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Earliest Palaeocene purgatoriids and the initial radiation of stem primates.
Wilson Mantilla GP, Chester SGB, Clemens WA, Moore JR, Sprain CJ, Hovatter BT, Mitchell WS, Mans WW, Mundil R, Renne PR. Wilson Mantilla GP, et al. Among authors: sprain cj. R Soc Open Sci. 2021 Feb 24;8(2):210050. doi: 10.1098/rsos.210050. R Soc Open Sci. 2021. PMID: 33972886 Free PMC article.
Intensity of the Earth's magnetic field: Evidence for a Mid-Paleozoic dipole low.
Hawkins LMA, Grappone JM, Sprain CJ, Saengduean P, Sage EJ, Thomas-Cunningham S, Kugabalan B, Biggin AJ. Hawkins LMA, et al. Among authors: sprain cj. Proc Natl Acad Sci U S A. 2021 Aug 24;118(34):e2017342118. doi: 10.1073/pnas.2017342118. Proc Natl Acad Sci U S A. 2021. PMID: 34404726 Free PMC article.