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Eriosema pliocenicum
Eriosema pliocenicum Anzót., Y. Horn in Anzót., Y. Horn, R. Herbst Ameghiniana, 44(3): 528. 30 Sep 2007
- Name
- Eriosema pliocenicum
- Rank
- Species
- Original spelling
- pliocenica
- Generic Name
- [Genus] Eriosema
- Authors (Name)
- Anzótegui L. M.
Horn Y.
- Authors (Pub.)
- Anzótegui L. M.
Horn Y.
Herbst R.
- Publication
- Paleoflora (Fabaceae y Anacardiaceae) de la Formación Andalhuala (Plioceno Inferior), provincia de Catamarca, Argentina [2007/9]
- Journal
- Ameghiniana
- Volume
- 44
- Issue
- 3
- Page number
- 528
- Year
- 2007
- Fossil Status
- leaves
- Stratigraphy
- Zanclean
- Strat. comment
- Andalhuala Formation: 5.22 ± 0.9 MY
- Location
- Pie del Médano, Catamarca, Argentina
- Paleoregion
- America (South)
Data for Holotypus
- Repository
- Universidad Nacional del Nordeste, Facultad de Ciencias Exactas y Naturales y Agrimensura, Chaco, Corrientes, Argentina
- Repository Number
- CTES-PB 12254 a, b
- Diagnosis
- Leaflets nanophyll, narrow oblong to lorate,
slightly asymmetrical; apex and base acute, margin entire;
petiolule with pulvinule. Trichome bases present. Brochidodromous
venation. Three to seven pairs of alternate to
subopposite secondary veins, angles of divergence narrowly
acute to moderate acute, variable between lower
and upper secondary veins, and also between both hemilaminas.
Usually one hemilamina with fewer veins than the
other and basal intercostal space bigger exceeding half of
the lámina, with composite intersecondary vein. Tertiary
ramified percurrent venation. Ultimate marginal venation
looped.
