Layer Estimates:

Layer: MGG core collection (ID:0)
Count: 23923
Extent:

XMin: -179.9999999999
YMin: -76.4989999996502
XMax: 179.996499999675
YMax: 81.7331246997451
Spatial Reference: 4326 (4326)

Layer: rock collection (ID:1)
Count: 10370
Extent:

XMin: -179.251
YMin: -62.7667
XMax: 186.1255
YMax: 59.3219616700001
Spatial Reference: 4326 (4326)

Layer: Antarctic core collection (ID:2)
Count: 7370
Extent:

XMin: -179.98300000015
YMin: -88.3670000002498
XMax: 180.0000000001
YMax: 81.7049999999501
Spatial Reference: 4326 (4326)