| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Worsdellia
Taxonomy
Worsdellia was named by Artabe et al. (2004). Its type is Worsdellia bonettiae.
It was assigned to Zamiaceae by Artabe et al. (2004).
It was assigned to Zamiaceae by Artabe et al. (2004).
Species
W. bonettiae (type species)
Synonymy list
| Year | Name and author |
|---|---|
| 2004 | Worsdellia Artabe et al. |
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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.
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| A. E. Artabe et al. 2004 | Stem arborescent, covered by alternating cycles of cataphylls and persis-tent rhomboidal foliar bases, polyxylic. Manoxylic vascular cylinder with two concentric ringsof collateral vascular bundles and centripetal vascular bundles with respect to the inner ring.Foliar traces run irregularly, and as they pass through wide rays to the outer cortex they curve,producing a girdling configuration. Medullary bundles and mucilage canals occur in the pith. |
Measurements
No measurements are available
No ecological data are available
Age range: Maastrichtian or 72.20000 to 66.00000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Maastrichtian | Argentina (Río Negro) | W. bonettiae (96704) |