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Ulminium artabeae
Taxonomy
Ulminium artabeae was named by Brea (1998). It is considered to be a form taxon. Its type specimen is LPPB 12411, pm LPPB 1214 a pm LPPB 1216, a wood, and it is a 3D fossil preserving soft parts.
Synonymy list
| Year | Name and author |
|---|---|
| 1998 | Ulminium artabeae Brea |
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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.
†Ulminium artabeae Brea 1998
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| M. Brea 1998 | Anillos de crecimiento, distinguibles, demarcados por 1-2 hileras radiales de fibras, de 3-5 µm de ancho. Vasos: porosidad difusa, poros solitarios y múltiples radiales de 2-3 elementos, raramente múltiples radiales de 4 elementos y en racimo; con un diámetro tangencial de 34-270 µm, y una media de 134.8 µm; de 12-18 vasos por mm²; con un largo de 130-320 µm; placa de perforación simple; punteaduras intervasculares alternas, ocasionalmente opuestas; tilosis ausente. Radios: heterocelulares y heterogéneos; numerosos; de 4-7 por mm lineal; son biseriados, imperfectamente biseriados y imperfectamente triseriados; con una altura de 145-652.5 µm; y un ancho de 8-30 µm. Fibras: hexagonales; con un diámetro de 3-9 µm, y una media de 6 µm; con un grosor de pared de 4-6 µm. Parénquima axial: paratraqueal, vasicéntrico, escaso, raramente incompleto, ocasionalmente confluente. Idioblastos: células mucilaginosas y/o oleíferas asociadas con parénquima radial. |
Measurements
| part | N | mean | |||||
|---|---|---|---|---|---|---|---|
| Fibres diameter | 1 | 0.014 | |||||
| Vessels diameter | 1 | 0.135 |
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| Source: p = phylum | |||||
| Reference: Kiessling 2009 | |||||
Age range: Late/Upper Pleistocene or 0.12900 to 0.01170 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Pleistocene | Argentina (Entre Ríos) | Ulminium artabeae (138828) |