A Model of the Effect of Environmental Variables on the Presence of Otters along the Coastline of the Isle of Skye

Table 1

Geological time scale. The seven zones used in this paper are shown in the column marked coastal zones. Ages for the geological periods are shown in millions of years and represent when the corresponding geological period begins. Data based on Eager and Dunning [1].

Years (millions of years)	Period	Epoch	Coastal zones; (zone numbers)
1.64	Quaternary		7. Landslip
		Cainozoic
			6. Tertiary Intrusives
65	Tertiary		5. Tertiary Lavas
146	Cretaceous
205	Jurassic	Mesozoic	4. Mesozoic
251	Triassic
290	Permian
353	Carboniferous	Upper Palaeozoic
395	Devonian
439	Silurian
510	Ordovician	Lower Palaeozoic
550	Cambrian		3. Cambrian
		Precambrian	2. Torridonian
3,000			1. Lewisian/Moine