SGS-UM 2009-002 records a 29–28 Ma catarrhine with a character combination recovered on the catarrhine stem in the cited matrix, not a crown catarrhine or direct ancestor.
claim:event:saadanius-holotype-stem-catarrhineAtlas home / References / New Oligocene primate from Saudi Arabia and the divergence of apes and Old World monkeys
References / paperNew Oligocene primate from Saudi Arabia and the divergence of apes and Old World monkeys
Zalmout, I.S.; Sanders, W.J.; MacLatchy, L.M.; Gunnell, G.F.; Al-Mufarreh, Y.A.; Ali, M.A.; Nasser, A.-A.H.; Al-Masari, A.M.; Al-Sobhi, S.A.; Nadhra, A.O.; Matari, A.H.; Wilson, J.A.; Gingerich, P.D.
Year2010
Source roleprimary-study
DOI / ID10.1038/nature09094
Fitness and scope
taxonomy · topology · range · morphology · geochronology · biogeography · ecology
The holotype is one partial cranium. Its 29–28 Ma age is biochronological and its stem-catarrhine position is a morphology-matrix result.
Claim ledger
SGS-UM 2009-002 was recovered as a stem catarrhine in a 36-character, 19-taxon analysis; this is a sampled topology, not a direct ancestor claim.
claim:taxon:saadanius:taxonomyThe profile is limited to the Middle Shumaysi Formation in western Saudi Arabia and does not establish a global catarrhine origin centre.
claim:taxon:saadanius:biogeographyDentition permits a bounded dietary inference, while the partial cranium does not preserve locomotion, habitual habitat or feeding behaviour.
claim:taxon:saadanius:ecologyThe holotype preserves much of the face, palate and dentition together with a tubular ectotympanic documented by photographs and micro-CT.
claim:taxon:saadanius:morphologyThe 29–28 Ma envelope follows the study’s biochronological context and is not a direct specimen date, crown-catarrhine FAD or divergence time.
claim:taxon:saadanius:fossil-range