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Polygonocrinus spiniferus
Taxonomy
Polygonocrinus spiniferus was named by Strimple and Moore (1971). Its type specimen is IGS42P109. Its type locality is LaSalle Limestone Member, Bond Fm., near Pontiac, Livingstone County, IL, which is in a Missourian marine shale/limestone in the Bond Formation of Illinois.
Synonymy list
| Year | Name and author |
|---|---|
| 1971 | Polygonocrinus spiniferus Strimple and Moore p. 19 |
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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.
†Polygonocrinus spiniferus Strimple and Moore 1971
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: subc = subclass, c = class, p = phylum | |||||
| References: Kiessling 2004, Aberhan 1992, Aberhan et al. 2004 | |||||
Age range: Missourian or 306.00000 to 303.70000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Missourian | USA (Illinois) | Polygonocrinus spiniferus (type locality: 51191) |