Sentences with phrase «modern conifers»
«That Jeff's UV - B - blast experiment — somewhat of a calculated long shot — produced pollen abnormalities in a modern conifer similar to abnormalities observed in 252 - million - year old microfossils was one of the most exciting things I've seen this decade,» Duijnstee said.
https://www.sciencedaily.com/
This paper says «Our results suggest modern conifer forests may be considerably more vulnerable to anthropogenic ozone layer depletion than expected.»
These findings challenge the paradigm that mass extinctions require kill mechanisms and suggest modern conifer forests may be considerably more vulnerable to anthropogenic ozone layer depletion than expected.»
Not exact matches
They were directly preceded by a group known as the gymnosperms, whose mode of reproduction is more rudimentary and whose modern - day representatives include conifers.
This includes the «modern» flowering plants that split off 320 million years ago and which now have a highly complex auxin system: older seed plant types such as conifers, and spore plants such as ferns and the earlier mosses, which are over half a billion years old.
The type of plant it was — more tree fern than conifer — forces a major rethinking of «how modern - scale forests actually came into being,» says Stein.