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Restrepophyllum

Cycadopsida - Cycadales - Zamiaceae

Taxonomy
Restrepophyllum was named by Passalia et al. (2010). It is considered to be a form taxon. Its type is Restrepophyllum chiguoides.

It was assigned to Zamiaceae by Passalia et al. (2010).

Species
R. chiguoides (type species)

Synonymy list
YearName and author
2010Restrepophyllum Passalia et al.

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RankNameAuthor
kingdomPlantae
subkingdomEmbryophyta
phylumCycadophytaBessey 1907
classCycadopsidaBrongniart 1843
RankNameAuthor
orderCycadalesDumortier 1829
familyZamiaceaeHoraninow 1834
genusRestrepophyllum

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.

G. †Restrepophyllum Passalia et al. 2010
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Restrepophyllum chiguoides Passalia et al. 2010
Diagnosis
ReferenceDiagnosis
M. G. Passalia et al. 2010Leaf (leaflet?) papyraceous, narrow, lanceolate with serrate margins and simple, regularly spaced teeth. Open venation with a prominent midvein and decurrent laterals at acute angles, reaching margins, simple or dichotomous. Leaf hypostomatic. Abaxial cuticle thin with isodiametric to elongate epidermal cells between veins and strongly elongate cells on veins. Stomata present between veins, irregularly distributed and indistinctly oriented, mostly monocyclic to imperfectly dicyclic (haplocheilic). Suprastomatal aperture raised over epidermal surface. Guard cells sunken in epistomatal chamber. Adaxial cuticle thicker with elongate epidermal cells.
Measurements
No measurements are available
No ecological data are available

Age range: Aptian or 121.40000 to 113.20000 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Aptian121.4 - 113.2Argentina (Santa Cruz) R. chiguoides (150879)