- Alveosphaera locellata
- Alveosphaera sp
- Alyssum lenense
- Alyxia
- Alyxia sp
- Alyxiaepollenites granimarginalis
- Alyxiaepollenites lingfengensis
- Alyxiaepollenites papillatus
- Alyxiaepollenites sp
- Alyxiaepollenites tuberporatus
- Alyxiaepollenites tympaniformis
- Alyzia
- Amadeusphaeridium
- Amadeusphaeridium prodigiosum
- Amadeusphaeridium spatiosum
- Amaryllidaceae type 1 Kohl.,1993
- Amaryllidaceae type 2 Kohl.,1993
- Amaryllidaceae type 3 Kohl.,1993
- Amasraipollenites
- Amasraipollenites canaliferus
- Amaurolithus primus
- Amazonites
- Amazonites cruzi
- Ambagisporites
- Ambagisporites daedaleus
- Ambagisporites daedalus
- Ambigomellatus horridus
- Ambiguaspora
- Ambiguaspora parvula
- Ambiguaspora sp. Zang & Walt.,1992