Paucipodia
Encyclopedia
Paucipodia inermis is a lobopod known from the Lower Cambrian Chengjiang lagerstätte
. Its gut is puzzling; in some places, it is preserved in three dimensions, infilled with sediment; whereas in others it may be flat. The cannot result from phosphatisation, which is usually responsible for three-dimensional gut preservation, for the phosphate content of the guts is under 1% – the contents comprise quartz
and muscovite
.
Lagerstätte
A Lagerstätte is a sedimentary deposit that exhibits extraordinary fossil richness or completeness.Palaeontologists distinguish two kinds....
. Its gut is puzzling; in some places, it is preserved in three dimensions, infilled with sediment; whereas in others it may be flat. The cannot result from phosphatisation, which is usually responsible for three-dimensional gut preservation, for the phosphate content of the guts is under 1% – the contents comprise quartz
Quartz
Quartz is the second-most-abundant mineral in the Earth's continental crust, after feldspar. It is made up of a continuous framework of SiO4 silicon–oxygen tetrahedra, with each oxygen being shared between two tetrahedra, giving an overall formula SiO2. There are many different varieties of quartz,...
and muscovite
Muscovite
Muscovite is a phyllosilicate mineral of aluminium and potassium with formula KAl22, or 236. It has a highly-perfect basal cleavage yielding remarkably-thin laminæ which are often highly elastic...
.