The palaeoenvironment of the middle Miocene pliopithecid locality in Damiao, Inner Mongolia, China

Visa fullständig post



Permalänk

http://hdl.handle.net/10138/308889

Citation

Sukselainen , L K , Kaakinen , A , Eronen , J T , Passey , B H , Harrison , T , Zhaoqun , Z & Fortelius , M 2017 , ' The palaeoenvironment of the middle Miocene pliopithecid locality in Damiao, Inner Mongolia, China ' , Journal of Human Evolution , vol. 108 , pp. 31-46 . https://doi.org/10.1016/j.jhevol.2017.03.014

Titel: The palaeoenvironment of the middle Miocene pliopithecid locality in Damiao, Inner Mongolia, China
Författare: Sukselainen, Leena Kristiina; Kaakinen, Anu; Eronen, Jussi Tuomas; Passey, Benjamin H.; Harrison, Terry; Zhaoqun, Zhang; Fortelius, Mikael
Upphovmannens organisation: Department of Geosciences and Geography
Evolutionary Palaeontology group
Institute of Biotechnology
Long Ter­restrial Archives
Datum: 2017
Språk: eng
Sidantal: 16
Tillhör serie: Journal of Human Evolution
ISSN: 0047-2484
DOI: https://doi.org/10.1016/j.jhevol.2017.03.014
Permanenta länken (URI): http://hdl.handle.net/10138/308889
Abstrakt: Damiao, Inner Mongolia, has three main fossil horizons representing the early, middle, and late Miocene. The middle Miocene locality DM01 is the only primate locality from the region and also represents the latest occurrence of pliopithecoids in northern China. The presence of pliopithecoid primates in central Asia after the middle Miocene climatic optimum seems to contradict the general trend of strengthening climatic zonality and increasing aridity. To investigate this enigma, we employ faunal similarity, ecometrics, and stable isotope analysis. Our results support previous inferences concerning the presence of locally humid environments within the increasingly arid surroundings that characterized central Asia. Hypsodonty, estimated mean annual precipitation (MAP), local sedimentology, and large mammal fossils suggest more humid and possibly more forested and wooded environments for the DM01 locality. We compared our results with the adjacent fossil-rich middle Miocene Tunggur localities. However, the small mammal fauna and isotope data are consistent with a mosaic of forest and grassland environment for all Damiao localities. Based on our results, Tunggur may have been too seasonal or not sufficiently humid for pliopithecids. This is supported by the higher mean hypsodonty and lower estimated MAP estimates, as well as slightly higher d13C values. We suggest that DM01, the driest known Asian pliopithecid locality, may have been a more humid refugium within a generally drier regional context.
Subject: 119 Other natural sciences
Stabe isotopes
Ecometrics
Hypsodonty
Precipitation
Faunal similarity
Nei Monggol
Referentgranskad: Ja
Licens: cc_by_nc_nd
Användningsbegränsning: openAccess
Parallelpublicerad version: acceptedVersion


Filer under denna titel

Totalt antal nerladdningar: Laddar...

Filer Storlek Format Granska
Sukselainen_et_al_2017_submitted_JHE.pdf 3.770Mb PDF Granska/Öppna

Detta dokument registreras i samling:

Visa fullständig post