C-13 AND O-18 IN DINOSAUR, CROCODILE, AND BIRD EGGSHELLS INDICATE ENVIRONMENTAL CONDITIONS

[1] CARBON ISOTOPE FRACTIONATION IN FORMATION OF AMINO ACIDS BY PHOTOSYNTHETIC ORGANISMS [J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 1961, 47 (05) : 623 - &

[2] BRINKMANN R, 1959, ABRISS GEOLOGIE

[3] Colbert Edward, 1968, MEN DINOSAURS

[4] DANSGAARD W, 1964, TELLUS, V16, P436

[5] Gignoux M, 1955, STRATIGRAPHIC GEOLOG

[6] LAPPARENT AFD, 1967, CR HEBD ACAD SCI, V245, P546

[7] MARSDEN ML, 1967, NAT GEOGR MAG, V132, P443

[8] Silverman S., 1958, AM ASS PET GEOL B, V42, P998

[9] TOURTELOT HA, 1969, GEOL SOC AM BULL, V80, P1903, DOI 10.1130/0016-7606(1969)80[1903:DOOACI]2.0.CO

[10] 2

[1] CARBON ISOTOPE FRACTIONATION IN FORMATION OF AMINO ACIDS BY PHOTOSYNTHETIC ORGANISMS [J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 1961, 47 (05) : 623 - &

[2] BRINKMANN R, 1959, ABRISS GEOLOGIE

[3] Colbert Edward, 1968, MEN DINOSAURS

[4] DANSGAARD W, 1964, TELLUS, V16, P436

[5] Gignoux M, 1955, STRATIGRAPHIC GEOLOG

[6] LAPPARENT AFD, 1967, CR HEBD ACAD SCI, V245, P546

[7] MARSDEN ML, 1967, NAT GEOGR MAG, V132, P443

[8] Silverman S., 1958, AM ASS PET GEOL B, V42, P998

[9] TOURTELOT HA, 1969, GEOL SOC AM BULL, V80, P1903, DOI 10.1130/0016-7606(1969)80[1903:DOOACI]2.0.CO

[10] 2