Basic info Taxonomic history Classification Included Taxa
Morphology Ecology and taphonomy External Literature Search Age range and collections

Stenothecoida

Stenothecoida

Taxonomy
Stenothecoida was named by Yochelson (1969).

It was assigned to Mollusca by Yochelson (1969) and Sepkoski (2002); and to Panbrachiopoda by Johnston and Streng (2021).

Subtaxa
Cambridiida, Cambridioida, Cambridioidea, Hubeinella, Xianfengoconcha
Sister taxa
Cambridiida, Cambridioida, Cambridioidea

Synonymy list
YearName and author
1969Stenothecoida Yochelson
2002Stenothecoidea Sepkoski p. 80
2021Stenothecoida Johnston and Streng pp. 730 - 731

Is something missing? Join the Paleobiology Database and enter the data

RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
RankNameAuthor
superphylumLophotrochozoa
—Lophophorata
—PanbrachiopodaCarlson and Cohen 2020
classStenothecoida
classStenothecoida

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.

Cl. †Stenothecoida Yochelson 1969
show all | hide all
Or. †Cambridioida Horný 1957
hide
Superfm. †Cambridiacea Horný 1957
+
Fm. †Cambridiidae Horný 1957
+
G. †Bagenovia Horný 1957
+
†Bagenovia kazakhstanica Koneva 1976
†Bagenovia procera Koneva 1976
†Bagenovia sajanica Horný 1957
G. †Cambridium Horný 1957
+
†Cambridium asiaticum Koneva 1979
†Cambridium clishevichi Koneva 1979
G. †Stenothecoides Resser 1938
+
†Stenothecoides dubius Koneva 1979
†Stenothecoides elevata Cobbold 1921
†Stenothecoides elongata Walcott 1884
†Stenothecoides knighti Yochelson 1969
†Stenothecoides medius Koneva 1979
†Stenothecoides minutus Missarzhevsky and Mambetov 1981
†Stenothecoides proximus Koneva 1979
†Stenothecoides rarus Koneva 1979
†Stenothecoides rugosa Walcott 1886
†Stenothecoides tamdensis Koneva 1979
G. †Hubeinella Zhang 1980 [mollusk]
hide
†Hubeinella formosa Zhang 1980
G. †Xianfengoconcha Zhang 1980
hide
†Xianfengoconcha minuta Zhang 1980
Invalid names: Cambridiida Knight and Yochelson 1958 [empty], Cambridioidea Horný 1957 [empty]
Diagnosis
ReferenceDiagnosis
P. A. Johnston and M. Streng 2021Shell organocalcitic, bivalved, slightly or moderately ventribiconvex. Valves moderately to strongly inequilateral; length typically exceeding width, rarely subequal. Commissure planar to gently sinusoidal in lateral view. Beaks orthogyrate to sinistrogyrate; growth hemiperipheral to mixoperipheral. Interior surface of valves with a serial set of furrows or elliptical to circular depressions on Fig. 3. Orientation, measurements, and ridge zones in Stenothecoides rasettii sp. nov. A. Ventral valve, exterior, showing orientation for measurements. B. Ventral valve, interior, showing peripheral and axial ridge zones, and approximated body cavity. Abbreviations: ax, auricular axis; az, axial ridge zone; bc, body cavity; L, valve length; ll, left lobe; lx, lobe axis; pz, peripheral ridge zone; rl, right lobe; vx, valve axis; W, valve width. both sides of the valve midline, and typically with a second finer set of transverse alternating furrows and ridges around the valve perimeter.
Measurements
No measurements are available
Composition: no hard partsuc
Environment: marineuc
Diet: suspension feederuc
Created: 2022-12-08 19:17:13
Modified: 2022-12-08 19:17:13
Source: uc = unranked clade
Reference: Nesnidal et al. 2013

Age range: base of the Tommotian to the top of the Undillan or 525.50000 to 500.50000 Ma

Collections (35 total)


Time interval Ma Country or state Original ID and collection number
Early/Lower Cambrian538.8 - 509.0China (Hubei) Xianfengoconcha elliptica, Hubeinella formosa (201164)
Meishucunian530.7 - 521.0China (Hubei) Stenothecoides yochelsoni (107634)
Tommotian - Atdabanian525.5 - 516.0Canada (Nova Scotia) Stenothecoides sp. (6897)
Tommotian - Atdabanian525.5 - 516.0Kazakhstan Stenothecoides triangulatus (10162)
Atdabanian521.0 - 516.0Kazakhstan Stenothecoides minutus (99303)
Atdabanian521.0 - 516.0Kyrgyzstan Stenothecoides minutus (99329)
Atdabanian521.0 - 516.0Russian Federation (Yakutia) Cambridium nikiforovae (233071)
Nangaoian521.0 - 514.0China (Xinjiang) Bagenovia sp., Stenothecoides sp., Bagenovia sajanica (49494)
Branchian517.1 - 509.0United Kingdom (England) Scenella elevata (154889)
Botomian516.0 - 512.9Russian Federation (Yakutia) Cambridium nikiforovae (174246 232979)
Botomian516.0 - 512.9Kazakhstan Stenothecoides minutus (99362)
Lenian516.0 - 510.2Kazakhstan Cambridium asiaticum (10163) Cambridium sp., Stenothecoides sp., Bagenovia kazakhstanica, Bagenovia procera (49495) Stenothecoides variabilis, Cambridium asiaticum, Stenothecoides dubius, Stenothecoides proximus, Stenothecoides rarus, Stenothecoides tamdensis, Stenothecoides medius, Cambridium clishevichin (10164)
Dyeran515.3 - 511.2USA (Nevada) Stenotheca elongata (203345) Stenothecoides sp. (7787)
Toyonian512.9 - 510.2Greenland Cambridium sp. (8092)
Solvan510.2 - 504.5Canada (British Columbia) Stenothecoides elongata (56703 56704 56718 56720 56721)
Solvan510.2 - 504.5Kazakhstan Stenothecoides obliquus (56537)
Middle Cambrian509.0 - 497.0Canada (British Columbia) Stenothecoides sp. (193550 193551) Stenothecoides spp. (188658)
Marjumian504.5 - 497.0USA (Utah) Stenothecoides elongata (230679)
Marjumian504.5 - 497.0Greenland (Peary Land) Stenothecoides groenlandica (49433 49434 49435 49449 49450 49481)
Undillan503.0 - 500.5Germany Stenothecoides indet. (186151)