Table 1 Target extent and efficacy for minimum spanning tree (MST) and longitude–latitude standardisation.
From: Global diversity dynamics in the fossil record are regionally heterogeneous
Target extent | Unstandardised SD (%) | Standardised SD (%) | |
|---|---|---|---|
MST length (km) | |||
West Circumtethys | 23,000 | 16.7 | 1.2 |
East Circumtethys | 23,000 | 33.7 | 1.3 |
Boreal | 10,000 | 35.6 | 9 |
North Panthalassica | 12,000 | 29.6 | 3.4 |
North Panthalassic | 12,000 | 49.9 | 28.6 |
Tangaroan | 3000 | 29.5 | 22.6 |
South Panthalassicb | 2500 | 42.7 | 12.2 |
South Panthalassic | 2500 | 88.7 | 70.1 |
Longitude range (°) | |||
West Circumtethys | 60 | 15.8 | 5.3 |
East Circumtethys | 95 | 5 | 3.6 |
Boreal | 30 | 15.2 | 9.1 |
North Panthalassica | 30 | 34.9 | 34.8 |
North Panthalassic | 30 | 53.2 | 25.6 |
Tangaroan | 30 | 35.1 | 14.6 |
South Panthalassicb | 90 | 9.4 | 9.4 |
South Panthalassic | 90 | 42.4 | 42.1 |
Latitude range (°) | |||
West Circumtethys | 75 | 16.4 | 14.5 |
East Circumtethys | 90 | 12.7 | 11.6 |
Boreal | 35 | 14.4 | 16.7 |
North Panthalassica | 30 | 16.3 | 15.4 |
North Panthalassic | 30 | 31 | 23.4 |
Tangaroan | 10 | 28.7 | 20.1 |
South Panthalassicb | 35 | 15.2 | 15.2 |
South Panthalassic | 35 | 46.8 | 45.6 |
