Vertebrate fossils from the San José de Gracia quarry, a new Late Cretaceous marine fossil site in Puebla, Mexico
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| Natura: | Artículo científico |
| Lingua: | en |
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Sociedad Geológica Mexicana, A.C.
2020
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| author | Jesús Alvarado-Ortega |
| author_facet | Jesús Alvarado-Ortega |
| contents | Vertebrate fossils from the San José de Gracia quarry, a new Late Cretaceous marine fossil site in Puebla, Mexico Jesús Alvarado-Ortega Kleyton M. Cantalice Jesús Alberto Díaz-Cruz Carlos Castañeda-Posadas Valentina Zavaleta-Villareal Ciencias de la Tierra Puebla Turonian vertebrates Mexcala Formation San José de Gracia quarry The San José de Gracia Quarry, located within the Municipality of Molcaxac, southern Puebla, Mexico, is a new paleontological site discovered about a decade ago. This paper is the first formal scientific contribution of this site. The quarry occupies an area no larger than the two hectares that is exploited for commercial purposes, where slabs are extracted from a marine sequence of cream-brown strata of poorly carbonated clays, with centimetric thickness. Although the upper and lower limits of this sequence are not known; the characteristic lithology and fossil content do not correspond with those of the regional geological units previously reported. Although the fossil association recovered from the San José de Gracia Quarry is composed mostly of fish remains; it also contains ammonites, belemnites, inoceramids, indeterminate ostreids, reptiles and few plant remains. In this work, the first fossil fish remains from this locality are described, including representatives of Enchodus and clupeid both previously known from Mexico; as well as the first record of Dercetis and Xenyllion from this country. In addition, a yaguarasaurine mosasaur is also reported. Based on its fossil content and its lithology, the fossil-bearing strata of the San José de Gracia quarry can be possibly referred to the Mexcala Formation (Morelos-Guerrero Basin) of Turonian age. 2020 artículo científico 1405-3322 https://www.redalyc.org/articulo.oa?id=94366149010 https://www.redalyc.org/journal/943/94366149010/ https://www.redalyc.org/journal/943/94366149010/html/ https://www.redalyc.org/journal/943/94366149010/94366149010.epub https://www.redalyc.org/journal/943/94366149010/movil 10.18268/BSGM2020v72n1a160819 en http://www.redalyc.org/revista.oa?id=943 Boletín de la Sociedad Geológica Mexicana application/pdf Sociedad Geológica Mexicana, A.C. Boletín de la Sociedad Geológica Mexicana (México) Num.1 Vol.72 |
| format | Artículo científico |
| id | redalyc_94366149010 |
| institution | Redalyc |
| language | en |
| publishDate | 2020 |
| publisher | Sociedad Geológica Mexicana, A.C. |
| spellingShingle | Vertebrate fossils from the San José de Gracia quarry, a new Late Cretaceous marine fossil site in Puebla, Mexico Jesús Alvarado-Ortega Ciencias de la Tierra Puebla Turonian vertebrates Mexcala Formation San José de Gracia quarry Vertebrate fossils from the San José de Gracia quarry, a new Late Cretaceous marine fossil site in Puebla, Mexico Jesús Alvarado-Ortega Kleyton M. Cantalice Jesús Alberto Díaz-Cruz Carlos Castañeda-Posadas Valentina Zavaleta-Villareal Ciencias de la Tierra Puebla Turonian vertebrates Mexcala Formation San José de Gracia quarry The San José de Gracia Quarry, located within the Municipality of Molcaxac, southern Puebla, Mexico, is a new paleontological site discovered about a decade ago. This paper is the first formal scientific contribution of this site. The quarry occupies an area no larger than the two hectares that is exploited for commercial purposes, where slabs are extracted from a marine sequence of cream-brown strata of poorly carbonated clays, with centimetric thickness. Although the upper and lower limits of this sequence are not known; the characteristic lithology and fossil content do not correspond with those of the regional geological units previously reported. Although the fossil association recovered from the San José de Gracia Quarry is composed mostly of fish remains; it also contains ammonites, belemnites, inoceramids, indeterminate ostreids, reptiles and few plant remains. In this work, the first fossil fish remains from this locality are described, including representatives of Enchodus and clupeid both previously known from Mexico; as well as the first record of Dercetis and Xenyllion from this country. In addition, a yaguarasaurine mosasaur is also reported. Based on its fossil content and its lithology, the fossil-bearing strata of the San José de Gracia quarry can be possibly referred to the Mexcala Formation (Morelos-Guerrero Basin) of Turonian age. 2020 artículo científico 1405-3322 https://www.redalyc.org/articulo.oa?id=94366149010 https://www.redalyc.org/journal/943/94366149010/ https://www.redalyc.org/journal/943/94366149010/html/ https://www.redalyc.org/journal/943/94366149010/94366149010.epub https://www.redalyc.org/journal/943/94366149010/movil 10.18268/BSGM2020v72n1a160819 en http://www.redalyc.org/revista.oa?id=943 Boletín de la Sociedad Geológica Mexicana application/pdf Sociedad Geológica Mexicana, A.C. Boletín de la Sociedad Geológica Mexicana (México) Num.1 Vol.72 |
| title | Vertebrate fossils from the San José de Gracia quarry, a new Late Cretaceous marine fossil site in Puebla, Mexico |
| topic | Ciencias de la Tierra Puebla Turonian vertebrates Mexcala Formation San José de Gracia quarry |
| url | https://www.redalyc.org/articulo.oa?id=94366149010 https://www.redalyc.org/journal/943/94366149010/ https://www.redalyc.org/journal/943/94366149010/html/ https://www.redalyc.org/journal/943/94366149010/94366149010.epub https://www.redalyc.org/journal/943/94366149010/movil |