Palaeoecology and taxonomy of Pentoxylales from the Albian of Antarctica     

Jodie Howe  David J. Cantrill 《Cretaceous Research》2001,22(6):779

Reproductive pentoxylalean material from the Albian Triton Point Formation, Fossil Bluff Group of Alexander Island, Antarctica is the youngest record of this group globally. Leaves are referred to Taeniopteris daintreei McCoy, ovulate reproductive organs to Carnoconites cranwelli Harris, and stem material to Pentoxylon sp. Occurring in leaf litter layers on palaeosol surfaces the sedimentology suggests that pentoxylalean plants grew upon areas of the floodplain distal to the river channel, where they covered the forest floor in a similar habit to modern brambles. The forest floor was shared with Equisetales and liverworts, an abundance of ferns [Cladophlebis Brongniart, Gleichenites Goeppert, Phyllopteroides Medwell, Sphenopteris (Brongniart) Sternberg], as well as angiosperms. Bennettitales, Ginkgoites Seward and Nilssonia Brongniart were rare within these communities, as were coniferous trees.  相似文献   

First evidence of Pentoxylales in Antarctica     

S.N. Césari  C.A. Parica  M.B. Remesal  F.M. Salani 《Cretaceous Research》1998,19(6):733-743

Plant remains from the Byers Peninsula, South Shetlands Islands, are described. These are leaves referred toTaeniopterissp. and female fructifications referred toCarnoconites llambiasiiCésari sp. nov. They are considered to belong to the Pentoxylales, originally described from India, Australia and New Zealand. This is the first record of this group of gymnosperms from Antarctica. The occurrence contributes to further differentiation between floras of this part of Gondwana and Laurasia.  相似文献   

Revision of Early Cretaceous angiosperm remains from the Rajmahal Basin, India, with notes on the palaeoecology of the Pentoxylon plant     

Rashmi SrivastavaValentin A. Krassilov 《Cretaceous Research》2012,33(1):66-71

In India, potential sources of angiosperm macrofossils are the intertrappean cherts of Rajmahal Hills, palynologically and radiometrically dated as Barremian-Aptian. However, our revision of the previously reported flower-like and fruit-like fossils from the Rajmahal Formation does not confirm their angiosperm affinities. Instead they are related to bennettitalean and pentoxylean gymnosperms. At the same time, the underground storage organs and supposed feeding marks on Carnoconites seeds revealed in the course of this study suggest angiosperm-like habits in the Indian Pentoxylon plant.  相似文献