Their modern centre of endemism is western LOCATION@1 and LOCATION@2 -LRB- LOCATION@3 -LSB- -RSB- -RRB- , although a relict population , and Eocene fossils suggest a wider ancient distribution .

Their modern centre of endemism is western LOCATION@1 and LOCATION@2 , , although a relict population and Eocene fossil suggest a wider ancient distribution .
