Organic Preservation of Biopolymers in Fossil Leaves - Biopolymers: A Molecular Paleontology Approach - page 59

Quercus hispanica specimen 1

a P r1

P

B 1

B2

L1

L2

B4

29

Pr2

B 3

L3

L4

C 16 FA

L5 2 0

b

Pr1

C 16 FA

B1 L1

P

L2 L3

P1

B 2

L4

B3 C 18 FA

Pr2

B4

L 5 29

20

c IIS

Retention time

Fig. 3.9 Partial total ion current chromatogram of fossil Quercushispanica sp1 after extraction
( a ) and after saponifi cation ( b ). ( c ) shows the lack of any compounds in the saponifi ed extract.
A C 34 n -alkane was used as the internal standard. Symbols same as those in Fig. 3.8

phenols and acids (Challinor 1989 , 1991a , b ). It has been used for the structural
investigation of biopolymers (Anderson and Winans 1991 ; de Leeuw and Baas; 1993 ;
Hatcher et al. 1995 ; Hatcher and Clifford 1994 ; McKinney et al. 1995 ; Hatcher and