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Retilamina
Taxonomy
Retilamina was named by Debrenne and James (1981) [Sepkoski's age data: Cm Boto-l Cm Tojo-l].
It was assigned to Irregulares by Debrenne et al. (1989); to Archaeocyathida by Sepkoski (2002); and to Dictyocyathidae by Debrenne et al. (2015).
It was assigned to Irregulares by Debrenne et al. (1989); to Archaeocyathida by Sepkoski (2002); and to Dictyocyathidae by Debrenne et al. (2015).
Synonymy list
| Year | Name and author |
|---|---|
| 1981 | Retilamina Debrenne and James |
| 1989 | Retilamina Debrenne et al. p. 168 |
| 2002 | Retillamina Sepkoski |
| 2015 | Retilamina Debrenne et al. p. 1046 |
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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.
G. †Retilamina Debrenne and James 1981
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| F. Debrenne et al. 2015 | Encrusting, domelike cup; upper wall (interpreted as outer) with pores regularly arranged but not at each intertaenia; pores commonly produced as chimneys; lower (possibly inner) wall rudimentary; dictyonal or more probably pseudotaenial network. [Atypical cup shape does not provide certainty as to which wall is outer and which inner, and nature of inter- vallar elements and accepted inner wall remain doubtful.] |
Measurements
No measurements are available
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| Source: p = phylum | |||||
| References: Kiessling 2004, Bambach et al. 2007 | |||||
Collections (5 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Botomian | USA (Nevada) | R. sp. (81038) | |
| Botomian | Mexico | R. sp. (62865) | |
| Dyeran | USA (Nevada) | R. debrennei (7787) | |
| Dyeran | Canada (Newfoundland and Labrador) | R. sp. (9894 9900) |