La Colonia Macrofossil Taxon List

Below is the flora of the La Colonia Formation, as it is presently understood. The classification of the angiosperms follows Chase and Reveal (2009. Bot. J. Linn. Soc. 161: 122-127); and of ferns, Christenhusz et al. (2011. Phytotaxa 19: 7-54).

FERNS

Subclass: Polypodiidae

Order: Cyatheales

      Family: Dicksoniaceae
      Dicksonia sp., Cúneo, et al., fertile leaves
      Arecipites botrus, De Benedetti, et al, microspore "clumps"

Order: Hymenophyllales

      Family: Hymenophyllaceae
      Hymenophyllaceae sp., leaves (undescribed)

Order: Salviniales (aquatic ferns)

      Family: Marsileaceae
      Mirasolita irupensis, Hermsen et al., leaves
      Lugiomarsiglia aquatica, Hermsen et al., sporocarps
      Crybelosporites cf. pannuceus, (Brenner) Srivastava, Cerro Bosta, microspores
      Molaspora lobata, (Dijkstra) Hall, megaspores
      Regnellidium thomas-taylorii, Cúneo et al., leaves

      Family: Salviniaceae
      Azolla sp., undescribed shoots
      Azolla coloniensis, De Benedetti et al., megaspores, microspores
      Azolla coloniensis, Hermsen et al., sporophyte
      Paleoazolla patagonica , A. Archangelsky et al., megaspore complexes, microspore massulae
      Cyathidites minor, De Benedetti et al., microspore "cumps"

SPERMATOPHYTA

Subclass Magnoliidae (the angiosperms)

Superorder: Lilianae (monocots)

Clade: Commelinids

Order: Arecaceae

      Family: Arecaceae
      Araceae sp., leaves (undescribed)
      Arecipites minutiscabratus, De Benedetti, et al., microspore "clumps"
      Inaperturotetradites scabratu, De Benedetti, et al., microspore "clumps"

      Family: Araceae
      Aquaephyllum auriculatum, Gallego et al., leaves
      Pandaniidites sp., Gallego et al., pollen

Order: Liliales

      Family: Juncaceae?
      Liliacidites variegatus, De Benedetti, et al., microspore "clumps"

Order: Poales

      Family: Typhaceae
      Typhaceae sp., leaves (undescribed)
      Sparganiaceaepollenites annulatus, De Benedetti, et al., microspore "clumps"

Superorder: Nymphaeanae

Order: Nymphaeales

     Family: Nymphaeaceae (water lilies)
     Nympheaeceae sp., seeds (undescribed)

Clade: Eudicots

Superorder: Proteanae

Order: Proteales

      Family: Nelumbonaceae (lotuses)
      Nelumbo sp., fruit-receptacles & fruits
      Nelumbo puertae, Gandolfo & Cúneo, leaves

Superorder: Rosanae (the rosids)

Clade: Fabids/Eurosid I

Order: Oxalidales

      Family: Cunoniaceae
      Dryadopollis sp. 1, De Benedetti, et al., microspore "clumps"
      Dryadopollis sp. 2, De Benedetti, et al., microspore "clumps"
      Dryadopollis sp. 3, De Benedetti, et al., microspore "clumps"

Clade: Malvids/Eurosid II

Order: Malvales

      Family: Malvaceae
      Bombacacidites brevis, (Muller et al.) De Benedetti, et al., microspore "clumps"

Superorder: Asteranae (the asterids)

Order: Ericales

      Family: Ericaceae
      Ericipites verrucatus, De Benedetti, et al., microspore "clumps"

Dicots—affinities uncertain

      Morphotype 1, Gandolfo et al.
      Morphotype 2, Gandolfo et al.
      Morphotype 3, Gandolfo et al.
      Morphotype 4, Gandolfo et al.
      Morphotype 5, Gandolfo et al.
      Morphotype 6, Gandolfo et al.
      Ailanthipites diminutus, De Benedetti, et al., microspore "clumps"
      Nyssapollenites scabratus, De Benedetti, et al., microspore "clumps"
      Periporopollenites delicatus, De Benedetti, et al., microspore "clumps"
      Rhoipites sp., De Benedetti, et al., microspore "clumps"
      Rousea minuscula, Archangelsky and Zamaloa, microspore "clumps"
      Symplocoipollenites microechinatus, De Benedetti, et al., microspore "clumps"
      Tricolporites sp., De Benedetti, et al., microspore "clumps"
      Pollen Type 1, De Benedetti, et al., microspore "clumps"