| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Taxonomy
Symphysurina bulbosa was named by Lochman (1964). It is not extant. Its type specimen is USNM 140813, a pygidium. Its type locality is 9,888'. Shell Oil Co. #43-22A Unit, Pine field, which is in a Gasconadian marine shale in the Deadwood Formation of Montana.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1964 | Symphysurina bulbosa Lochman pp. 470 - 471 figs. P1. 66, figs. 4-8 |
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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.
†Symphysurina bulbosa Lochman 1964
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: g = genus, f = family, o = order, c = class | |||||
| References: Hendy 2009, Hendy et al. 2009, Aberhan et al. 2004 | |||||
Age range: base of the Gasconadian to the top of the Skullrockian or 485.40000 to 482.30000 Ma
Collections (5 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Skullrockian | USA (Texas) | Symphysurina bulbosa (219672 219673 219674) | |
| Gasconadian | USA (Montana) | Symphysurina bulbosa (type locality: 219668) | |
| Tremadocian | USA (Utah) | Symphysurina bulbosa (219669) |