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| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Christiania aseptata
Taxonomy
Christiania aseptata was named by Rasmussen et al. (2012). Its type specimen is MGUH 29461 and is a 3D body fossil. Its type locality is Locality A-1230 Blocks 4-6, which is in an Ashbyan deep subtidal ramp limestone/siltstone in the Telsitna Formation of Alaska.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 2012 | Christiania aseptata Rasmussen et al. pp. 16 - 17 figs. Plate 1, figure 24; Plate 2, figures 1–5 |
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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.
†Christiania aseptata Rasmussen et al. 2012
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| C. M. O. Rasmussen et al. 2012 | Shell medium sized, concavo-convex in profile, elongate to subquadrate in outline. Delthyrium open, partly covered by pseudodeltidium. Notothyrium open, wide. Chilidium absent. Valves are smooth but lamellose. Short ventral median septum. Dorsal median septum weak to absent. |
Measurements
No measurements are available
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| Source: g = genus, c = class, p = phylum, uc = unranked clade | |||||
| References: Nesnidal et al. 2013, Hendy et al. 2009, Aberhan et al. 2004 | |||||
Collections (3 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Ashbyan | USA (Alaska) | Christiania aseptata (type locality: 164853) | |
| Rawtheyan - Pusgillian | USA (Alaska) | Christiania aseptata (164855) | |
| Rawtheyan | USA (Alaska) | Christiania aseptata (164854) |