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Smithtonia lanceolata

Coniferales - Podocarpaceae

Taxonomy
Smithtonia lanceolata was named by Hill and Pole (1992) [Type locality. Anglesea, Victoria. Specimens examined. AM 4001-4011, 4018.]. It is considered to be a form taxon. Its type specimen is Holotype: 2355, is housed in the State Herbarium of South Australia., a leaf (Cuticle), and it is a compression fossil.

Synonyms
  • Prumnopitys lanceolata was named by Greenwood (1987) [Type material and locality. Holotype: 2355 (leafy shoot and cuticle preparation, Figs 26, 32 and 33). Paratypes: 2356, 2357, 2358 and 2359 (leafy shoots, Fig. 25). Clay lens 70 m below ground surface in the Demons Bluff Formation, 25 m above coal surface, south face of the new workings (1983) of the Alcoa Anglesea open-cut brown coal mine (Eastern View coal measures), Victoria, Australia.]. It is considered to be a form taxon. Its type specimen is Holotype: 2355, is housed in the State Herbarium of South Australia., a sterile axis (Cuticle), and it is a compression fossil. Its type locality is ALCOA Anglesea Site II coal mine, which is in an Eocene channel mudstone/sandstone in the Demon Bluff Formation of Australia.

    It was synonymized objectively with Smithtonia lanceolata by Hill and Pole (1992).
Synonymy list
YearName and author
1987Prumnopitys lanceolata Greenwood p. 124 figs. 25, 26, 32, 33
1992Smithtonia lanceolata Hill and Pole p. 355 figs. 22-30

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RankNameAuthor
kingdomPlantae
phylumSpermatophyta
phylumPinophyta
orderConiferales
RankNameAuthor
familyPodocarpaceaeEndlicher 1847
genusSmithtonia
specieslanceolata

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.

†Smithtonia lanceolata Hill and Pole 1992
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Invalid names: Prumnopitys lanceolata Greenwood 1987 [objective synonym]
Diagnosis
ReferenceDiagnosis
D. R. Greenwood 1987 (Prumnopitys lanceolata)Leaves bilateral, narrowly lanceolate, base slightly narrowed, attached spirally but twisted in a distichous manner. Leaves 0.7-1.2 cm long, 0.1 cm wide, unequally amphistomatic, lateral subsidiary cells much longer than broad, clearly defined, polar subsidiary cells typically shared.
R. S. Hill and M. S. Pole 1992Leaf length 7-24 mm, width about 1-1.6 mm, 1ength:width 5.5-15.5:1, leaf apex extended, acute. Polar subsidiary cells often shared between adjacent stomates. Cuticular flanges around lateral subsidiary cells extended and irregular.
Measurements
No measurements are available
No ecological data are available

Age range: Late/Upper Eocene or 37.71000 to 33.90000 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Late/Upper Eocene37.71 - 33.9Australia (Victoria) Prumnopitys lanceolata, Smithtonia lanceolata (166825)