Peer-reviewed research article by Sonia Zarrillo and colleagues in Nature Ecology & Evolution, December 2018, reporting cacao starch grains, theobromine residues and ancient DNA about 5,300 years old from the Santa Ana-La Florida site in southeast Ecuador. It is a primary report in a leading peer-reviewed journal, so it sits at the top reliability tier.
Facts
AuthorSonia Zarrillo
PublisherNature Ecology & Evolution
Publication Year2018
URLhttps://www.nature.com/articles/s41559-018-0697-x
Source Typereference
Reliability Tier1
Sources
The use and domestication of Theobroma cacao during the mid-Holocene in the upper Amazon (Nature Ecology & Evolution)
Claims Backed By This Source (15 claims)
This source backs 15 claims across the atlas. As facts: 8 well-attested, 2 partially Attested. Plus 5 entities citing it as a general reference with no single fact or relationship attached.
Disposition By Topic
- Ingredients, 8 claims: 1 well-attested, 2 partially Attested, 5 general references.
- Sources, 7 claims: 7 well-attested.
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