Table 1. A. Biostratigraphic survey data, with levels of approximately the same age combined; these data are used for secular trend analyses (Figure 6). Age and duration information from Barry et al. 2002. Turtle tallies were kept separately on the cards after the first year of surveying, and the total reptile counts combine numbered records and turtle tallies. NISP_v is the sum of Fish, Mammal, and Total Reptile columns, representing the total number of specimens that could be identified at least to major vertebrate group. B. Raw data by survey level, showing the more detailed breakdown of the 24 levels, some of which are combined in A. C. Reptile data showing proportions of Chelonia, crocodyloids, and a few rare taxa.

1A.
Survey Level	Age (Ma)	Duration	Search Hours	Numbered Records			Turtle Tally	Total Reptile	NISP_V	Scrap	NISP_V / Search Hour
				Fish	Mammal	Reptile
KL07	7.289	0.324	10.25	0	35	0	15	15	50	111	4.88
KL09+KL10	7.561	0.292	7.80	0	27	0	4	4	31	94	3.97
KL08	7.719	0.125	13.30	0	68	8	24	32	100	181	7.52
KL11+KL21	7.949	0.344	18.24	0	157	7	34	41	198	226	10.86
KL12	8.485	0.149	10.42	0	113	3	38	41	154	201	14.78
ML05	8.658	0.123	5.91	0	73	25	0	25	98	187	16.58
KL16	8.733	0.137	10.50	1	79	0	25	25	105	154	10.00
ML06	8.787	0.246	8.34	0	35	9	0	9	44	102	5.28
KL02+KL14	8.840	0.126	10.67	1	82	5	22	27	110	180	10.31
DK01+KL13	9.001	0.155	14.75	0	83	2	26	28	111	224	7.53
KL01	9.184	0.043	9.49	0	100	9	18	27	127	180	13.38
KL03	9.270	0.062	12.92	4	57	15	44	59	120	184	9.29
KL05+06	9.543	0.126	12.84	0	105	18	23	41	146	201	11.37
KL04	9.703	0.109	13.57	0	153	19	23	42	195	301	14.37
KL20	9.784	0.139	11.61	0	37	2	19	21	58	72	5.00
RK01+DH01-2	10.300	0.114	18.89	0	101	14	58	72	177	358	9.37
RK02	10.385	0.124	6.74	2	28	6	17	23	53	48	7.86
Totals			196.24	8	1333	142	390	532	1877	3004	9.56
Total NISPv plus Scrap										4881
1B.
				All Major Groups
Survey Level	Age (Ma)	Duration	Search Hours	Numbered Records			Turtle Tally	Total Reptile	NISP_V	Scrap
				Fish	Mammal	Reptile
KL07	7.289	0.324	10.25		35		15	15	50	111
KL09	7.561	0.292	4.50		10		2	2	12	39
KL10	7.561	0.292	3.30		17		2	2	19	55
KL08	7.719	0.125	13.30		68	8	24	32	100	181
KL11	7.949	0.344	11.74		116	2	23	25	141	137
KL21	7.949	0.344	6.50		41	5	11	16	57	89
KL12	8.485	0.149	10.42		113	3	38	41	154	201
ML05	8.658	0.123	5.91		73	25	0	25	98	187
KL16	8.733	0.137	10.50	1	79		25	25	105	154
ML06	8.787	0.246	8.34		35	9	0	9	44	102
KL02	8.840	0.126	2.75		21	3	0	3	24	34
KL14	8.840	0.126	7.92	1	61	2	22	24	86	146
DK01	9.001	0.155	4.84		10		11	11	21	54
KL13	9.001	0.155	9.91		73	2	15	17	90	170
KL01	9.184	0.043	9.49		100	9	18	27	127	180
KL03	9.270	0.062	12.92	4	57	15	44	59	120	184
KL05	9.543	0.126	7.34		24	11	0	11	35	62
KL06	9.543	0.126	5.50		81	7	23	30	111	139
KL04	9.703	0.109	13.57		153	19	23	42	195	301
KL20	9.784	0.139	11.61		37	2	19	21	58	72
DH01	10.300	0.114	7.07		30	2	29	31	61	159
DH02	10.300	0.114	2.33		5	2	10	12	17	17
RK01	10.307	0.114	9.49	4	66	10	19	29	99	182
RK02	10.385	0.124	6.74	2	28	6	17	23	53	48
Total			196.24	12	1333	142	390	532	1877	3004
Proportion of Total				0.006	0.710			0.283
1C.
Reptiles
Survey Level	Age (Ma)	Turtle Tally	ID Turtle	Total Chelonia	Lizard	Snake	Crocodyloid	Reptile Indet.	Total Reptile
KL07	7.289	15	0	15					15
KL09	7.561	2	0	2					2
KL10	7.561	2	0	2					2
KL08	7.719	24	2	26		1	4	1	32
KL11	7.949	23	1	24			1		25
KL21	7.949	11	0	11			5		16
KL12	8.485	38	2	40			1		41
ML05	8.658	0	20	20			3	2	25
KL16	8.733	25	0	25					25
ML06	8.787	0	8	8			1		9
KL02	8.840	0	15	15					15
KL14	8.840	22	0	22			2		24
DK01	9.001	11	0	11					11
KL13	9.001	15	0	15			2		17
KL01	9.184	18	6	24			3		27
KL03	9.270	44	3	47					47
KL05	9.543	0	11	11					11
KL06	9.543	23	6	29			1		30
KL04	9.703	23	15	38			4		42
KL20	9.784	19	0	19			2		21
DH01	10.300	29	1	30	1				31
DH02	10.300	10	0	10			2		12
RK01	10.307	19	1	20			9	1	30
RK02	10.385	17	0	17			5		22
Total		390	91	481	1	1	45	4	532
Proportion of Total				0.904	0.002	0.002	0.085	0.008