Small Celastraceae and Polygonaceae twigs from the Upper Cenozoic (Ituzaingó Formation) of the La Plata Basin, Argentina

Franco, María Jimena

doi:10.1080/08912963.2017.1313840

Cited by 5 publications

(8 citation statements)

References 38 publications

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“…Other fossil taxa that have a simple perforation plate are Lophopetalumoxylon (Mehrotra et al 1983) and Maytenoxylon (Franco 2018). The first one is characterized by the presence of diffuse porosity, solitary vessels, bordered and alternate intervascular pits, thin apotracheal bands of parenchyma, uniseriate homocellular rays, non-septate thick-walled fibers, and intercellular canals.…”

Section: Resultsmentioning

confidence: 99%

“…On the other hand, Maytenoxylon is a wood with diffuse porosity, mainly solitary vessels, intervascular pits that vary from alternate to opposite, bands of fiber resembling parenchyma that alternate with ordinary fibers, both non-septate and septate ones, diffuse and scanty parenchyma, homocellular rays with some perforated cells (Franco 2018). The identification of Maytenoxylon is supported by the presence of perforated ray cells, which are restricted to Maytenus (Joffily et al 2007).…”

Section: Resultsmentioning

confidence: 99%

“…However, many of the fossils do not show diagnostic characters or their descriptions lack enough detail to consider them as reliable reports. Nevertheless, several newly published records are relevant for the history of the family (e.g., Chambers & Poinar 2016, Franco 2018.…”

Section: O N L I N E F I R S Tmentioning

confidence: 99%

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Fossil record of Celastraceae: evaluation and potential use in molecular calibrations

2021

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Background: Celastraceae is a morphologically heterogeneous family. For this reason, the inclusion of some taxa within this group is controversial. Recently this problem has become significant since its fossil record is recognized as an important source of information for evolutionary studies, especially those using molecular clocks which require a robust, reliable fossil record. Questions: What are the most reliable fossil records of Celastraceae? What morphological characters are used to assign fossils in the family? Study site and dates: Compilation of records contained in paleontological databases, and paleobotanical literature, covering publications from 1869 to 2018. Methods: Published information on the Celastraceae fossil record was compiled and analyzed using the most recent classification system and specialized literature on the family. Results: A total of 168 fossil records were examined, of which nine are proposed for use as molecular clock calibration points. Each specimen has a description based on a character set used for its identification, a photograph and/or illustration, their geological age is well supported, their geographic origin is known, and the specimens are in accredited home institutions with publicly accessible collections. Conclusions: The identification and establishment of relationships between fossil and extant taxa have important limitations that depend on the critical interpretation of morphology in a phylogenetic context. Therefore, it is essential to incorporate only those morphological studies in Celastraceae that help clarify its fossil record.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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Fossil record of Celastraceae: evaluation and potential use in molecular calibrations

2021

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“…A partir de ellos, se elaboró una base de datos integrada por 438 especies fósiles del Mioceno-Pleistoceno provenientes de las formaciones Paraná, Ituzaingó, Anta, San José, Chiquimil, Palo Pintado, Andalhuala, del Buey, Pozo YPF.SE.x-2 Los Horcones y de la Aloformación Playa del Zorro. Ante las reiteradas mencio-nes en , Brea et al (2013); Franco y Brea (2008, 2009; Franco (2009Franco ( , 2017; y Franco et al (2013) de taxones del Mioceno-Pleistoceno del noreste argentino como posibles integrantes de los actuales Bosques Secos Estacionales Neotropicales (BSEN), y considerando la paleoflora censada por las autoras (Anzótegui, Garralla y Mautino) para el norte de Argentina, en el presente trabajo se encara la revisión de la paleoflora arbórea y arbustiva con el fin de hallar los posibles integrantes de este tipo de asociación vegetal. Por otra parte, Prado corroboró y señaló otros taxones que podrían haber formado parte de asociaciones vegetales semejantes a las actuales del Chaco (Prado, 1993a,b;Mogni et al, 2015y DRYFLOR, 2017) y Cerrado (Ratter et al, 1997(Ratter et al, , 2003, estrechamente relacionadas a los BSEN.…”

Section: Issn 2469-0228unclassified

“…(Anzótegui y Lutz, 1988), Maytenus sp. (Franco, 2017), Sebastiania sp. (Anzótegui y Lutz, 1988) y Sorocea sp.…”

Section: Materiales Y Métodosunclassified

Evolución De Bosques Estacionales Secos Neotropicales, Chaco Y Cerrado en El Neógeno Del Centro-Norte De Argentina

Anzótegui¹,

Garalla²,

Mautino³

et al. 2019

PEAPA

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Resumen. El objetivo de esta contribución es la de analizar la flora leñosa fósil (arbórea y arbustiva) neógena del centro-norte de Argentina y relacionarla con la flora de los actuales Bosques Estacionales Secos Neotropicales (BSEN), del Chaco y del Cerrado, a fin de establecer su permanencia y extensión a través del tiempo. A partir de las especies fósiles (polen, impresiones de hojas y de frutos, leños y cutículas) provenientes

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New Records of Moraceae from the Upper Miocene of Northeastern Argentina

Martínez¹

2023

Ameghiniana

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Small Celastraceae and Polygonaceae twigs from the Upper Cenozoic (Ituzaingó Formation) of the La Plata Basin, Argentina

Cited by 5 publications

References 38 publications

Fossil record of Celastraceae: evaluation and potential use in molecular calibrations

Fossil record of Celastraceae: evaluation and potential use in molecular calibrations

Evolución De Bosques Estacionales Secos Neotropicales, Chaco Y Cerrado en El Neógeno Del Centro-Norte De Argentina

New Records of Moraceae from the Upper Miocene of Northeastern Argentina

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