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Retitricolporites chubutensis
Taxonomy
Retitricolporites chubutensis was named by Archangelsky (1973). It is considered to be a form taxon. Its type specimen is Holotype: p.m. 1006; coord. 55/94.2. Stored at Museo de La Plata, Paleobotanical division., a microspore (Pollen grain), and it is a compression preserving soft parts. Its type locality is Puerto Visser, which is in a Danian terrestrial horizon in the Salamanca Formation of Argentina.
Synonymy list
| Year | Name and author |
|---|---|
| 1973 | Retitricolporites chubutensis Archangelsky |
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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.
†Retitricolporites chubutensis Archangelsky 1973
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| Archangelsky 1973 | Grano subprolado; colpos llegando cerca de los polos, engrosados en la región ecuatorial donde delimitan poros lalongados. Exina semitectada, perreticulada, compuesta por una capa basal y una capa externa, a veces más gruesa en el ecuador; columelas de base circular que distalmente se ensanchan y fusionan formando un retículo; tectum a veces presente. Retículo de mallas poligonales, más desarrolladas en el ecuador, en los mesocolpios, disminuyendo muy gradualmente hacia los colpos y los polos. |