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Christiania aseptata

Strophomenata - Strophomenida - Christianiidae

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
C. oblonga

Synonymy list
YearName and author
2012Christiania aseptata Rasmussen et al. pp. 16 - 17 figs. Plate 1, figure 24; Plate 2, figures 1–5

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
—Lophophorata
—PanbrachiopodaCarlson and Cohen 2020
RankNameAuthor
phylumBrachiopodaCuvier 1805
subphylumRhynchonelliformeaWilliams et al. 1996
classStrophomenataWilliams et al 1996
orderStrophomenidaOpik 1934
superfamilyPlectambonitoideaJones 1928
familyChristianiidaeWilliams 1953
genusChristianiaHall and Clarke 1892
speciesaseptata

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
ReferenceDiagnosis
C. M. O. Rasmussen et al. 2012Shell 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.