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Retitrescolpites magnus
Taxonomy
Retitrescolpites magnus was named by Jaramillo and Dilcher (2001) [n. comb.]. It is not extant. It is considered to be a form taxon. Its type specimen is UFP 38, 19.4 x 88.8, a microspore (pollen grain). Its type locality is Pinalerita UFP 34, Llanos foothills, COlombia, which is in an Eocene fluvial-deltaic siliciclastic in the Areniscas de el Limbo Formation of Colombia.
Synonyms
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Synonymy list
Year | Name and author |
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1967 | Retitricolpites magnus González-Guzmán p. 34 figs. Plate V Figs. 2-2c |
2001 | Retitrescolpites magnus Jaramillo and Dilcher p. 154 figs. Plate 17, Figs. 15-16 |
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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.
†Retitrescolpites magnus Jaramillo and Dilcher 2001
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Invalid names: Retitricolpites magnus González-Guzmán 1967 [replaced]
Diagnosis
Reference | Diagnosis | |
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A. E. González-Guzmán 1967 (Retitricolpites magnus) | Pollen grain tricolpate, prolate; furrow C α 1, C β 2, C γ 1; sculpture type reticulate with 'heterobrochate' reticulation; muri simplibaculate. Diameter of lumina 3-6 μ. Wall semitectate. Thickness of exine about 4.5 μ; ectexine thicker than endexine. Equatorial constriction. Polar area rather small. | |
C. A. Jaramillo and D. L. Dilcher 2001 | Retitricolpate, mid-sized (38-55 µm), colpi simple, long, lumina 3-4 µm wide, uniform, dense, muri thin, simplicolumellate. |
Measurements
No measurements are available
No ecological data are available
Age range: base of the Lutetian to the top of the Middle Eocene or 47.80000 to 37.71000 Ma
Collections (13 total)
Time interval | Ma | Country or state | Original ID and collection number |
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Lutetian | Venezuela | Retitricolpites magnus (212369) | |
Middle Eocene | Colombia (Norte de Santander) | Retitricolpites magnus (136918) | |
Middle Eocene | Colombia | Retitrescolpites magnus (type locality: 28775 28861 28862 28863 28864 28865 28866 29073 29074 29076) | |
Priabonian - Rupelian | Peru (Loreto) | Retitrescolpites magnus (144474) |