 20th century, paleontologists have argued about ‘where’ the discipline fits among the natural sciences. Long told that paleontologists ought to be content with a subsidiary role as mere documenters of evolutionary change or as stratigraphical ‘handmaidens' to geology, over the past hundred years many paleontologists have actively resisted restrictive pigeonholing and attempted to establish paleontology as an autonomous discipline with status equal to its cousins biology and geology. This essay will survey some of the efforts at paleontological ‘activism’ over the past century, focusing particularly on institutional placement, intellectual contributions, and the use of arguments about the adequacy of the fossil record to bolster claims for disciplinary status.

Stratigraphy of the Lower Tertiary formations of Panjab Himalayas

1968 ◽  
Vol 105 (5) ◽  
pp. 421-430 ◽  
Author(s):  
R. S. Chaudhri
Keyword(s):  
North American ◽  
Upper Eocene ◽  
Lower Miocene ◽  
Lower Tertiary ◽  
Lower Oligocene ◽  
Upper Oligocene ◽  
Tertiary System

SUMMARYLower Tertiary rocks of the Panjab Himalayas are classified under the Lower Tertiary System which comprises the Subathu Series (Upper Palaeocene-Eocene), the Dagshai Series (Upper Eocene-Lower Oligocene) and the Kasauli Series (Upper Oligocene-Lower Miocene). There is perfect stratigraphic harmony between the Subathus and the Dagshais, and the latter, in turn, grade into the Kasauli Series.Correlation of the Lower Tertiary rocks of India, Pakistan and Burma and their European and North American equivalents is tabulated.

scholarly journals PETROLEUM POTENTIAL OF SOURCE BEDS IN THE CUU LONG BASIN

2011 ◽  
Vol 14 (4) ◽  
pp. 31-45
Author(s):  
Luan Thi Bui
Keyword(s):  
Organic Matter ◽  
Great Part ◽  
Source Rocks ◽  
Accumulation Process ◽  
Upper Eocene ◽  
North West ◽  
North East ◽  
Lower Oligocene ◽  
Upper Oligocene ◽  
Inclined Slope

In the Cuu Long basin, three source beds are identified: lower Miocene, Upper Oligocene, upper Eocene + lower Oligocene. They are separated from each other by sand-clay layers. Only Upper Oligocene and Upper Eocene + Lower Oligocene source beds are two main source beds supplying a great part of organic matter into traps. Petroleum source potential of Upper Oligocene source bed (66.30 billion tons) is greater than Upper Eocene + Lower Oligocene bed (29.88 billion tons). Total amount of hydrocarbon has ability to take part in accumulation process at the petroleumbearing traps from Upper Oligocene and Upper Eocene + Lower Oligocene source beds is over 2.19 billion tons and below 1.16 billion tons respectively. Thus, in whole CuuLong basin, source rocks have capacity to produce 96.18 billion tons of hydrocacbon in which accumulation is 3.35 billion tons making up 3.35% production quantity. Applying Monte - Carlo simulation method, using Crystal Ball software to calculate production potential and total amount of organic matter taking part into migration and accumulation process give rather appropriate result with difference level ≤ 1.25%.. Prospecting levels are in the following order: (i)Central lift zone has the greatest prospects, next is Dong Nai lift zone, graben located in north west inclined slope, south east inclined slope, north east area of Tam Dao lift zone finally. (2)Petroleum does not only accumulate in structural, combination traps but also in non-structural traps.

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.

Sign in / Sign up

Export Citation Format

Share Document