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Authors
Caballero-Ochoa, Andrea Alejandra https://orcid.org/0000-0001-5520-3823
Solís-Marín, Francisco Alonso https://orcid.org/0000-0001-6842-6161
Fragoso-Medina, Amira Jalil https://orcid.org/0000-0001-8570-256X
Vargas, Carlos Andrés Conejeros https://orcid.org/0000-0003-0148-0475
Sánchez, Blanca Estela Buitrón https://orcid.org/0000-0002-7756-3587
Najarro, Dwight Roberto Acosta https://orcid.org/0000-0001-8358-8708
Martínez-Dávalos, Arnulfo https://orcid.org/0000-0002-9481-9548
Rodríguez-Villafuerte, Mercedes https://orcid.org/0000-0003-0499-3698
Jiménez-López, José Carlos https://orcid.org/0000-0002-8113-0063
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Article History
Received: 21 May 2025
Revised: 12 August 2025
Accepted: 19 August 2025
First Online: 1 November 2025
Declarations
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: No ethical statement was reported.
: The author declares no conflict of interest.
: All necessary permits for sampling and observational field studies have been obtained by the authors from the competent authorities and are mentioned in the acknowledgements, if applicable.
: This article is licensed under a Creative Commons Attribution.
: The specimen is deposited at Colección Nacional de Equinodermos de México, Instituto de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México (CNE, ICML-UNAM) and can be accessed via the specimen catalog number 18490. Supplementary material : X-ray rendered 3D model of calcareous ring of Rynkatorpa felderi Pawson and Vance and Supplementary material : micro-CT volume rendering of calcareous ring.
: AAC-O, FAS-M, BEB-S conceptualized the idea; AM-D, MR-V image creation; AAC-O, FAS-M, AJF-M, CAC-V, AM-D, MR-V, JCJ-L investigation and image editing; BEB-S, DRAN investigation; AAC-O, FAS-M, BEB-S Data analysis; AAC-O wrote the first draft of the manuscript; all authors commented on previous versions of the manuscript. All authors read and approved of the final manuscript.
