A new primate community from the earliest Oligocene of the Atlantic margin of Northwest Africa: Systematic, paleobiogeographic, and paleoenvironmental implications.
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| Title: | A new primate community from the earliest Oligocene of the Atlantic margin of Northwest Africa: Systematic, paleobiogeographic, and paleoenvironmental implications. |
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| Authors: | Marivaux, Laurent1 (AUTHOR) Laurent.Marivaux@UMontpellier.fr, Benammi, Mohamed2 (AUTHOR), Baidder, Lahssen3 (AUTHOR), Saddiqi, Omar3 (AUTHOR), Adnet, Sylvain1 (AUTHOR), Charruault, Anne-Lise1 (AUTHOR), Tabuce, Rodolphe1 (AUTHOR), Yans, Johan4 (AUTHOR), Benammi, Mouloud5 (AUTHOR) |
| Source: | Journal of Human Evolution. Aug2024, Vol. 193, pN.PAG-N.PAG. 1p. |
| Subjects: | Primates, Estuarine sediments, Oligocene Epoch, Borderlands, Paleogene, Eocene Epoch |
| Geographic Terms: | North Africa |
| Abstract: | We report a new Paleogene primate community discovered in the uppermost part of the Samlat Formation outcropping on the continental shore of the Rio de Oro, east of the Dakhla peninsula (in the south of Morocco, near the northern border of Mauritania). Fossils consist of isolated teeth, which were extracted by wet screening of estuarine sediments (DAK C 2) dating from the earliest Oligocene (ca. 33.5 Ma). These dental remains testify to the presence of at least eight primate species, documenting distinct families, four of which are among the Anthropoidea (Oligopithecidae [ Catopithecus aff. browni ], Propliopithecidae [? Propliopithecus sp.], Parapithecidae [ Abuqatrania cf. basiodontos ], and Afrotarsiidae [ Afrotarsius sp.]) and four in the Strepsirrhini (a Djebelemuridae [cf. ' Anchomomys ' milleri ], a Galagidae [ Wadilemur cf. elegans ], a possible lorisiform [ Orogalago saintexuperyi gen. et sp. nov.], and a strepsirrhine of indeterminate affinities [ Orolemur mermozi gen. et sp. nov.]). This record of various primates at Dakhla represents the first Oligocene primate community from Northwest Africa, especially from the Atlantic margin of that landmass. Considering primates plus rodents (especially hystricognaths), the taxonomic proximity at the generic (even specific) level between DAK C 2 (Dakhla) and the famous Egyptian fossil-bearing localities of the Jebel Qatrani Formation (Fayum Depression), either dating from the latest Eocene (L-41) or from the early Oligocene, suggests the existence of an east–west 'trans-North African' environmental continuum during the latest Eocene–earliest Oligocene time interval. The particularly diverse mammal fauna from DAK C 2 , recorded within the time window of global climate deterioration characterizing the Eocene/Oligocene transition, suggests that this tropical region of northwest Africa was seemingly less affected, if at all, by the cooling and associated paleoenvironmental and biotic changes documented at that time or at least that the effects were delayed. The expected densely forested paleoenvironment bordering the western margin of North Africa at the beginning of the early Oligocene probably offered better tropical refugia than higher latitudes or more inland areas during the cooling episode. [ABSTRACT FROM AUTHOR] |
| Copyright of Journal of Human Evolution is the property of Academic Press Inc. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
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| Items | – Name: Title Label: Title Group: Ti Data: A new primate community from the earliest Oligocene of the Atlantic margin of Northwest Africa: Systematic, paleobiogeographic, and paleoenvironmental implications. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Marivaux%2C+Laurent%22">Marivaux, Laurent</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> Laurent.Marivaux@UMontpellier.fr</i><br /><searchLink fieldCode="AR" term="%22Benammi%2C+Mohamed%22">Benammi, Mohamed</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Baidder%2C+Lahssen%22">Baidder, Lahssen</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Saddiqi%2C+Omar%22">Saddiqi, Omar</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Adnet%2C+Sylvain%22">Adnet, Sylvain</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Charruault%2C+Anne-Lise%22">Charruault, Anne-Lise</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Tabuce%2C+Rodolphe%22">Tabuce, Rodolphe</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Yans%2C+Johan%22">Yans, Johan</searchLink><relatesTo>4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Benammi%2C+Mouloud%22">Benammi, Mouloud</searchLink><relatesTo>5</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Journal+of+Human+Evolution%22">Journal of Human Evolution</searchLink>. Aug2024, Vol. 193, pN.PAG-N.PAG. 1p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Primates%22">Primates</searchLink><br /><searchLink fieldCode="DE" term="%22Estuarine+sediments%22">Estuarine sediments</searchLink><br /><searchLink fieldCode="DE" term="%22Oligocene+Epoch%22">Oligocene Epoch</searchLink><br /><searchLink fieldCode="DE" term="%22Borderlands%22">Borderlands</searchLink><br /><searchLink fieldCode="DE" term="%22Paleogene%22">Paleogene</searchLink><br /><searchLink fieldCode="DE" term="%22Eocene+Epoch%22">Eocene Epoch</searchLink> – Name: SubjectGeographic Label: Geographic Terms Group: Su Data: <searchLink fieldCode="DE" term="%22North+Africa%22">North Africa</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: We report a new Paleogene primate community discovered in the uppermost part of the Samlat Formation outcropping on the continental shore of the Rio de Oro, east of the Dakhla peninsula (in the south of Morocco, near the northern border of Mauritania). Fossils consist of isolated teeth, which were extracted by wet screening of estuarine sediments (DAK C 2) dating from the earliest Oligocene (ca. 33.5 Ma). These dental remains testify to the presence of at least eight primate species, documenting distinct families, four of which are among the Anthropoidea (Oligopithecidae [ Catopithecus aff. browni ], Propliopithecidae [? Propliopithecus sp.], Parapithecidae [ Abuqatrania cf. basiodontos ], and Afrotarsiidae [ Afrotarsius sp.]) and four in the Strepsirrhini (a Djebelemuridae [cf. ' Anchomomys ' milleri ], a Galagidae [ Wadilemur cf. elegans ], a possible lorisiform [ Orogalago saintexuperyi gen. et sp. nov.], and a strepsirrhine of indeterminate affinities [ Orolemur mermozi gen. et sp. nov.]). This record of various primates at Dakhla represents the first Oligocene primate community from Northwest Africa, especially from the Atlantic margin of that landmass. Considering primates plus rodents (especially hystricognaths), the taxonomic proximity at the generic (even specific) level between DAK C 2 (Dakhla) and the famous Egyptian fossil-bearing localities of the Jebel Qatrani Formation (Fayum Depression), either dating from the latest Eocene (L-41) or from the early Oligocene, suggests the existence of an east–west 'trans-North African' environmental continuum during the latest Eocene–earliest Oligocene time interval. The particularly diverse mammal fauna from DAK C 2 , recorded within the time window of global climate deterioration characterizing the Eocene/Oligocene transition, suggests that this tropical region of northwest Africa was seemingly less affected, if at all, by the cooling and associated paleoenvironmental and biotic changes documented at that time or at least that the effects were delayed. The expected densely forested paleoenvironment bordering the western margin of North Africa at the beginning of the early Oligocene probably offered better tropical refugia than higher latitudes or more inland areas during the cooling episode. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Journal of Human Evolution is the property of Academic Press Inc. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.jhevol.2024.103548 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 1 StartPage: N.PAG Subjects: – SubjectFull: Primates Type: general – SubjectFull: Estuarine sediments Type: general – SubjectFull: Oligocene Epoch Type: general – SubjectFull: Borderlands Type: general – SubjectFull: Paleogene Type: general – SubjectFull: Eocene Epoch Type: general – SubjectFull: North Africa Type: general Titles: – TitleFull: A new primate community from the earliest Oligocene of the Atlantic margin of Northwest Africa: Systematic, paleobiogeographic, and paleoenvironmental implications. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Marivaux, Laurent – PersonEntity: Name: NameFull: Benammi, Mohamed – PersonEntity: Name: NameFull: Baidder, Lahssen – PersonEntity: Name: NameFull: Saddiqi, Omar – PersonEntity: Name: NameFull: Adnet, Sylvain – PersonEntity: Name: NameFull: Charruault, Anne-Lise – PersonEntity: Name: NameFull: Tabuce, Rodolphe – PersonEntity: Name: NameFull: Yans, Johan – PersonEntity: Name: NameFull: Benammi, Mouloud IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 08 Text: Aug2024 Type: published Y: 2024 Identifiers: – Type: issn-print Value: 00472484 Numbering: – Type: volume Value: 193 Titles: – TitleFull: Journal of Human Evolution Type: main |
| ResultId | 1 |
