共 17 条
[1]
ARNOLD C. A., 1939, CONTR MUS PALEONT UNIV MICHIGAN, V5, P271
[2]
ARNOLD CA, 1941, CONTRIB MUS PALEONTO, V6, P53
[3]
EAMES A. J., 1936, MORPHOLOGY VASCULAR
[4]
GOLDRING W, 1935, NEW YORK STATE MUS B, V303
[5]
GOTHAN W., 1932, ARB INST PALAOBOT U PETROGR BRENN STEINE, V2, P103
[6]
GOTHAN W, 1936, JB PREUSS GEOL LANDE, V56, P208
[7]
Gothan W., 1937, JB PREUSSISCHEN GEOL, V57, P487
[8]
HALLE TG, 1936, PALAEONT SIN A, V1, P5
[9]
JONGMANS W, 1935, COMPT REND C ETUD ST, V1, P423
[10]
KRAUSEL R, 1933, PALAEONTOGR ABT B, V78, P1