First extra-Patagonian record of Podocarpaceae fossil wood in the Upper Cenozoic (Ituzaingó Formation) of Argentina

Franco, María Jimena; Brea, Mariana

doi:10.1080/0028825x.2015.1029055

Cited by 11 publications

(11 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Although this fossil wood shows certain similarity to Prumnopityoxylon , Franco & Brea’s42 diagnosis of this genus lacks sufficient detail to separate it from Podocarpoxylon . Any of the wood traits, that have been considered by these authors as diagnostic for Prumnopityoxylon (i.e.…”

Section: Discussionmentioning

confidence: 95%

“…It follows from its unique character combinations that the late Eocene wood from Donghuai can be recognized as a new species named here as Podocarpoxylon donghuaiense . Although this fossil wood shows certain similarity to Prumnopityoxylon , Franco & Brea’s 42 diagnosis of this genus lacks sufficient detail to separate it from Podocarpoxylon . Any of the wood traits, that have been considered by these authors as diagnostic for Prumnopityoxylon (i.e.…”

Section: Discussionmentioning

confidence: 95%

“…The fossil wood described here is characterized by an absence of axial parenchyma and by the cross-fields with cupressoid and/or taxodioid pits. Within fossil woods ascribed to Podocarpaceae, these traits are found in some species of the genus Podocarpoxylon Gothan 31 32 41 , as well as in the monospecific genus Prumnopityoxylon Franco & Brea that was recently described from the Upper Cenozoic of Argentina 42 . Moreover, this combination of wood traits has also been reported for Phyllocladoxylon annulatus Patton from the Oligocene of Australia 43 .…”

Section: Discussionmentioning

confidence: 99%

See 2 more Smart Citations

First record of Podocarpoid fossil wood in South China

Jin

Quan

et al. 2016

Sci Rep

View full text Add to dashboard Cite

A new species of fossil conifer wood, Podocarpoxylon donghuaiense sp. nov., is described from the late Eocene of Nadu Formation in Baise Basin of the Guangxi Province, South China. This fossil wood is characterized by distinct growth rings, circular to oval tracheids in cross section, 1–2-seriate opposite pits on radial tracheid walls, uniseriate (rarely biseriate) rays, smooth end walls of ray parenchyma cells, and the absence of resin ducts, suggesting its affinity to Podocarpaceae. The new species is distinctive from other Cenozoic woods ascribed to this family by the combination of distinctive growth rings, the absence of axial parenchyma, the occurrence of bordered pits on tangential tracheid walls, and the occurrence of 3–4 cuppressoid or taxodioid pits on cross-fields. This represents the first record of podocarpoid fossil wood in South China and provides fossil evidence for the early dispersal and diversification of Podocarpaceae in eastern Asia as well as for mild temperate seasonal climate in this region during the late Eocene.

show abstract

Section: Discussionmentioning

confidence: 95%

Section: Discussionmentioning

confidence: 95%

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

First record of Podocarpoid fossil wood in South China

Jin

Quan

et al. 2016

Sci Rep

View full text Add to dashboard Cite

show abstract

“…Por lo tanto, si consideramos el paleoambiente y los elementos comunes entre la Formación San José y Paraná se infiere para la región del norte de Argentina (Anzótegui, 1990(Anzótegui, , 2006Anzótegui y Herbst, 2004;Zucol et al, 2004; 8 Anzótegui y Aceñolaza, 2008;Franco y Brea, 2008;Mautino, 2010;Vergel et al, 2015) (Anzótegui, 1998(Anzótegui, , 2006Starck y Anzótegui, 2001;Galli et al, 2011;Horn, 2014). En cambio en la Formación Ituzaingó, principalmente los leños fósiles señalan la presencia de bosques xerófilos e hidrófilos en un clima cálido húmedo estacionalmente seco (Franco, 2009(Franco, , 2012Franco y Brea, 2010;Franco et al, , 2014Franco et al, , 2015…”

Section: Análisis De Agrupamientounclassified

Relaciones Paleofloristicas Del Mioceno-Plioceno Del Norte Argentino

Garralla

Anzótegui

Mautino

2016

PEAPA

View full text Add to dashboard Cite

Resumen. Los objetivos de este trabajo son relacionar las paleofloras del Mioceno-Plioceno del norte de la Argentina que caracterizan a cada formación y a cada período, comparar las registradas en el noroeste con las del nordeste a fin de establecer sus diferencias o semejanzas e inferir la evolución florística y paleoambiental a través del intervalo estratigráfico considerado. Las formaciones seleccionadas son las de Paraná e Ituzaingó en el nordeste y las de Anta, San José, Chiquimil, Palo Pintado, Aloformación Playa del Zorro, Andalhuala, del Buey y pozo YPF.SE.x-2 Los Horcones en el noroeste. Se reconocieron 430 especies que fueron volcadas como presencia-ausencia en una base de datos en la que se consignó, para cada una de ellas, familia, formación, tipo de fósil, hábito, comunidad vegetal y representante actual más cercano al fósil. Se aplicó el análisis de agrupamiento simultáneo en modo Q para las formaciones y en modo R para las especies, utilizando la medida de Distancia de Sorensen. Las paleofloras analizadas comparten el 15% del total de las especies relevadas. El análisis integral comparativo permitió señalar una diferenciación paleovegetacional y paleoambiental entre ambas regiones. En el noroeste, desde el Mioceno temprano al Plioceno se registraron estepas graminosas, bosques ribereños y bosques secos con estacionalidad y sabanas herbáceas, es decir una manifiesta alternancia de cambios ambientales y vegetacionales relacionados al clima. En el nordeste, en cambio, prevalecen los bosques ribereños y bosques secos con estacionalidad de moderados cambios ambientales.

show abstract

“…The abietinoid pitting with cross-field pits (mostly 1-2 per field), the presence of homocellular rays, and ray cells with smooth walls and scarce axial parenchyma in the wood anatomy allows the assignment of the fossils to genus Podocarpoxylon Gothan, 1905(Petriella, 1972; Del Fueyo, 1998; Bamford & Philippe, 2001;Gnaedinger, 2007;Philippe & Bamford, 2008). The fossils were compared with diverse Podocarpoxylon species that have axial parenchyma (see Table 1 in Gnaedinger, 2007; Table 2 in Franco & Brea, 2015). The wood fossil described for the Meso-Cenozoic of Gondwana with axial parenchyma are: P. mazzonii Fueyo (1998).…”

Section: Comparisonmentioning

confidence: 99%

Fossil forests in the Austral Basin (Argentina) marking a Cenomanian heterogeneous forced regressive surface

et al. 2015

View full text Add to dashboard Cite

The mid-Cretaceous greenhouse period in the southern Patagonia Argentina (Austral Basin) is represented by the Mata Amarilla Formation. It is composed of three informal sections which were deposited in littoral and continental environments. The boundary between the lower and middle sections of the Mata Amarilla Formation shows a drastic reduction in accommodation/sediment supply (A/S) ratio, interpreted as a forced regressive surface. This surface is characterized by a well-developed palaeosol, associated with the extensive preservation of a podocarp-dominated fossil forest over a vast area (more than 5400 km(2) ). Sedimentological and palaeopedological analyses, in conjunction with forest structure, tree density and growth ring analyses, indicate that the mid-Cenomanian forced regression can be distinguished as a non-uniform surface developed over a short period of time. This sequence boundary is recognized through a heterogeneous regional surface, delimited in the western part of the study area by an erosional surface generated by a large lateral channel migration recorded by sheet-like channel deposits with transported logs. By comparison, towards the eastern part of the study area, it appears as a paraconformity bounded by a very mature vertic Alfisol, which may have taken 40-100 ky to develop, and the preservation of a fossil forest in life position with a minimum age of 337 years. It is concluded that the extensive presence of these fossil forests at the same stratigraphic level in a vast region respond to changes in A/S ratio in a forced regressive surface at basin scale.

show abstract

First extra-Patagonian record of Podocarpaceae fossil wood in the Upper Cenozoic (Ituzaingó Formation) of Argentina

Cited by 11 publications

References 28 publications

First record of Podocarpoid fossil wood in South China

First record of Podocarpoid fossil wood in South China

Relaciones Paleofloristicas Del Mioceno-Plioceno Del Norte Argentino

Fossil forests in the Austral Basin (Argentina) marking a Cenomanian heterogeneous forced regressive surface

Contact Info

Product

Resources

About