Eoborus Explained

Eoborus is a fossil genus of medium-sized air-breathing land snails, terrestrial pulmonate gastropods in the family Strophocheilidae. Eoborus is the oldest fossil record of Strophocheilidae, dating from the Middle Paleocene of Brazil (Itaboraí Basin) and Uruguay (Santa Lucía Basin).^[1] The Brazilian species, alongside Eoborus charruanus from Uruguay, are the oldest fossil record of the family.

The small size and large umbilicus of Eoborus are its most remarkable characteristics; it is considered primitive in the family Strophocheilidae.

Species

Species within the genus Eoborus include:

• Eoborus berroi Klappenbach & Olazarri, 1986 - from Uruguay
• Eoborus charruanus (Frenguelli, 1930) - from Uruguay and Argentina - type species of genus
• Eoborus fusiforme Salvador & Simone, 2013^[2] - from Brazil
• Eoborus rotundus Salvador & Simone, 2012 - from Brazil
• Eoborus sanctijosephi (Maury, 1935)^[3] - from Brazil

Some authors note that two other species, Strophocheilus chubutensis and Strophocheilus hauthali could also belong to Eoborus.^[1]

Notes and References

1. Martínez . Sergio . Veroslavsky . Gerardo . Verde . Mariano . Primer registro del Paleoceno en el Uruguay: paleosuelos calcáreos fosilíferos en la cuenca de Santa Lucía . First Paleocene record in Uruguay: fossiliferous calcareous paleosols in the Santa Lucía basin . Spanish . Revista Brasileira de Geociências . 12 June 2017 . 27 . 3 . 292–302 . 25 November 2020 . 5 June 2023 . https://web.archive.org/web/20230605053952/https://www.ppegeo.igc.usp.br/index.php/rbg/article/view/11295 . dead .
2. Salvador . Rodrigo Brincalepe . Simone . Luiz Ricardo Lopes de . Taxonomic revision of the fossil pulmonate mollusks of Itaboraí Basin (Paleocene), Brazil . Papéis Avulsos de Zoologia . 2013 . 10.1590/S0031-10492013000200001 . free .
3. Maury . Carlotta Joaquina . New genera and new species of fossil terrestrial Mollusca from Brazil . American Museum Novitates . 1935 . 764 . 1–15 . 2246/4568 .