Stratigraphy of the Paleogene

Cavelier, C.; Pomerol, Charles

doi:10.2113/gssgfbull.ii.2.255

Cited by 47 publications

(20 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Planktic foraminifera are infrequent and not typical although the P10, Pll and P12 Zones of Blow (1979) (Bignot and Le Calvez, 1969;Hooyberghs, 1992;1999) can be recognised. The Ledian and Wemmelian are regional stages formerly used in Belgium and both belong to Zone NP15 (Martini, 1971;Cavelier and Pomerol, 1986;Steurbaut, 1986).…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Integrated biostratigraphy across the Ypresian/Lutetian boundary at Agost, Spain

Molina

Ćosović

Gonzalvo

et al. 2000

Revue de Micropaléontologie

View full text Add to dashboard Cite

ABSTRACT. --The integrated biostratigraphy of a 112 m thick exposed section near Agost (Southern Spain) was studied to assess its suitability as a Global Stratotype Section and Point (GSSP) for the Early/Middle Eocene (Ypresian/Lutetian) Boundary. This section consists of marls mterbedded with calcarenites and detrital turbidite layers deposited in a henfipelagic environment. Planktic foraminifera provided good biozonation from P8 through Pll Zones. The calcareous nannofossil Zones NP13 through NP16, respectively CPll through CP14a, could be distingmshcd. The larger foraminiferal Zones SBZ12 to SBZ14 could tentatively be distinguished. The base of the H. nuttalli (P.10) Zone, which is often used to set the boundary between the Lower and the Middle Eocene (Ypresian/Lutetian) falls at a facies change. The Agost Section can be used as a GSSP only if no better section is found.R~SUM~. -La biostratlgraphle mt6gT~e d'une coupe mesnrant 112 m d'6paisseur expos6e pros d'Agost dans le Sud de l'Espagne a 6t6 6tndi6e afin d'6valuer son ad6quation comme << Global Stratotype Section and Point (GSSP) ,> pour la limite Eocene inf6rieur/moyen (Ypr6sien/Lut6tien). La coupe est compos6e de marnes intercal6es de calcar6nites et couches d6tritiques turbidiques d6pos6es dans un environnement h6mip61agique. Les foraminif~res planctoniques permettent une bonne biozonation depuis la zone P8 ~ Pll. Pour les nannofossiles calcaires on peut distinguer les zones NP13 A NP16 et respectivement CPll ~ CP14a. Pour les grands foraminif~res il est possible de distinguer, bien que sans beaucoup de pr6cision, les zones SBZ12 h SBZ14. La base de la zone ~ H. nuttalli (P10), qui est g6n6ralement utilis6e pour marquer la linnte entre l'Eoc6ne inf6rieur et moyen (Ypr6sien/Lut6tien) coincide avec un changement de facies. Par cons6quent la coupe d'Agost pourrait ~tre choisie comme GSSP si aucune coupe plus appropri6e n'cst trouv6e.

show abstract

Section: Discussionmentioning

confidence: 99%

“…The Lower/Middle Eocene boundary is usually placed at the base of the H. nuttalli Zone, at the FO of the marker species (Cavelier and Pomerol, 1986 ;Berggren et al, 1995). This event occurs at about 52 meters in Sample 12.5 in marls just above the thickest limestone bank of the section.…”

Section: Discussionmentioning

confidence: 99%

Integrated biostratigraphy across the Ypresian/Lutetian boundary at Agost, Spain

Molina

Ćosović

Gonzalvo

et al. 2000

Revue de Micropaléontologie

View full text Add to dashboard Cite

show abstract

“…Horizon and geology: From Rupelian strata (33.00-28.25 Ma; early Oligocene) constituted of a fine limestone of a coastal freshwater lagoon (Cavelier 1984;Escarguel et al 1997;Sigé and Hugueney 2006). The same levels in nearby localities yielded other bird taxa in nine different families.…”

Section: Methodsmentioning

confidence: 99%

The earliest known pelican reveals 30 million years of evolutionary stasis in beak morphology

Louchart

Tourment²,

Carrier³

2010

J Ornithol

View full text Add to dashboard Cite

The feeding apparatus of Paleogene birds is rarely well-preserved. Here, we describe the earliest known pelican (early Oligocene, Luberon, southeastern France), with its almost complete beak. Morphologically identical to modern pelicans, the new fossil already shows several advanced features unique to extant species of the genus Pelecanus. It probably belongs to the lineage ancestral to all or some of these pelican species. This fossil reveals a remarkable evolutionary stasis in the morphology of such an advanced avian feeding apparatus through ca. 30 million years. Several hypotheses are proposed to suggest explanations for such examples of long stases in volant homeothermic vertebrates.

show abstract

“…However, the base of the middle Eocene (Lutetian) is slightly younger (passes within the base NP14) according to some authors (Aubry 1983;Bolli et al 1985;Berggren et al 1985, Cavelier andPomerol 1986). Calcareous nannofossil studies by Steurbaut (1988) and Steurbaut and Nolf (1986) on the Paris and Belgian Basins placed this boundary in the lower part of the NP14.…”

Section: The Lower Eocene/middle Eocene Boundarymentioning

confidence: 90%

Nannofossil biostratigraphy of the Paleocene-lower Eocene succession in the Thamad area, east central Sinai, Egypt

Faris

Shama

2007

Micropaleontology

View full text Add to dashboard Cite

In the Thamad area, east central Sinai, two stratigraphic sections are measured and sampled; Gebel El Mishiti and G. El Keeh, in order to determine the nannofossil biostratigrapy of the Paleocene-lower Eocene rocks. Gebel El Mishiti section is considered one of the most complete sections across the K/P boundary in Egypt where all the exposed rocks at G. El Keeh belong to the lower Eocene Egma Formation.A nearly complete sucession of Paleocene nannofossil biozones is recorded from the Esna Formation at G. El Mishiti. They are arranged from base to top as follows: Markalius inversus (NP1), Cruciplacolithus tenuis (NP2), Chiasmolithus danicus (NP3), Ellipsolithus macellus (NP4), Fasciculithus tympaniformis (NP5), Heliolithus kleinpellii (NP6), Discoaster mohleri (NP7/8) and Discoaster multiradiatus (NP9) zones.The Danian/Selandian boundary is located at the base of Zone NP5 at the level of the first appearance of Fasciculithus taxa. The Selandian/Thanetian boundary can be traced tentatively at the base of the Discoaster mohleri Zone (NP7/8). The Paleocene/Eocene boundary is traced between the NP9a/NP9b subzonal boundary which is marked by the first appearances of Discoaster araneus, Rhomboaster calcitrapa, R. bitrifida and R.cuspis. The Paleocene /Eocene boundary lies within the upper part of the Esna Formation.

show abstract

Stratigraphy of the Paleogene

Cited by 47 publications

References 0 publications

Integrated biostratigraphy across the Ypresian/Lutetian boundary at Agost, Spain

Integrated biostratigraphy across the Ypresian/Lutetian boundary at Agost, Spain

The earliest known pelican reveals 30 million years of evolutionary stasis in beak morphology

Nannofossil biostratigraphy of the Paleocene-lower Eocene succession in the Thamad area, east central Sinai, Egypt

Contact Info

Product

Resources

About