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Brevitricolpites variabilis
Taxonomy
Brevitricolpites variabilis was named by González-Guzmán (1967). It is considered to be a form taxon. Its type specimen is Slide F-III-20-564 (Catatumbo). Loc: X (micr. P0-58), a seed repro (Pollen grain), and it is a 3D fossil preserving soft parts. It is the type species of Brevitricolpites.
Synonymy list
| Year | Name and author |
|---|---|
| 1967 | Brevitricolpites variabilis González-Guzmán p. 35 figs. Plate XII Figs. 6-6b |
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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.
†Brevitricolpites variabilis González-Guzmán 1967
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| A. E. González-Guzmán 1967 | Pollen grains tricolpate to tricolporate, spheroidal; furrow C α 2, C β 1, C γ 2; sculpture of holotype is clavate to gemmate with the structural elements up to 0.05 μ high and 0.75 μ long. Thickness of the exine 1.5 μ (incl. sculpture elements); intectate? Furrows not clearly defined. Some grains with scabrateverrucate sculpture. Sometimes grains have 'colpi transversales', sometimes 'costae colpi'. |