|Sea scorpion fossil from the Soom Shale,|
South Africa, ~440 m.y. old
Credit: Univesity of Leicester, as reported
in ScienceDaily, 11/29/2010
|Schematic diagram of possible origin of the Soom Shale|
from Gabbott et al., 2010, ref. in text
A few terms: plankton are the organisms that drift in the oceans, seas or bodies of fresh water. There are three primary groups, defined according to their function: phytoplankton that use light for photosynthesis (a "producer"); zooplankton that feed on the phytoplankton (a "consumer"); and bacterioplankton (a "recycler"), which basically recycle the other two types of plankton.
Related posts on this blog: katabatic winds and icebergs,
katabatic winds and Mars.