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Cryptacanthia compacta

Rhynchonellata - Terebratulida - Notothyrididae

Taxonomy
Waldheimia compacta was named by White and St John (1867) [Waldheimia? compacta]. It is the type species of Cryptacanthia.

It was recombined as Cryptacanthia compacta by Williams et al. (2007).

Sister species lacking formal opinion data

Synonymy list
YearName and author
1867Waldheimia compacta White and St John p. 119
2007Cryptacanthia compacta Williams et al. p. 2027

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Spiralia
superphylumLophotrochozoa
Lophophorata
PanbrachiopodaCarlson and Cohen 2020
phylumBrachiopodaCuvier 1805
RankNameAuthor
subphylumRhynchonelliformeaWilliams et al. 1996
classRhynchonellataWilliams et al. 1996
orderTerebratulida
suborderTerebratulidina
superfamilyCryptonelloideaThomson 1926
familyNotothyrididaeLicharew 1960
subfamilyCryptacanthiinaeStehli 1965
genusCryptacanthiaWhite and St John 1867
speciescompacta(White and St John 1867)

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.

Cryptacanthia compacta White and St John 1867
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Diagnosis
ReferenceDiagnosis
A. Williams et al. 2007Small, biconvex to concavoconvex, unisulcate; median septum usually absent or present apically, hinge plate concave to nearly flat, perforate; loop with hoodlike ascending lamellae and transverse band, descending lamellae becoming independent very late, anterior extremities of loop spinose.
Measurements
partNmean
shell height15.00

Composition: low Mg calcitep
Environment: marineuc
Locomotion: stationaryo
Attached: yesp
Life habit: low-level epifaunalo
Diet: suspension feedero
Vision: blindc
Created: 2004-02-28 14:14:12
Modified: 2018-11-10 17:47:38
Source: o = order, c = class, p = phylum, uc = unranked clade
References: Aberhan et al. 2004, Nesnidal et al. 2013

Age range: base of the Gzhelian to the top of the Asselian or 303.70000 to 293.52000 Ma

Collections (2 total)


Time interval Ma Country or state Original ID and collection number
Gzhelian303.7 - 298.9USA (Alaska) Cryptacanthia compacta (111913)
Asselian298.9 - 293.52Slovenia Cryptacanthia compacta (129658)