Cofres para los dioses: excavación, análisis y conservación de los tepetlacalli de Tenochtitlan

The conference provides a comprehensive and detailed account of the excavation and analysis of the tepetlacalli offerings at the Templo Mayor. The speakers are highly qualified professionals with direct involvement in the project, lending credibility to the information presented. The content is rich in specific data, including offering numbers, dates, and material descriptions, which demonstrates a rigorous scientific approach. The argumentation is solid, with clear explanations of the archaeological context and the symbolic interpretations grounded in Mesoamerican cosmology. The use of visual aids, such as photographs and diagrams, enhances the clarity of the presentation. The sources cited are primarily the project’s own publications and the broader archaeological literature, which are appropriate for this type of expert lecture. The title accurately reflects the content, and the presentation maintains a high level of scientific rigor throughout. One minor limitation is that the conference format does not allow for in-depth peer review, but the expertise of the speakers and the recognition of the discovery by international media mitigate this concern. Overall, the information is highly reliable and valuable for both specialists and informed lay audiences.

The title accurately reflects the content, which focuses on the excavation, analysis, and conservation of the tepetlacalli (stone boxes) offering caches at the Templo Mayor.

9/10

The conference is presented by a team of professional archaeologists, biologists, and conservators from the Templo Mayor Project (INAH), with extensive field experience and academic credentials. The content is based on primary excavation data and direct analysis, with clear methodological explanations. The findings are corroborated by the project's long-term research and have been recognized internationally (e.g., Archaeology Magazine's top 10 discoveries of 2024). The presentation is detailed and transparent about the excavation process, though it is a conference format rather than a peer-reviewed publication.

Markers derived by PSI from the transcript: the creator did not define chapters.

• 05:00Introduction by Leonardo López Luján, presenting the speakers and the context of the Templo Mayor Project.
• 15:00Alejandra Aguirre begins the presentation, explaining the background of the 2023 excavations and the earlier finds of offerings 18, 19, and 97.
• 30:00Detailed description of the discovery of offerings 186, 187, and 189, including their location and the absence of serpent-head sculptures in some cases.
• 45:00Discussion of the contents of the offerings: greenstone sculptures, beads, and marine materials, with emphasis on their symbolic meaning.
• 1:00:00Belem Zúñiga presents the analysis of mollusks found in the offerings, linking them to aquatic symbolism and the Atlantic coast.
• 1:15:00Adriana Sanromán discusses conservation challenges and the techniques used to preserve the fragile materials.
• 1:30:00Q&A session with the audience, addressing questions about the offerings' significance and future research.

• Proyecto Templo Mayor (INAH) — The project's official website, providing background on the excavations and publications.
• Arqueología Mexicana — Mentioned in the introduction as a source of related articles and the special issue on historiography.

• López Luján, L. (2005). The Offerings of the Templo Mayor of Tenochtitlan. — A key publication by the project director that aligns with the interpretations presented.

• No discordant sources identified — The information presented is consistent with established archaeological knowledge and the project's own publications.