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| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Koelreuteria dilcheri
Taxonomy
Koelreuteria dilcheri was named by Wang et al. (2013) [Synonym — Koelreuteria mixta (Lesq.) R. W. Br., Brown
(1946) , pro parte, 351, fi g. 1 (non fi g. 2) ( Figs. 17, 18 herein).]. Its type specimen is USNM P42363, a seed/fruit, and it is a compression fossil. Its type locality is UCMP loc. P3325, Chalk Bluffs, which is in an Eocene floodplain claystone in California.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 2013 | Koelreuteria dilcheri Wang et al. |
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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.
†Koelreuteria dilcheri Wang et al. 2013
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| Q. Wang et al. 2013 | Fossils are preserved as individual capsular valve impressions. Capsular valves are entire-margined, elliptic ( Figs. 17, 18 ), oblong or oblong-elliptic ( Figs. 19–21 ), 3.5–5.8 cm long and 2.8–3.6 cm wide. Both apex and base are rounded. A longitudinal, middle carpellary suture is prominent and thicker
in the lower half-part than the upper one ( Fig. 19 ), implying an incomplete septum in the valves. Seeds are not preserved. On both sides of the carpellary suture, lateral veins diverge at 30 ° – 110 ° and arrive at the margin. Between lateral veins, thinner veins anastomose, forming a polygonal reticulum with areoles that are mostly irregular and transversely elongated in outline ( Figs. 18, 20–21 ). The texture of valves is membranous. |
Measurements
No measurements are available
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| Source: p = phylum | |||||
| Reference: Kiessling 2009 | |||||
Age range: base of the Ypresian to the top of the Middle Eocene or 56.00000 to 37.71000 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Ypresian | USA (Washington) | Koelreuteria dilcheri (147822) | |
| Middle Eocene | USA (California) | Koelreuteria dilcheri (type locality: 23996) |