Judging by the brownish colour, an amount of vitellin was still contaminating the active fractions.
The newly hatched larva is of a yellowish grey colour, with the head, thorax and legs brownish.
The bud continues to increase in size while the rest of the sprouting locus becomes brownish as it desiccates.
The lower part of the member includes brownish to reddish argillaceous and partly quartz-arenitic interbeds.
The top 14 m consist of purple, argillaceous medium-grained sandstones, some of which are slightly quartz-arenitic, and with rare intercalations of brownish-red mudstones and siltstones.
A minor portion (about 5 %) is represented by brownish semitransparent grains.
Cataclasites are characteristically brownish-green in colour and comprise rock and mineral fragments within a fine-grained matrix.
Furthermore, our trichromatic system may have evolved to allow the detection of brownish-reddish edibles against greenish backgrounds.
