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Azollaceae

Polypodiopsida - Salviniales - Azollaceae

Taxonomy
Azollaceae was named by Wettstein (1903).

It was assigned to Hydropteridales by Archangelsky et al. (1999); to Filicopsida by McIver and Basinger (1993) and Mabberley (2000); and to Salviniales by Kiessling (2004).

Synonymy list
YearName and author
1903Azollaceae Wettstein
1993Azollaceae McIver and Basinger
1999Azollaceae Archangelsky et al. p. 1201
2000Azollaceae Mabberley
2004Azollaceae Kiessling

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RankNameAuthor
kingdomPlantae
phylumPteridophyta
classPolypodiopsida
subclassPolypodiidae()
RankNameAuthor
orderSalvinialesLink 1833
familyAzollaceaeWettstein 1903
familyAzollaceaeWettstein 1903

If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.

Fm. †Azollaceae Wettstein 1903
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G. †Azollopsis Hall 1968
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†Azollopsis intermedia Sweet and Hills 1974
†Azollopsis tormentosa Hall 1968
G. †Paleoazolla Archangelsky et al. 1999
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†Paleoazolla patagonica Archangelsky et al. 1999
Diagnosis
No diagnoses are available
Measurements
No measurements are available
No ecological data are available

Age range: base of the Late/Upper Campanian to the top of the Wasatchian or 83.50000 to 50.30000 Ma

Collections (41 total)


Time interval Ma Country or state Original ID and collection number
Late/Upper Cretaceous - Early/Lower Paleocene100.5 - 61.7Argentina (Chubut) Paleoazolla patagonica (195706 195707)
Campanian83.6 - 72.1Canada (Alberta) Azollopsis coccoides (32997 34161 34262 34270 34271 34274) Azollopsis intermedia (34157 34158 34160 34162) Azollopsis pusilla (34155 34156)
Middle Campanian83.5 - 70.6Canada (Alberta) Azollopsis intermedia (34154 34275 34288 34289 34290) Azollopsis pusilla (34045) Azollopsis pusilla, Azollopsis intermedia (34044 34046 34047 34283)
Middle Campanian - Late/Upper Campanian83.5 - 70.6USA (Montana) Azollopsis coccoides (32404)
Late/Upper Campanian - Early/Lower Maastrichtian83.5 - 66.0Argentina (Mendoza) Azollopsis polyancyra (168549)
Maastrichtian72.1 - 66.0USA (Montana) Azollopsis tomentosa (32405)
Maastrichtian72.1 - 66.0Canada (Nunavut) Azollopsis sp. (32600)
Maastrichtian72.1 - 66.0Argentina (Chubut) Azollopsis tormentosa (151452) Paleoazolla patagonica (31653)
Maastrichtian72.1 - 66.0Argentina (Santa Cruz) Azollopsis sp. (234760)
Maastrichtian - Paleocene72.1 - 56.0Canada (Alberta) Azollopsis tomentosa (34165 34292)
Early/Lower Maastrichtian70.6 - 66.0Canada (Alberta) Azollopsis tomentosa (34163 34164 34166)
Late/Upper Maastrichtian - Early/Lower Paleocene70.6 - 61.7Canada (Alberta) Azollopsis spinata (34291 34293 34295)
Danian66.0 - 61.6Argentina (Chubut) Azollopsis tomentosa, Azollopsis tormentosa, Azollopsis intermedia (152264)
Wasatchian55.8 - 50.3USA (North Dakota) Azollopsis tomentosa (34108)