Cenograms were introduced in 1964 by J.A. Valverde.
Notes on verification
Confirmed via peer-reviewed ScienceDirect article, the original 1964 publication in La Terre et La Vie via Persée, and additional academic citations in Springer's Human Evolution journal. [tier=gold indep_score=0.983 clusters=3 claim_tier=notable]
Sources
- Cenogram (wikipedia)
- https://www.sciencedirect.com/science/article/abs/pii/S0031018208006299 (corroboration)
- https://link.springer.com/article/10.1007/BF02436623 (corroboration)
- https://www.persee.fr/doc/revec_0040-3865_1964_num_18_2_4401 (corroboration)