The Oman Gharif mixed paleoflora: a useful tool for testing Permian Pangea reconstructions

Berthelin, M.; Broutin, Jean; Kerp, Hans; Crasquin, Sylvie; Platel, Jean-Pierre; Roger, Jack

doi:10.1016/s0031-0182(03)00314-6

Cited by 59 publications

(17 citation statements)

References 19 publications

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“…North Gondwanan ecosystems (Morocco, Niger) had closer affinities with Euramerican ecosystems (Southern Alps, Zechstein, South Urals) than to south Gondwanan (Karoo Basin, India, Brazil) ecosystems. The presence of communities with mixed compositions along the northern Pangaean coast had been observed already for the plant assemblages; for example, in Turkey, the Arabian Peninsula, New Guinea, central Tibet, and China (Durante, 1983;Wang, 1985;Berthelin et al, 2003;Kerp, 2006;Abu Hamad et al, 2008;Srivastava and Agnihotri, 2010;Wang, 2010). The Laos ecosystem shows affinity with Karoo-type ecosystems, a condition probably inherited before the northward migration of the various continental blocks of southeastern Asia from the northeastern margin of Gondwana (Metcalfe, 2013).…”

Section: Late Permian Biogeographymentioning

confidence: 64%

“…Plant fossil assemblages have been described from the Germanic Basin (mostly Germany and England; e.g., Stoneley, 1958;Haubold and Schaumberg, 1985;Schweitzer, 1986;Uhl and Kerp, 2002 and ref. therein), Italy (e.g., Visscher et al, 2001;Kustatscher et al, 2012Kustatscher et al, , 2014; Oman and Jordan (Berthelin et al, 2003;Kerp, 2006;Hamad et al, 2008), China (Sun, 2006;Deng et al, 2009), Brazil (Archangelsky, 1986;Rösler, 1989, 2000;Langer et al, 2008), Antarctica (McLoughlin et al, 1997;Manus et al, 2002), South Africa (Anderson and Anderson, 1985;Prevec et al, 2009Prevec et al, , 2010, Laos (Bercovici et al, 2012), and Australia (Beattie, 2007). Notably, the lack of plant and animal fossil co-occurrence, or alternatively their extremely low diversity, prevents the full reconstruction of terrestrial ecosystems for most of these sites.…”

Section: Introductionmentioning

confidence: 99%

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Late Permian (Lopingian) Terrestrial Ecosystems: A Global Comparison With New Data From the Low Latitude Bletterbach Biota

Petti¹,

Bernardi²,

Kustatscher³

et al. 2017

Geological Society of America Abstracts With Programs

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Keywords:Tetrapoda flora phytoprovinces plant-insect interactions climate endemism latitudinal diversity gradient A B S T R A C TThe late Palaeozoic is a pivotal period for the evolution of terrestrial ecosystems. Generalised warming and aridification trends resulted in profound floral and faunal turnover as well as increased levels of endemism. The patchiness of well-preserved, late Permian terrestrial ecosystems, however, complicates attempts to reconstruct a coherent, global scenario. In this paper, we provide a new reconstruction of the Bletterbach Biota (Southern Alps, NE Italy), which constitutes a unique, low-latitude record of Lopingian life on land. We also integrate floral, faunal (from skeletal and footprint studies), and plant-insect interaction data, as well as global climatic interpretations, to compare the composition of the 14 best-known late Permian ecosystems. The results of this ecosystem-scale analysis provide evidence for a strong correlation between the distribution of the principal clades of tetrapod herbivores (dicynodonts, pareiasaurs, captorhinids), phytoprovinces and climatic latitudinal zonation. We show that terrestrial ecosystems were structured and provincialised at high taxonomic levels by climate regions, and that latitudinal distribution is a key predictor of ecosystem compositional affinity. A latitudinal diversity gradient characterised by decreasing richness towards higher latitudes is apparent: mid-to lowlatitude ecosystems had the greatest amount of high-level taxonomic diversity, whereas those from high latitudes were dominated by small numbers of higher taxa. The high diversities of tropical ecosystems stem from their inclusion of a mixture of late-occurring holdovers from the early Permian, early members of clades that come to prominence in the Triassic, and contemporary taxa that are also represented in higher latitude assemblages. A variety of evidence suggests that the Permian tropics acted as both a cradle (an area with high origination rates) and museum (an area with low extinction rates) for biodiversity.

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Section: Late Permian Biogeographymentioning

confidence: 64%

Section: Introductionmentioning

confidence: 99%

Late Permian (Lopingian) Terrestrial Ecosystems: A Global Comparison With New Data From the Low Latitude Bletterbach Biota

Petti¹,

Bernardi²,

Kustatscher³

et al. 2017

Geological Society of America Abstracts With Programs

View full text Add to dashboard Cite

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“…In the palaeobotanical literature, investigations include the Hazro flora in the study area (Wagner, 1959(Wagner, , 1962Archangelsky and Wagner, 1983), the Unayzah flora in Saudi Arabia (El-Khayal et al, 1980;Lemoigne 1981a, b), the Mamal flora in Kashmir (Singh et al, 1982), certain recent reports on the Gharif mixed flora in Oman (Berthelin et al, 2003;2006a, b), and the Late Permian Dicroidium flora from the Dead Sea region, Jordan (Kerp et al, 2006;Abu Hamad et al, 2008). Middle and Late Permian floras from the Middle East contain several floral provinces, although the picture is still incomplete (Kerp et al, 2006).…”

Section: Interpretation and Discussionmentioning

confidence: 99%

Recognition of southern Gondwanan palynomorphs at Gondwana's northern margin—and biostratigraphic correlation of Permian strata from SE Turkey and Australia

Stolle¹

2010

Geological Journal

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This study focuses on the palynology of Guadalupian (Middle Permian) strata of SE Turkey, especially on late Wordian and earliest Capitanian deposits, which are dated by foraminifers and can be chronostratigraphically related to the geological timescale. Herein, palynological species, such as Altitriletes densus, Cymatiosphaera gondwanensis and Praecolpatites sinuosus, previously characteristic for Pakistan, Australia and Antarctica are recorded. Therefore, the Permian biozones of marine fauna and the palynology of SE Turkey and the rest of the Arabian area and Australia are compared and correlated. This long-distance, eastern Gondwana-wide biostratigraphical correlation, conducted for the first time in the Guadalupian epoch in this study, showed that Corisaccites alutas has a similar Last Occurrence Datum in SE Turkey and in Australia. The correlation also showed that in the late Wordian a number of species were present throughout eastern Gondwana, whereas the distribution of other certain species was influenced by provincialism. Hence, it may be concluded that certain species of parent plants probably co-occurred Gondwana-wide, while the distribution of others was dependant on climate.

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“…Typical Lebachioid conifers (Rothwell et al, 2005) have been described and reconstructed from the Upper Carboniferous to the Late Permian of Europe and North America. However, additional records have been found in North Africa and the Middle East (El Broutin et al, 1986Broutin et al, , 1998Berthelin et al, 2003), and new sites in Texas (USA) and Blanzy (France) (Bercovici and Broutin, 2007;Looy, 2007), therefore expanding the geographic distribution of Lebachioid walchians at the end of the Paleozoic (Florin, 1938-45;Rothwell, 1982;Mapes and Rothwell, 1984;Rothwell et al, 1997).…”

Section: Permian Outcrops and Conifers Of Mexicomentioning

confidence: 99%

Early Permian conifer remains from Central Mexico and reevaluation of Paleozoic conifer morphotaxa

Hernandez‐Castillo¹,

Silva-Pineda

2014

BSGM

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This paper describes the first Permian walchian conifer from Mexico based on several specimens preserved as compressions/ impressions. The material comes from the Tuzancoa Formation in the state of Hidalgo, Central Mexico. It is described as Calnalia hidalguensis gen. nov. et sp. nov. a new conifer morphotaxon based on isolated lateral branches with leaves. This new conifer has some of the smallest branches and leaves found among previously described walchians. Calnalia hidalguensis has two types of branches (ovoid and deltoid) with simple and helically arranged leaves. Leaves are narrowly triangular to linear in front view, slightly concave and spreading (penultimate shoots) to slightly concave to slightly S-shaped (ultimate shoots), in side view. Leaves range from 3.2 mm long by 0.5 mm wide on penultimate shoots, to 1.3 -2.9 mm long by 0.4 -0.9 mm wide on ultimate shoots, with angles of leaf insertion ranging from 16º to 39º. The new species is most similar to Emporia lockardii Mapes and Rothwell, Walchia goeppertiana Florin, Walchia mucronata Florin, and Otovicia hypnoides Kerp, Poort, Swinkels & Verwer. However, none of these have the same ranges of morphological variation found in the leaves of Mexican species. The new taxon expands the diversity of walchian conifers at the end of the Paleozoic in America, and marks the beginning of new research of Permian floras in Mexico. The presence of C. hidalguensis and other gymnosperms, to be described, reinforces the presence of an arc along the Oaxaquia block that connected Mexico to the North American craton during the late Paleozoic. These new data also allow us to test hypotheses about the origin and evolution of Paleozoic floras in Euramerica.Keywords: conifer, Mexico, morphotaxa, Permian, Walchia. Resumen Este artículo describe la primera conífera pérmica "walchiana" con base en varias compresiones e impresiones fósiles de la Formación Tuzancoa en el Estado de Hidalgo, Centro de México. Se describe como Calnalia hidalguensis gen. nov. et sp. nov., un nuevo morfotaxón de coníferas basados en ramas laterales y hojas. Esta nueva conífera tiene unas de las ramas más pequeñas descritas hasta ahora para los miembros "walchianos" en el registro fósil, y cuenta con dos tipos de ramas (ovoide y deltoide), las cuales portan hojas simples con filotaxia helicoidal. Las hojas son ligeramente triangulares a lineares; lateralmente son ligeramente cóncavas a abiertas (penúltimo orden), y ligeramente cóncavas a ligeramente en forma de "S" (último orden

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The Oman Gharif mixed paleoflora: a useful tool for testing Permian Pangea reconstructions

Cited by 59 publications

References 19 publications

Late Permian (Lopingian) Terrestrial Ecosystems: A Global Comparison With New Data From the Low Latitude Bletterbach Biota

Late Permian (Lopingian) Terrestrial Ecosystems: A Global Comparison With New Data From the Low Latitude Bletterbach Biota

Recognition of southern Gondwanan palynomorphs at Gondwana's northern margin—and biostratigraphic correlation of Permian strata from SE Turkey and Australia

Early Permian conifer remains from Central Mexico and reevaluation of Paleozoic conifer morphotaxa

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