Upper Jurassic, upper cretaceous and Palaeocene conifer woods from Mexico

Resultado de la investigación: Contribución a una revistaArtículo

1 Cita (Scopus)

Resumen

Although there are reports of permineralised woods in Mesozoic and Cenozoic strata in Mexico, there are few palaeobotanical studies based on coniferous stems. Four taxa of fossil wood from three localities in Mexico are described at the anatomical level and identified taxonomically based on detailed comparisons with woods of extant and fossil taxa. Agathoxylon gilii sp. Nov. And A. jericonse sp. Nov. are determined from the Todos Santos Formation (Upper Jurassic), in Chiapas; A. parrensis sp. Nov. is described from the Las Encinas Formation (Palaeocene) in Coahuila; and Taxodioxylon cabullensis sp. Nov. corresponds with material from the Packard Shale Formation in Sonora. Dominance of Araucariaceae and Cupressaceae in this region during the Mesozoic and early Cenozoic is further supported by leaf records, but these materials may also represent other taxa, like Cheirolepidaceae, which may have araucarioid secondary xylem. Records of Brachyphyllum and/or Pagiophyllum, which may represent araucarioid or cheirolepidaceous taxa, and different cupressaceous leaves, have been collected in rocks of the same period in nearby formations. At present, the amalgamation of isolated organs to form one plant is uncertain and, thus, there is an open challenge to reconstruct the plants and better understand these extinct communities. The new fossil taxa will add to the diversity of extinct plants and conifer communities during the Mesozoic and early Cenozoic in low-latitude North America.

Idioma originalInglés
Páginas (desde-hasta)399-418
Número de páginas20
PublicaciónEarth and Environmental Science Transactions of the Royal Society of Edinburgh
Volumen108
N.º4
DOI
EstadoPublicada - 1 feb 2019

Huella dactilar

Paleocene
coniferous tree
Jurassic
fossil
Cretaceous
xylem
shale
stem
rock
material
comparison
organ
North America

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title = "Upper Jurassic, upper cretaceous and Palaeocene conifer woods from Mexico",
abstract = "Although there are reports of permineralised woods in Mesozoic and Cenozoic strata in Mexico, there are few palaeobotanical studies based on coniferous stems. Four taxa of fossil wood from three localities in Mexico are described at the anatomical level and identified taxonomically based on detailed comparisons with woods of extant and fossil taxa. Agathoxylon gilii sp. Nov. And A. jericonse sp. Nov. are determined from the Todos Santos Formation (Upper Jurassic), in Chiapas; A. parrensis sp. Nov. is described from the Las Encinas Formation (Palaeocene) in Coahuila; and Taxodioxylon cabullensis sp. Nov. corresponds with material from the Packard Shale Formation in Sonora. Dominance of Araucariaceae and Cupressaceae in this region during the Mesozoic and early Cenozoic is further supported by leaf records, but these materials may also represent other taxa, like Cheirolepidaceae, which may have araucarioid secondary xylem. Records of Brachyphyllum and/or Pagiophyllum, which may represent araucarioid or cheirolepidaceous taxa, and different cupressaceous leaves, have been collected in rocks of the same period in nearby formations. At present, the amalgamation of isolated organs to form one plant is uncertain and, thus, there is an open challenge to reconstruct the plants and better understand these extinct communities. The new fossil taxa will add to the diversity of extinct plants and conifer communities during the Mesozoic and early Cenozoic in low-latitude North America.",
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Upper Jurassic, upper cretaceous and Palaeocene conifer woods from Mexico. / Riós-Santos, César; Cevallos Ferriz, Sergio Rafael silvestre.

En: Earth and Environmental Science Transactions of the Royal Society of Edinburgh, Vol. 108, N.º 4, 01.02.2019, p. 399-418.

Resultado de la investigación: Contribución a una revistaArtículo

TY - JOUR

T1 - Upper Jurassic, upper cretaceous and Palaeocene conifer woods from Mexico

AU - Riós-Santos, César

AU - Cevallos Ferriz, Sergio Rafael silvestre

PY - 2019/2/1

Y1 - 2019/2/1

N2 - Although there are reports of permineralised woods in Mesozoic and Cenozoic strata in Mexico, there are few palaeobotanical studies based on coniferous stems. Four taxa of fossil wood from three localities in Mexico are described at the anatomical level and identified taxonomically based on detailed comparisons with woods of extant and fossil taxa. Agathoxylon gilii sp. Nov. And A. jericonse sp. Nov. are determined from the Todos Santos Formation (Upper Jurassic), in Chiapas; A. parrensis sp. Nov. is described from the Las Encinas Formation (Palaeocene) in Coahuila; and Taxodioxylon cabullensis sp. Nov. corresponds with material from the Packard Shale Formation in Sonora. Dominance of Araucariaceae and Cupressaceae in this region during the Mesozoic and early Cenozoic is further supported by leaf records, but these materials may also represent other taxa, like Cheirolepidaceae, which may have araucarioid secondary xylem. Records of Brachyphyllum and/or Pagiophyllum, which may represent araucarioid or cheirolepidaceous taxa, and different cupressaceous leaves, have been collected in rocks of the same period in nearby formations. At present, the amalgamation of isolated organs to form one plant is uncertain and, thus, there is an open challenge to reconstruct the plants and better understand these extinct communities. The new fossil taxa will add to the diversity of extinct plants and conifer communities during the Mesozoic and early Cenozoic in low-latitude North America.

AB - Although there are reports of permineralised woods in Mesozoic and Cenozoic strata in Mexico, there are few palaeobotanical studies based on coniferous stems. Four taxa of fossil wood from three localities in Mexico are described at the anatomical level and identified taxonomically based on detailed comparisons with woods of extant and fossil taxa. Agathoxylon gilii sp. Nov. And A. jericonse sp. Nov. are determined from the Todos Santos Formation (Upper Jurassic), in Chiapas; A. parrensis sp. Nov. is described from the Las Encinas Formation (Palaeocene) in Coahuila; and Taxodioxylon cabullensis sp. Nov. corresponds with material from the Packard Shale Formation in Sonora. Dominance of Araucariaceae and Cupressaceae in this region during the Mesozoic and early Cenozoic is further supported by leaf records, but these materials may also represent other taxa, like Cheirolepidaceae, which may have araucarioid secondary xylem. Records of Brachyphyllum and/or Pagiophyllum, which may represent araucarioid or cheirolepidaceous taxa, and different cupressaceous leaves, have been collected in rocks of the same period in nearby formations. At present, the amalgamation of isolated organs to form one plant is uncertain and, thus, there is an open challenge to reconstruct the plants and better understand these extinct communities. The new fossil taxa will add to the diversity of extinct plants and conifer communities during the Mesozoic and early Cenozoic in low-latitude North America.

KW - Araucariaceae

KW - Cupressaceae

KW - conifers

KW - permineralised woods

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U2 - 10.1017/S1755691018000245

DO - 10.1017/S1755691018000245

M3 - Artículo

AN - SCOPUS:85055002449

VL - 108

SP - 399

EP - 418

JO - Earth and Environmental Science Transactions of the Royal Society of Edinburgh

JF - Earth and Environmental Science Transactions of the Royal Society of Edinburgh

SN - 1755-6910

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ER -