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Lyonothamnus mohavensis
Taxonomy
Lyonothamnus mohavensis was named by Axelrod (1939). Its type specimen is UCMP 1457, 1458, 1459 and is a 3D body fossil. Its type locality is Cache Peak (P-3643), which is in a Hemingfordian/Barstovian terrestrial horizon in the Bopesta Formation of California.
Synonymy list
Year | Name and author |
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1939 | Lyonothamnus mohavensis Axelrod p. 107 figs. Plate 8, figures 6, 9 |
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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.
†Lyonothamnus mohavensis Axelrod 1939
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Diagnosis
Reference | Diagnosis | |
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D. I. Axelrod 1939 | Leaf lanceolate, total dimensions unknown; lamina regularly di vided to the midrib into lobes of regular size, either alternate or opposite; upper and lower sides of the lobes commonly parallel near the base, the base of the lobe flattened to the midrib, i.e., truncate; each lobe passing outward into an upturned blunt or acute point, i.e., falcate-pointed; lobes 4 mm. long and 2 mm. wide, each containing 4 to 6 lateral veins, parallel, the uppermost one reaching into the apex, the others running to the upcurved abaxial side of the lobe; margins of the lobe entire; texture coriaceous. |
Measurements
No measurements are available
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Source: p = phylum | |||||
Reference: Kiessling 2009 |
Age range: base of the Hemingfordian to the top of the Barstovian or 20.43000 to 13.60000 Ma
Collections: one only
Time interval | Ma | Country or state | Original ID and collection number |
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Hemingfordian - Barstovian | USA (California) | Lyonothamnus mohavensis (type locality: 19206) |