Ginkgoalean woods from the Jurassic of Argentina: Taxonomic considerations and palaeogeographical distribution

Gnaedinger, Silvia Cristina

doi:10.1016/j.geobios.2011.01.007

Cited by 16 publications

(14 citation statements)

References 25 publications

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“…This is also the case for Ginkgophytoxylon Vozenin-Serra, Broutin et Toutin-Morin, which was erected based on a type from the Permian of France33. Ginkgomyeloxylon Giraud et Hankel, although diagnosed as having a “ Ginkgo type of wood”, is based on a type with strongly araucarian radial pitting1534. Similarly, Ginkgoxylpropinquus Savidge, despite its diagnosis, is based on a type with Steinkerne -preserved araucarian radial pitting35.…”

Section: Resultsmentioning

confidence: 99%

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A Jurassic wood providing insights into the earliest step in Ginkgo wood evolution

Jiang

Wang

Philippe

et al. 2016

Sci Rep

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The fossil record of Ginkgo leaf and reproductive organs has been well dated to the Mid-Jurassic (170 Myr). However, the fossil wood record that can safely be assigned to Ginkgoales has not yet been reported from strata predating the late Early Cretaceous (ca. 100 Myr). Here, we report a new fossil wood from the Mid-Late Jurassic transition deposit (153–165 Myr) of northeastern China. The new fossil wood specimen displays several Ginkgo features, including inflated axial parenchyma and intrusive tracheid tips. Because it is only slightly younger than the oldest recorded Ginkgo reproductive organs (the Yima Formation, 170 Myr), this fossil wood very probably represents the oldest bona fide fossil Ginkgo wood and the missing ancestral form of Ginkgo wood evolution.

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Section: Resultsmentioning

confidence: 99%

“…This profusion of works indicates the strong and lasting interest that the palaeobotany community has in Ginkgo wood evolution51415.…”

mentioning

confidence: 99%

A Jurassic wood providing insights into the earliest step in Ginkgo wood evolution

Jiang

Wang

Philippe

et al. 2016

Sci Rep

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“…Eastern Gondwana: Fig. 23) through that interval; however, that is not true for Western Gondwana (Zamuner et al 2001, Gnaedinger 2012.…”

Section: Inclusion Of Johnsto Nia Coriacea In Dicroidium Was Supportementioning

confidence: 98%

Megaflora of the Australian Triassic–Jurassic: a taxonomic revision

Pattemore

2016

Acta Palaeobotanica

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ABSTRACT. Umkomasiaceans are the most commonly recorded components of Gondwanan Triassic floras but they are not represented subsequently in that region. Their diversity appears to have substantially declined prior to the Rhaetian. Lower and Middle Jurassic floras in Australia and elsewhere in Gondwana are strikingly different from those of the Triassic, comprising ferns, lycopods, conifers, cycads, and bennettitaleans. The fern Cladophlebis Brongniart 1849 emend. Seward 1894 dominated coal-forming paludal environments during the Middle Jurassic in Queensland and it is one of the most commonly preserved plants in the Eastern Gondwanan Jurassic. Ginkgoaleans were present in Eastern Gondwana until near the end-Triassic but were absent below ca 60°S palaeolatitude during the Early and Middle Jurassic.The type specimen of Dicroidium superbum (Shirley 1898) Townrow 1957 emend. nov. has been inaccurately represented in the published record. Consequently, many specimens belonging to the species have been incorrectly assigned to other umkomasiacean species. Misidentifications and considerably enlarged circumscriptions of some species have resulted in an erroneous and simplistic morpho-continuum concept supposedly linking umkomasiacean fronds. Several commonly occurring umkomasiacean species are re-assessed with particular attention to their type specimens, two of which are accurately figured here for the first time. This re-assessment, together with evidence from allied fructifications and wood, supports the view that umkomasiacean fronds belong to several genera. Most umkomasiacean lineages probably terminated prior to the Rhaetian; however, Zuberia Frenguelli 1943 emend. Artabe 1990 persisted to near the close of the Triassic.

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“…In the fossil woods, anatomical changes were also M A N U S C R I P T A C C E P T E D ACCEPTED MANUSCRIPT detected, with mixed types giving place to the abietinoid ones (Zhou, 2009;Gnaedinger, 2012).…”

Section: Occupation Of the Gondwanaland By The Ginkgophyta In The Trimentioning

confidence: 99%

“…x x x x Retallack 1980;Anderson & Anderson, 1983;Herbst et al 2001; Barone-Nugent et al 2003 M A N U S C R I P T Süss et al (9) x Süss et al 2009;Gnaedinger 2012 Primoginkgoxylon muthamii Süss et al x Süss et al 2009;Gnaedinger 2012 Primoginkgoxylon shimbaense Süss et al x Süss et al 2009;Gnaedinger 2012 Reproductive structures Hamshawvia Anderson & Anderson (ovulate cone) x…”

Section: Epidermis (3)mentioning

confidence: 99%

First record of Ginkgo-related fertile organs (Hamshawvia, Stachyopitys) and leaves (Baiera, Sphenobaiera) in the Triassic of Brazil, Santa Maria formation

Barboni

Dutra

2015

Journal of South American Earth Sciences

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Ginkgoalean woods from the Jurassic of Argentina: Taxonomic considerations and palaeogeographical distribution

Cited by 16 publications

References 25 publications

A Jurassic wood providing insights into the earliest step in Ginkgo wood evolution

A Jurassic wood providing insights into the earliest step in Ginkgo wood evolution

Megaflora of the Australian Triassic–Jurassic: a taxonomic revision

First record of Ginkgo-related fertile organs (Hamshawvia, Stachyopitys) and leaves (Baiera, Sphenobaiera) in the Triassic of Brazil, Santa Maria formation

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