Oxygen and Carbon Isotope Measurements of Late Cretaceous and Early Tertiary Foraminifera

1974 ◽  
Vol 20 (2) ◽  
pp. 152 ◽  
Author(s):  
Tsunemasa Saito ◽  
Jan Van Donk
Keyword(s):  
Carbon Isotope ◽  
Late Cretaceous ◽  
Oxygen And Carbon Isotope ◽  
Early Tertiary ◽  
Isotope Measurements

scholarly journals Long-term Late Cretaceous oxygen- and carbon-isotope trends and planktonic foraminiferal turnover: A new record from the southern midlatitudes

2016 ◽  
Vol 128 (11-12) ◽  
pp. 1725-1735 ◽  
Author(s):  
Francesca Falzoni ◽  
Maria Rose Petrizzo ◽  
Leon J. Clarke ◽  
Kenneth G. MacLeod ◽  
Hugh C. Jenkyns
Keyword(s):  
Carbon Isotope ◽  
Late Cretaceous ◽  
New Record ◽  
Oxygen And Carbon Isotope

A 1000-year record of dry conditions in the eastern Canadian prairies reconstructed from oxygen and carbon isotope measurements on Lake Winnipeg sediment organics

2009 ◽  
Vol 24 (5) ◽  
pp. 426-436 ◽  
Author(s):  
William Mark Buhay ◽  
Shawna Simpson ◽  
Harvey Thorleifson ◽  
Mike Lewis ◽  
John King ◽  
...  
Keyword(s):  
Carbon Isotope ◽  
Lake Winnipeg ◽  
Canadian Prairies ◽  
Oxygen And Carbon Isotope ◽  
Dry Conditions ◽  
Isotope Measurements

USING CARBON ISOTOPE RATIOS TO STUDY FOREST SOILS AND CANOPIES OF THE LATE CRETACEOUS IN SOUTHERN UTAH

2016 ◽  
Author(s):  
Henry Fricke ◽  
◽  
Victoria Crystal ◽  
Ian M. Miller ◽  
Joseph Sertich ◽  
...  
Keyword(s):  
Carbon Isotope ◽  
Late Cretaceous ◽  
Forest Soils ◽  
Isotope Ratios ◽  
Carbon Isotope Ratios

Rediscovery of Choroterpes atramentum in Costa Rica, type species of Tikuna new genus (Ephemeroptera: Leptophlebiidae: Atalophlebiinae), and its role in the "Great American Inter-change"

Zootaxa ◽  
2005 ◽  
Vol 932 (1) ◽  
pp. 1 ◽  
Author(s):  
HARRY M. SAVAGE ◽  
R. WILLS FLOWERS ◽  
WENDY PORRAS V.
Keyword(s):  
Costa Rica ◽  
Central America ◽  
Late Cretaceous ◽  
Type Species ◽  
New Genus ◽  
South American ◽  
Early Tertiary ◽  
Geological Formation

A new genus, Tikuna, is described based on recent collections of adults and nymphs of Choroterpes atramentum Traver from western Costa Rica. All recent collections are from streams on or near the Nicoya Complex, the oldest geological formation in Lower Central America. Tikuna belongs to a lineage of South American Atalophlebiinae (Leptophlebiidae: Ephemeroptera) whose origin is hypothesized to have been in the late Cretaceous–early Tertiary. Some implications of the distribution of Tikuna for theories on the origin of Costa Rica’s biota are discussed.

Sign in / Sign up

Export Citation Format

Share Document