Layer Estimates:

Layer: Continents (ID:0)
Count: 840
Extent:

XMin: -20037507.0672
YMin: -20602628.651
XMax: 20037507.0672
YMax: 18418385.2707
Spatial Reference: 102100 (3857)

Layer: Tectonic Plates (ID:1)
Count: 15
Extent:

XMin: -20037507.0672
YMin: -30240971.9584
XMax: 20037507.0672
YMax: 30148982.5545
Spatial Reference: 102100 (3857)