Licari, R. 1960. Geology and amber deposits of the Simojovel area, 
Chiapas, Mexico. Unpubl. thesis, M.A., Dept. of Geol., Univ. of 
California, Berkeley. 
Lindeman, J.C. 1953. The vegetation of the coastal regions of Suri- 
nam. Utrecht. 1-135. In The Vegetation of Surinam, ed. I. A. 
de Hulster, V. Lanjou and F.W. Ostendorf 1 (1): 1-135. Van 
Edenfonds, Amsterdam. 
Miranda, F. 1963. Two plants from Chiapas amber. Jour. Paleontol. 
37: 611-614. 
and A.J. Sharp. 1950. Characteristics of vegetation in certain 
temperate regions of eastern Mexico, Ecol. 31: 313-333. 
and E. Hernandez-X. 1963. Los tipos de vegetacion de México 
y su clasificacién. Bol. Mex. Bot. Soc. 28: 29-179. 
Muller, J. 1959. Palynology of recent Orinoco delta and shelf sedi- 
ments. Reports of the Orinoco Shelf Exped. Micropaleo. 5 (1): 
1-32. 
. 1964. A palynological contribution to the history of mangrove 
vegetation in Borneo. Ancient Pacific Floras, Univ. of Hawaii 
Press: 33-42. 
Noriega, J.M. 1918. El gaupinole. Bol. Direc. Estud. Biél. II: 357- 
363. 
Record, S.J. and R.D. Hess. 1943. Timbers of the New World. Yale 
Univ. Press, New Haven. 
Salvoza, F.M. 1936. Rhizophora, Nat. Appl. Sci. Bull., University 
of the Philippines, Manila. 
Savory, H.J. 1953. A note on the ecology of Rhizophora in Nigeria. 
Kew. Bull. 8: 127-128. 
Schubert, Kurt. 1958. Sobre el ambar baltico y los pinos de El Sal- 
vador, Comunicaceénes, Instituto Tropical de Investigaciénes Cien- 
tifieas, Universidad de El] Salvador VII: 51-55. 
. 1931. Neue Untersuchungen tiber Bau und Leben der Bern- 
steinkiefern (Pinus succinifera (Conw.) emend.). Beihefte Geol. 
Jahrbuch, H. 45. Niedersachsische Landesamt fiir Bodenforschung. 
Hannover. 143 pp. 
Spackman, W., D.W. Scholl, and W.H. Taft. 1964. Field guidebook 
to environments of coal formation in southern Florida. G.S.A. 
Preconven. Field Trip, Nov. 16-18. 
U.S. Geological Survey (Paleontology and Stratigraphy Branch, Den- 
ver, Colo.) 1960. Preparation Procedures for fossil pollen and 
spores, Mimeo. 15 pp. 
Zagwijn, W.H. 1961. Vegetation, climate and radiocarbon datings 
in the Late Pleistocene of the Netherlands. Meded. Geologische 
Stichting 14: 15-45, 
[ 328 ] 
