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Exaesiodiscidae
Discussion
Disarticulated columnals, according to Ubaghs, et al., 1978: T931
Taxonomy
Exaesiodiscidae was named by Moore and Jeffords (1968). It is considered to be a form taxon.
It was assigned to Crinoidea by Moore and Jeffords (1968).
It was assigned to Crinoidea by Moore and Jeffords (1968).
Subtaxa
Synonymy list
| Year | Name and author |
|---|---|
| 1968 | Exaesiodiscidae Moore and Jeffords |
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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.
Fm. †Exaesiodiscidae Moore and Jeffords 1968
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G. †Cyclostelechus Moore and Jeffords 1968
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: c = class, p = phylum | |||||
| References: Aberhan 1992, Kiessling 2004 | |||||
Collections (7 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Ludlow - Pridoli | Russian Federation | Exaesiodiscus sp. (24781) | |
| Early/Lower Frasnian | Russian Federation (Orenburgskaya Oblast) | Exaesiodiscus minutus (83918) | |
| Middle Frasnian - Late/Upper Frasnian | Poland (Świętokrzyskie) | Exaesiodiscus compositus (123052) | |
| Famennian | Poland (Lesser Poland) | Cyclostelechus sp. (124356) | |
| Famennian | Poland (Świętokrzyskie) | Cyclostelechus sp. (124232 124234 124235) |