New record of mollusks from the El Molino mammoth site, Parras, Coahuila, Mexico

We present new Late Pleistocene and Holocene records of a land and freshwater malacofauna assemblage from the mammoth bearing site El Molino in Parras, Coahuila, northern Mexico. We identified 19 mollusk taxa, 14 species were found within the Late Pleistocene sediments and 10 species in the differen...

Full description

Saved in:
Bibliographic Details
Published inBoletín de la Sociedad Geológica Mexicana Vol. 74; no. 1; p. A051021
Main Authors Butrón Xancopinca, Perla Guadalupe, Czaja, Alexander, Carolina Aguillón, Martha, Gómez Núñez, Rosario, Vallejo González, Ignacio, Estrada Rodríguez, José Luis
Format Journal Article
LanguageEnglish
Published Sociedad Geológica Mexicana A.C 01.01.2022
Subjects
Geology
Geosciences, Multidisciplinary
paleoreconstruction
Late Pleistocene
Holoceno
terrestrial mollusks
freshwater mollusks
moluscos de agua dulce
paleoreconstrucción
Holocene
Pleistoceno tardío
moluscos terrestres
Online AccessGet full text

Cover

More Information
Summary:We present new Late Pleistocene and Holocene records of a land and freshwater malacofauna assemblage from the mammoth bearing site El Molino in Parras, Coahuila, northern Mexico. We identified 19 mollusk taxa, 14 species were found within the Late Pleistocene sediments and 10 species in the different strata belonging to the Holocene. The gastropods Gastrocopta tappaniana, Pupilla hebes and Habroconus sp. are new Late Pleistocene records for Mexico, the first two being previously recorded for United States Pleistocene deposits. New Mexican Holocene fossil records include Euglesa casertana, Galba humilis, Gastrocopta cristata, Zonitoides arboreus, Hawaiia minuscula, and Deroceras laeve. The habitat requirements of the El Molino site malacofauna assemblage provides additional information on the environmental changes that occurred during the Pleistocene-Holocene transition. Woodland associated, hygrophilic and hydrophilic malacofauna suggest a humid forested and grassland habitat during the Late Pleistocene, which subsequently changed to xeric conditions with the colonization of xerophytic and aridity-tolerant aquatic species during and after the Pleistocene-Holocene transition at the study area.
ISSN:1405-3322
DOI:10.18268/BSGM2022v74n1a051021