Davallia (Polypodiales: Davalliaceae) macrofossils from Early Miocene Otago (New Zealand) with in situ spores

Conran, John G.; Kaulfuß, Uwe; Bannister, Jennifer M.; Mildenhall, Dallas C.; Lee, Daphne E.

doi:10.1016/j.revpalbo.2010.06.001

Cited by 29 publications

(15 citation statements)

References 48 publications

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“…The extant genus occurs in the tropics and subtropics of Eurasia, Africa and Australia-New Zealand. Fossils from early Miocene deposits of New Zealand with preserved sori were described by Conran et al (2010). Although the gross morphological similarity of the heredescribed fronds with Davallia is conspicuous, according to H. Schneider (pers.…”

Section: Davallia Haidingerimentioning

confidence: 99%

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The early Miocene flora of Güvem (Central Anatolia, Turkey): a window into early Neogene vegetation and environments in the Eastern Mediterranean

Denk¹,

Güner²,

Kvaček³

et al. 2017

Acta Palaeobotanica

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ABSTRACT. The early Burdigalian (MN3) plant assemblage of the Güvem area (northwestern Central Anatolia) is preserved in lacustrine sediments of the Dereköy pyroclastics. Its age is well constrained by radiometric dates of basaltic rocks bracketing the pyroclastics, making the Güvem flora one of the extremely few precisely dated early Miocene floras in the Mediterranean region. The rich assemblage of impression fossils comprises ferns and fern allies (2 species), gymnosperms (12 spp.) and angiosperms (129 spp.). Ilex miodipyrena sp. nov. is described as a new fossil-species. The most diverse families in the assemblage are the Fagaceae with 12 taxa and the Fabaceae with 12 leaf morphotypes and one fruit taxon. Aquatic plants are represented by seven taxa, riparian (including palms) and swamp forest elements by >35 taxa, and lianas by three taxa (Smilax spp., Chaneya). The relatively large number of aquatic and riparian/swamp elements is congruent with the rich fish, amphibian and reptile record of the Güvem area. Another characteristic feature of the plant assemblage is the presence of various lobed leaves which show similarities with modern species of different families (e.g. Alangium, various Malvales). Trees and shrubs growing on well-drained soils and forming closed-canopy and open-canopy forests are the most diversified group (>70 taxa). In terms of number of specimens in the collection and based on field observations, by far the most abundant leaf fossils belong to evergreen oaks of Quercus drymeja and Q. mediterranea and to various types of foliage that cannot be assigned to a particular extant or extinct genus of Fagaceae. These sclerophyllous trees must have covered vast areas surrounding the wetlands that developed during the early Miocene in the Güvem Basin. Based on a recent reassessment of the ecology and taxonomic affinity of these trees, they are considered to reflect humid temperate climatic conditions but with a brief drier season during the winter months. These forests are more similar to the laurel forests of the southeastern United States and those stretching in a narrow belt south of the Himalayas to eastern central China. The large number of Fabaceae may indicate the presence of warm subtropical environments but this is difficult to assess, as they are known for having wide ecological ranges today and in the past. All in all, a larger part of the plant taxa point to forested vegetation. This is in agreement with previous palynological studies which detected only small amounts of herbaceous and grass pollen. Open patches of vegetation may have been restricted to river banks and to rocky areas in a volcanic landscape. The biogeographic patterns detected for the early Miocene of the Güvem assemblage are manifold; most taxa are widespread Northern Hemispheric elements. A substantial part of the species migrated from Asia into Europe during the (late) Paleogene and reached Anatolia during the early Miocene (Fagus, Paliurus, Chaneya, Ailanthus, Quercus kubinyii, Davallia haidingeri, Acer angustilo...

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Section: Davallia Haidingerimentioning

confidence: 99%

“…In addition to the type locality, this species is known only from the middle Miocene of southern Bulgaria (Bozukov & Ivanov 1995; foliage and in situ spores) and from Güvem. At the same time, Davallia is known from early Miocene deposits of New Zealand (Conran et al 2010).…”

mentioning

confidence: 99%

The early Miocene flora of Güvem (Central Anatolia, Turkey): a window into early Neogene vegetation and environments in the Eastern Mediterranean

Denk¹,

Güner²,

Kvaček³

et al. 2017

Acta Palaeobotanica

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“…Pole 1993Pole , 1996Bannister et al 2005Bannister et al , 2009Conran et al 2009, Conran et al 2010). The fauna includes freshwater sponges, insects, spiders, and at least three different types of fish Lindqvist & Lee 2009;unpubl.…”

Section: Locality and Agementioning

confidence: 99%

Aneurussp. from the early Miocene Foulden Maar, New Zealand: the first Southern Hemisphere record of fossil Aradidae (Insecta: Hemiptera: Heteroptera)

Kaulfuß

Wappler

Heiss

et al. 2011

Journal of the Royal Society of New Zealand

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“…The Foulden Maar flora was a mesothermal Lauraceae‐dominated rainforest with extinct Podocarpaceae (Pole, ) and epiphytic ferns such as Davallia Sm. (Conran et al., ). Diverse angiosperms (Pole, ; Lee et al., , ) are present as leaves, flowers, fruit, and seeds (Conran et al., ), with over 100 pollen taxa identified (Mildenhall et al., ).…”

Section: Discussionmentioning

confidence: 99%

AnAkania(Akaniaceae) inflorescence with associated pollen from the early Miocene of New Zealand

Conran

Kaulfuß

Bannister

et al. 2019

American J of Botany

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PREMISE OF THE STUDY:An Akania-like inflorescence, including flowers with in situ pollen was recovered from the remarkable Konservat-Lagerstätte lacustrine diatomite deposit at Foulden Maar, Otago indicating the presence of Akaniaceae in southern New Zealand during the early Miocene. The flowers, although slightly smaller than the sole modern Australian species, A. bidwillii, contain pollen grains that are very like that taxon. The pollen also resembles that of the monospecific sister genus Bretschneidera from Southeast Asia and India, although that taxon has flowers with very different morphology from this genus. METHODS:The floral morphology of the fossil and in situ pollen grains were compared with flowers and pollen grains from extant species of Akaniaceae and related taxa.

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Davallia (Polypodiales: Davalliaceae) macrofossils from Early Miocene Otago (New Zealand) with in situ spores

Cited by 29 publications

References 48 publications

The early Miocene flora of Güvem (Central Anatolia, Turkey): a window into early Neogene vegetation and environments in the Eastern Mediterranean

The early Miocene flora of Güvem (Central Anatolia, Turkey): a window into early Neogene vegetation and environments in the Eastern Mediterranean

Aneurussp. from the early Miocene Foulden Maar, New Zealand: the first Southern Hemisphere record of fossil Aradidae (Insecta: Hemiptera: Heteroptera)

AnAkania(Akaniaceae) inflorescence with associated pollen from the early Miocene of New Zealand

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