The protoplanets that collided to make the Earth may themselves have had atmospheres and oceans. Venus has vastly more argon and neon than Earth: fossil evidence, perhaps, of protoplanetary atmospheres?
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Genda, H. & Abe, Y. Nature 433, 842–844 (2005).
Lissauer, J. J. Annu. Rev. Astron. Astrophys. 31, 129–174 (1993).
Chen, G. Q. & Ahrens, T. J. Phys. Earth Planet. Int. 100, 21–26 (1997).
Genda, H. & Abe, Y. Icarus 164, 149–162 (2003).
Agnor, C. & Asphaug, E. Astrophys. J. Lett. 613, 157–160 (2004).
Morbidelli, A. et al. Meteorit. Planet. Sci. 35, 1309–1320 (2000).
Nakajima, S., Hayashi, Y. & Abe, Y. J. Atmos. Sci. 49, 2256–2266 (1969).
Pepin, R. O. Icarus 92, 2–79 (1991).
Zahnle, K. J., Kasting, J. F. & Pollack J. B. Icarus 84, 502–527 (1990).
Owen, T. et al. Nature 402, 269–270 (1999).
Wetherill, G. Icarus 46, 70–80 (1981).
Sasaki, S. Icarus 91, 29–38 (1991).
Ballentine, C., Marty, B., Lollar, B. S. & Cassidy, M. Nature 433, 33–38 (2005).
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Zahnle, K. Being there. Nature 433, 814–815 (2005). https://doi.org/10.1038/433814b