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| layer of geology | |||
| stage (MichaelBurov); geologic stage (MichaelBurov); geochronological stage (MichaelBurov); stratigraphic stage (MichaelBurov); geological stage (Technically, a stage is a succession of rock strata laid down in a single age on the geologic timescale.: Толща горных пород, образовавшуюся в течение одного геологического века MichaelBurov) | |||
| horizon | |||
| floor (Johnny Bravo) | |||