The Controversial Role of Oxygen in Animal Evolution & Diversification | GEO GIRL

Note: The “How Continental Configuration Affects O2” video that I mention at the end is currently members-only, but will be coming out soon for everyone, don’t worry 😉

Primary references:
Mills and Canfield, 2014: https://doi.org/10.1002/bies.201400101
Cole et al., 2020: https://doi.org/10.1111/gbi.12382
Sperling et al., 2022: https://doi.org/10.1086/721754
Supplementary references:
1. Cloud, 1976: https://pubs.geoscienceworld.org/paleobiol/article-standard/2/4/351/86131/Beginnings-of-biospheric-evolution-and-their
2. Knoll & Carroll, 1999: https://doi.org/10.1126/science.284.5423.2129
3. Knoll, 1992: DOI: 10.1007/978-1-4899-2427-8_3
4. Berkner & Marshall, 1965: https://doi.org/10.1175/1520-0469(1965)022%3C0225:OTOARO%3E2.0.CO;2
6. Ravaux et al., 2013: https://doi.org/10.1371/journal.pone.0064074
7. Sperling & Stockey, 2018: https://doi.org/10.1093/icb/icy088
8. Brocks et al., 2017: https://doi. org/10.1038/nature23457
9. Sperling et al., 2015: https://doi.org/10.1146/annurev-ecolsys-110512-135808
10. Schmidtko et al., 2017: https://www.nature.com/articles/nature21399

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0:00 Video Outline
1:01 Oxygen Control Hypothesis
2:38 Original Evidence for OCH
3:25 Correlation is Not Causation
5:00 O2 Threshold Required for Animals?
7:11 Role of Temperature?
8:19 Role of Primary Production?
9:54 Role of Ca & P Availability?
10:49 Role of Animals?
12:55 O2 Still Main Factor?
14:39 O2 Threshold for Diversity but Not Evolution
18:00 Flipped Evidence for OCH
18:36 Possible Scenarios
19:52 Significance of This Research
20:51 References & Related Videos

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