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Streptelasma tennysoni
Taxonomy
Streptelasma tennysoni was named by Pestana (1960). Its type specimen is UCMP 37699 and is a 3D body fossil. Its type locality is UCMP loc. B6095, Mazourka Canyon, which is in a Trentonian marine limestone/quartzite in the Johnson Spring Formation of California.
Sister species lacking formal opinion data
S. affine, S. affinis, S. anticostiensis, S. elongatum, S. expansum, S. foerstei, S. fragile, S. goniophylloides, S. huronensis, S. integriseptatum, S. latum, S. latusculum, S. linnarsoni, S. nachitaiense, S. obliquum, S. oppletum, S. parisiticum, S. poulseni, S. produndum, S. rutkae, S. scoleciforme, S. shagami, S. sibiricum, S. subregulare, S. subvesiculare, S. trilobatum, S. vagans
Synonymy list
| Year | Name and author |
|---|---|
| 1960 | Streptelasma tennysoni Pestana p. 867 figs. Pl. 109, figs. 2 & 8 |
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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.
†Streptelasma tennysoni Pestana 1960
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order, c = class | |||||
| Reference: Kiessling 2004 | |||||
Age range: base of the Middle Ordovician to the top of the Trentonian or 471.30000 to 449.60000 Ma
Collections (6 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Middle Ordovician | USA (California) | Streptelasma tennysoni (196189) | |
| Trentonian | USA (California) | Streptelasma tennysoni (219335 219338 type locality: 219342 219344 219389) |