Table 1.

Proboscidean samples analyzed in this study

Sample ID	Geographic origin	Date, y before present	Sequencing (source)	No. of mapped reads, million	Average coverage
L. cyclotis_A	Central African Republic	Modern	This study (BI)	906	27.78
L. africana_B	Kenya	Modern	This study (BI)	1,001	30.44
L. africana_C	South Africa	Modern	This study (BI)	1,114	33.42
E. maximus_D	Myanmar	Modern	This study (BI)	1,283	38.94
E. maximus_E	Malaysia (Borneo)	Modern	This study (BI)	1,107	32.20
L. cyclotis_F	Sierra Leone	Modern	This study (BI)	1,074	32.06
M. primigenius_G	Taimyr Peninsula, Russia	∼31,500	This study (HMS)	55	0.60
M. primigenius_H	Alaska, USA	∼44,900	This study (HMS)	27	0.49
M. americanum_I	Alaska, USA	>50,000	This study (IFT, HMS)	399	3.96
E. maximus_L	India*	Modern	(13)	889	27.02
E. maximus_M	India*	Modern	(13)	1,014	30.27
P. antiquus_N	Germany	∼120,000	This study (BI, HMS)	1,399	14.64
P. antiquus_O	Germany	∼120,000	(10)	12	0.14
M. primigenius_P	Oimyakon, Russia	∼44,800	(12)	902	12.77
M. primigenius_Q	Wrangel Island, Russia	∼4,300	(12)	959	19.00
M. primigenius_S	Yamal Peninsula, Russia	∼45,300	This study (IFT, HMS)	132	0.91
M. columbi_U	Wyoming, USA	∼13,400	This study (IFT, HMS)	122	1.53
Mammuthus_V	Wyoming, USA	∼42,400	This study (IFT, HMS)	830	5.86
M. americanum_X	Gulf of Maine, USA	∼13,400	This study (HMS)	71	0.79
E. maximus_Y	Assam, India	Modern	(13)	1,239	35.90
E. maximus_Z	Karnataka, India	Modern	(14)	447	14.58

BI, Broad Institute; HMS, Harvard Medical School; IFT, Illumina Fast Track Services.

^*Exact geographic origin is unknown.