Stable isotopic evidence from paleosol carbonates and fossil teeth in Greece for forest or woodlands over the past 11 Ma

Jay Quade, Nikos Solounias, Thure E. Cerling

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103 Citations (Scopus)

Abstract

Mio-Pliocene fluvial rocks containing buried paleosols are common in Greece and Turkey. We used the carbon and oxygen isotopic composition of pedogenic carbonates associated with these paleosols to estimate the proportion of C3 (trees, shrubs, and cool growing season grasses) and C4 (warm growing season grasses) plants once present on the landscape. Evidence from the paleosols in well-known fossil-bearing formations in the lower Axios Valley in Macedonia, and from Samos, Pikermi near Athens, and Rhodes all show that Mio-Pliocene vegetation was dominated by C3 plants, as the entire region is today. In addition, nearly all paleosols contained carbonate, indicating that mean annual pitation has remained under about 1 m/yr during the last 11 Ma. The carbon isotopic evidence thus precludes the presence of Serengeti-type C4 grasslands favored by summer precipitation, but permits C3 forest or grasses fed by winter rains, or forest with mixed seasonal precipitation. However, there is no evidence in the published palynological records from the region for abundant grasses. Given these lines of evidence, we suggest that dry forest and woodland (largely C3) dominated the vegetation of the region. C3 grasslands, if present, were probably of very restricted extent. This reconstruction is supported by carbon isotopic evidence from fossil teeth from Samos and from Paşalar in NW Turkey, and by published evidence on masticatory morphology of Turolian-age ruminants from Samos and Pikermi. Our findings imply that the classic fossil-bearing localities on Samos and at Pikermi, and from the lower Axios Valley in Macedonia were not open savannas, as has been previously suggested, but rather, woodlands or forests.

Original languageEnglish (US)
Pages (from-to)41-53
Number of pages13
JournalPalaeogeography, Palaeoclimatology, Palaeoecology
Volume108
Issue number1-2
DOIs
StatePublished - 1994

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paleosol
Greece
carbonates
tooth
woodlands
woodland
teeth
fossils
grass
fossil
grasses
carbonate
Macedonia
carbon
Pliocene
growing season
Turkey (country)
valleys
grasslands
grassland

ASJC Scopus subject areas

  • Palaeontology

Cite this

Stable isotopic evidence from paleosol carbonates and fossil teeth in Greece for forest or woodlands over the past 11 Ma. / Quade, Jay; Solounias, Nikos; Cerling, Thure E.

In: Palaeogeography, Palaeoclimatology, Palaeoecology, Vol. 108, No. 1-2, 1994, p. 41-53.

Research output: Contribution to journalArticle

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