APPENDIX 2.

Botanical affinity of Angiosperm pollen grains described from the Cuayuca Formation. Total number of genera (No. G) and species (spp.) reported currently in the Balsas River Basin region taken from Fernández-Nava et al. (1998).

 

BOTANICAL AFFINITY

Balsas River Basin region

No. G (spp.)

MONOCOTYLEDONEAE

 

 

Arecipites

Arecaceae

2(3)

Liliacidites

 

Liliaceae,

Amaryllidaceae,

Bromeliaceae

23(62)

11(49)

7 (59)

Monocolpopollenties aff. texensis

Monocotyledoneae

 

Monoporopollenites

Gramineae.

84 (253)

DICOTYLEDONEAE

 

 

Armeria

Armeria (Plumbaginaceae)

 

Bombacacidites

Bombacaceae

Sterculiaceae

Tiliaceae

3(5)

8 (21)

5 (19)

Casuarinidites

Casuarina (Casuarinaceae)

(1)

Chenopodipollis

Amaranthaceae

Chenopodiaceae

6 (20)

1 (4)

Corsinipollenites

Onagraceae.

8 (29)

Clavainaperturites

Croton (Euphorbiaceae)

(11)

Eucommia pollen type

Eucommia (Eucommiaceae)

 

Fabaceae pollen type

Fabaceae

90 (486)

Favitricolporites sp.

Aeschynomene (Fabaceae)

(13)

Glycydendron pollen type

Glycydendron (Euphorbiaceae)

 

Intratriporopollenites

Mortoniodendron (Graham, 1979) or Fremontodendron (Sterculiaceae)

8(21)

Landolphia pollen type

Landolphia (Apocynaceae).

 

Fabaceae pollen type

Fabaceae

90 (486)

Linum pollen type

Linum (Linaceae)

(2)

Lymingtonia

Nyctaginaceae and/or

Portulacaceae

9 (24)

4 (4)

Magnaperiporites

Nyctaginaceae

9 (24)

Malpighiaceoidites

Malpighiaceae

13 (33)

Margocolporites

Caesalpinia (Fabaceae).

(9)

Mutisiapollis

Mutisia (Compositae).

 

Perisyncolporites

Malpighiaceae

13 (33)

Polyadopollenites

Acacia (Fabaceae).

(27)

Polygalacidites

Polygalaceae.

3 (12)

Ranunculacidites cf. communis

Euphorbiaceae

18 (103)

Rhamnaceaepollenites

Rhamnaceae

6 (19)

Rhoipites

Araliaceae

4(8)

Brosipollis

Bursera (Burseraceae).

(43)

Sabicea pollen type

Probably Sabicea

(Rubiaceae)

23(66)

Striatricolporites

Anacardiaceae

10(20)

Tubulifloridites

Compositae

136 (573)

Ulmipollenites

Ulmaceae

3 (14)