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Latest Permian Stories

2012-10-01 14:19:07

Recently, a mysterious seed fern, Lepidopteris baodensis sp. nov., dating to more than 251 million years ago (Ma), was discovered at the Baijiagou of Baode, Shanxi, China, from the Upper Permian Sunjiagou Formation. This discovery completely changed the understanding of the stratigraphic distribution of the genus Lepidopteris in China and promoted the taxonomic study of late Paleozoic plants. Since Schimper erected the genus Lepidopteris in 1869, its epidermal structure of subepidermal...

Giant Insects Ruled The Sky Until Evolution Of Birds Kicked In
2012-06-05 04:02:22

Giant insects in ancient days use to be kings of the sky, until the evolution of birds about 150 million years ago. Scientists at the University of California, Santa Cruz found that despite rising oxygen levels, insects eventually lost their grip as the dominate species in the sky. During the late Carboniferous and early Permian periods the skies were littered with 28-inch dragonfly-like insects and other ancient species that were too big to whack with a fly swatter. The authors of...

End-Permian Crisis Recovery Took Earth 10 Million Years
2012-05-28 04:07:34

It took the Earth 10 million years to recover from a cataclysmic event that wiped out 90% of plant and animal life some 250 million years ago, according to new evidence presented Sunday in the journal Nature Geoscience. According to a press release detailing the research, Dr. Zhong-Qiang Chen of the China University of Geosciences in Wuhan and Professor Michael Benton from the University of Bristol discovered that biological recovery from what they dub "the greatest mass extinction of all...


Word of the Day
call-note
  • The call or cry of a bird or other animal to its mate or its young.
'Call-note' is newer than 'bird-call,' which originally referred to 'an instrument for imitating the note of birds' but now also refers to 'the song or cry of a bird.'
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