Pliocene suids from Musaitu and Dermenji, Moldova: implications for understanding the origin of African Kolpochoerus Van Hoepen & Van Hoepen, 1932

Geodiversitas

Théodor Obada¹  Martin Pickford¹ 

关键词: Moldova;    Pliocene;    Suidae;    Dasychoerus;    Kolpochoerus;    Evolution;    Palaeobiogeography;    Moldavie;    Pliocène;    Suidae;    Dasychoerus;    Kolpochoerus;    évolution;    Paléobiogéographie;   

DOI  :  10.5252/g2016n1a5

学科分类：生物科学（综合）

来源: Museum National d Histoire Naturelle

【 摘 要 】

EarlyPliocenesuidsofEuropearegenerallyrareandpoorlypreserved,butsomeexceptionalfossilshavebeenfoundatRoussillon,France,Villafrancad'Asti,Italy,andKvabebi,Georgia.WeheredescribeandinterpretanalmostcompleteskullofasmallsuidfromMusaituandamandiblefragmentfromDermenji,Moldova,whichaddpreciousinformationtothedatabaseconcerningthesesmallEuropeanPliocenesuids,hereattributedtoDasychoerusarvernensis(Croizetamp;Jobert,1828).TheMoldovanfossilsprovideanimportantbiogeographiclinkbetweentheWesternEuropeanandAsianPlio-Pleistocenesuines.TheMusaituskull,inparticular,showstheelongatedsnout,enlargedcanineflanges,pneumatisedzygomaticarchandlowslungincisorrowcharacteristicofthegenusDasychoerusGray,1873.ThisspeciesisimportantbecauseitrepresentsthegroupfromwhichtheAfricanKolpochoerusVanHoepenamp;VanHoepen,1932lineageprobablyemerged.Thelattergroupisusefulforbiochronologybecause,havingarrivedinAfrica,whereithasbeencalledKolpochoerusdeheinzeliniBrunetamp;White,2001(infactajuniorsynonymofDasychoerusarvernensis)itevolvedrapidlyindimensionsanddentalmorphology.DuringthePliocenethegenusDasychoerus,alreadyadaptedtotropicalandsub-tropicalclimates,waswidespreadinmid-latitudeEurasiaandAfrica,butwhenmuchofmid-latitudeEurasiabecameborealduringthePlio-Pleistocene,therangeofDasychoerusshrankequatorwards,givingwaytoboreallyadaptedSusscrofaLinnaeus,1758overmuchofitsformerterritory,leavingadisjunctdistributionofitsdescendantsinAfrica(HylochoerusThomas,1904,possiblyPotamochoerusGray,1854)andthetropicalislandsoftheFarEast(Dasychoerus).

【 授权许可】

Unknown