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Ischyosporites problematicus
Taxonomy
Ischyosporites problematicus was named by Jaramillo and Dilcher (2001) [Type locality: Piñalerita Creek near Sabanalarga. PaleoDB number: 28772.
Paratype: UFP 15, 13.9 x 85.6.
Dimensions in equatorial view.]. It is not extant. It is considered to be a form taxon. Its type specimen is UFP 27, 12 x 114, a microspore.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 2001 | Ischyosporites problematicus Jaramillo and Dilcher |
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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.
†Ischyosporites problematicus Jaramillo and Dilcher 2001
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| C. A. Jaramillo and D. L. Dilcher 2001 | Trilete, mid-sized (30-40 µm), intexine 2 µm thick, fossulate, fossulae large, with undulating margins, bofurcating, and being connected with each other. |
Measurements
| part | N | mean | s.d. | ||||
|---|---|---|---|---|---|---|---|
| microspore diameter | 6 | 0.038 | 0.004 |
No ecological data are available
Age range: base of the Late/Upper Paleocene to the top of the Early/Lower Eocene or 59.24000 to 48.07000 Ma
Collections (4 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Paleocene | Colombia | Ischyosporites problematicus (28563 28564 28565) | |
| Early/Lower Eocene | Colombia | Ischyosporites problematicus (28772) |