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Cryptokerpia sarlaccophora gen. et sp. nov., an enigmatic type of gymnosperm leaf, is described based on dispersed cuticles retrieved from bulk-macerated samples of the Umm Irna Formation (Upper Permian) of the Dead Sea Region, Jordan. The most prominent diagnostic feature of the new genus is that stomatal pores are sunken deep into the epidermis at the bottom of multi-cellular stomatal crypts that...
Hypotheses about the Permian–Triassic floral turnover range from a catastrophic extinction of terrestrial plant communities to a gradual change in floral composition punctuated by intervals indicating dramatic changes in the plant communities. The shallow marine Permian–Triassic succession in the Amb Valley, Salt Range, Pakistan, yields palynological suites together with well-preserved cuticle fragments...
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