Table 3-6.  Other constitutents in the 1998 central San Francisco Bay samples. 																						
 Sample Number	Constituents																					
	 Bivalve mollusk	 Bryozoa	 Crab claw	 Diatom	 Echinoid spine	 Fish bone	 Fish dermal plate	 Fish tooth	 Gastropod	 Gastropod operculum	 Ostracod	 Paint bead	 Planktic foraminifera	 Radiolarian	 Recrystallized foraminifera	 Seed	 Shell fragments	 Spore	 Thecamoebian	 Volcanic glass	 Welding slag	 Worm tube
1																						
2		X	X	X	X		X		X		X				X	X	X		X	X		
3	X	X		X	X	X	X	X			X		X			X			X	X	X	
4	X										X											
5		X		X							X								X	X		
6									X		X											
7																						
8	X								X		X			?			X					
10a	X	X			X				X							X				X		
11	X	X		X	X		X		X		X			X			X		X	X		
12					X						X				X		X			X		
13	X	X		X	X	X	X		X		X	X	X	X		X	X		X	X	X	
14		X									X											
15				X			X				X						X		X			
16				X			X										X					
17a		X									X					X	X	X				
18	X	X		X	X	X	X		X		X			X		X	X		X	X	X	
19	X				X						X						X			X		
20	X	X		X	X	X	X				X						X			X		
21		X			X						X									X		
22	X	X			X	X	X		X		X						X			X	X	
23	X	X	X		X	X	X				X			?			X			X		
24	X	X		X	X		X				X						X			X		
25		X									X											
26	X	X			X		X													X		
27	X	X			X	X	X		X				X							X		
28			X	X	X	X					X			X		X			X	X		
29	X			X	X						X						X			X		
30	X	X			X		X				X			?	X		X	X				
31		X		X	X	X	X			X	X	X				X	X		X	X	X	
32	X			X			X		X		X											
33				X										?		X		X				
34				X	X		X				X					X			X	X		
35				X												X						
36	X			X							X	X				X						
37							X							X				X	X			
38				X												X		X	X			X
39																X	X	X	X			
40					X						X										X	
41				X							X							X				
42														X		X						
43																			X			
44				X			X				X					X			X	X		
45	X	X			X															X		
46		X		X			?		X													
47		X		X	X		X		X		X				X	X				X		
48				X								X				X						
49				X				X				X		?		X						
50				X								X		X		X						
51				X												X		X	X	X		
52	X						X				X				X							
53	X	X					X				X		X					X	X			
54															X							
55					X		X										X					
56		X		X	X		X				X			X			X		X	X