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Muricingulisporis chenquensis
Taxonomy
Muricingulisporis chenquensis was named by Barrera (1992) [Especie actual afín: Pteris seniadnata Phil.]. It is considered to be a form taxon. Its type specimen is CIRGEO Palin. 943: 29/98, a non-seed repro (Pollen grain), and it is a 3D fossil preserving soft parts.
Synonymy list
| Year | Name and author |
|---|---|
| 1992 | Muricingulisporis chenquensis Barrera p. 346 figs. 1, 2 |
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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.
†Muricingulisporis chenquensis Barrera 1992
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| V. D. Barrera 1992 | Espora trilete, cingulada. Lesura recta con labios, llegando cerca de la base del cíngulo. Cara proximal con tres muros (uno por lado), dispuestos paralelamente al contorno de la espora, próximos al cíngulo. Facetas irregularmente perforadas, a veces ornamentadas con pequeñas verrugas. Superficie distal reticuloide, con un engrosamiento subecuatorial que la delimita. Esculturación formada por la fusión de muros irregulares y escasas verrugas, originando un retículo irregular con lúmenes de ancho cercano al de los muros. Cíngulo liso, de espesor constante en toda la espora o ligeramente más delgado en las áreas radiales. |
Measurements
| part | N | mean | |||||
|---|---|---|---|---|---|---|---|
| Cingulum diameter | 1 | 0.005 | |||||
| Ecuatorial diameter | 1 | 0.040 |
No ecological data are available
Age range: base of the Late/Upper Oligocene to the top of the Middle Miocene or 28.40000 to 11.60800 Ma
Collections (6 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Oligocene | Argentina (Santa Cruz) | Muricingulisporis chenquensis (151587) | |
| Late/Upper Oligocene - Early/Lower Miocene | Argentina (Santa Cruz) | Muricingulisporis chenquensis (142322 142323 142324) | |
| Late/Upper Oligocene - Miocene | Argentina | Muricingulisporis chenquensis (169468) | |
| Middle Miocene | Argentina (La Rioja) | Muricingulisporis chenquensis (153418) |