| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Polygonocrinus
Taxonomy
Polygonocrinus was named by Strimple (1961) [Sepkoski's age data: C Mosc-u C Step-l]. It is not extant.
It was assigned to Pisocrinidae by Ubaghs et al. (1978); and to Cladida by Sepkoski (2002).
It was assigned to Pisocrinidae by Ubaghs et al. (1978); and to Cladida by Sepkoski (2002).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1961 | Polygonocrinus Strimple |
| 1978 | Polygonocrinus Ubaghs et al. p. T731 |
| 2002 | Polygonocrinus Sepkoski |
Is something missing? Join the Paleobiology Database and enter the data
|
|
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.
G. †Polygonocrinus Strimple 1961
show all | hide all
†Polygonocrinus spiniferus Strimple and Moore 1971
Diagnosis
No diagnoses are available
Measurements
No measurements are available
|
|
||||
|
|
||||
|
|
||||
|
|
||||
|
|
||||
|
|
||||
| Source: subc = subclass, c = class, p = phylum | |||||
| References: Aberhan 1992, Kiessling 2004, 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) | P. spiniferus (51191) |