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Thaerodonta recedens

Strophomenata - Strophomenida - Sowerbyellidae

Taxonomy
Leptaena recedens was named by Sardeson (1892).

It was recombined as Thaerodonta recedens by Wang (1949), Howe (1965), Howe (1988); it was recombined as Eoplectodonta recedens by Catalani (1987); it was recombined as Eochonetes recedens by Bauer and Stigall (2016).

Sister species lacking formal opinion data
T. plumera

Synonyms
Synonymy list
YearName and author
1892Leptaena recedens Sardeson p. 330 figs. pl. 4, figs. 29-32.
1892Leptaena saxea Sardeson p. 330 figs. pl. 4, figs. 33–35
1949Thaerodonta recedens Wang p. 20 figs. pl. 11A, figs. 1-3
1949Thaerodonta saxea Wang p. 21 figs. pl. 11B, figs. 1–5.
1965Thaerodonta recedens Howe pp. 649 - 651 figs. P1. 81, figs. 13-17
1972Thaerodonta saxea Howe figs. pl. 1 f. 10; pl. 2 f. 5, 9-10; pl. 3 f. 1-6
1987Eoplectodonta recedens Catalani p. 211
1988Thaerodonta recedens Howe
2016Eochonetes recedens Bauer and Stigall pp. 906 - 907 fig. 9.7–9.13

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
—Lophophorata
—PanbrachiopodaCarlson and Cohen 2020
phylumBrachiopodaCuvier 1805
RankNameAuthor
subphylumRhynchonelliformeaWilliams et al. 1996
classStrophomenataWilliams et al 1996
orderStrophomenidaOpik 1934
superfamilyPlectambonitoideaJones 1928
familySowerbyellidaeOpik 1930
subfamilySowerbyellinaeOpik 1930
genusThaerodontaReed 1917
speciesrecedens()

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.

†Thaerodonta recedens Sardeson 1892
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Diagnosis
ReferenceDiagnosis
J. E. Bauer and A. L. Stigall 2016Lateral margins acute to gently sloping; anterior margin truncate. Ventral anterior margin occasionally forming broad sulcus. Accessory teeth subdued if present. Cardinal fossettes/denticles originating in center of hinge line; averaging 5–9 per cardinal extremity, evenly spaced along hinge line, typically increasing in size laterally.
Measurements
No measurements are available
Composition: low Mg calcitep
Entire body: yesg
Adult length: 1.0 to < 10g
Adult width: 10 to < 100g
Adult height: 1.0 to < 10g
Folds: noneg
Ribbing: minorg
Spines: noneg
Internal reinforcement: noneg
Environment: marineuc
Locomotion: stationaryo
Attached: yesp
Life habit: epifaunalo
Diet: suspension feedero
Vision: blindc
Created: 2009-06-10 11:43:45
Modified: 2009-06-10 13:43:45
Source: g = genus, o = order, c = class, p = phylum, uc = unranked clade
References: Aberhan et al. 2004, Nesnidal et al. 2013, Hendy 2009

Age range: base of the Edenian to the top of the Richmondian or 451.00000 to 445.50000 Ma

Collections (12 total)


Time interval Ma Country or state Original ID and collection number
Edenian451.0 - 450.2Canada (Northwest Territories) Thaerodonta recedens (24636)
Edenian - Maysvillian451.0 - 449.6Canada (Northwest Territories) Thaerodonta recedens (192143)
Edenian - Maysvillian451.0 - 449.6USA (Illinois, Iowa) Eoplectodonta recedens (23810)
Edenian - Maysvillian451.0 - 449.6USA (Minnesota) Eoplectodonta recedens (23282)
Maysvillian450.2 - 449.6USA (Illinois, Iowa) Eoplectodonta recedens (23811)
Maysvillian450.2 - 449.6USA (Iowa) Thaerodonta recedens (26683)
Maysvillian450.2 - 449.6USA (Minnesota) Eoplectodonta recedens (23283)
Richmondian449.6 - 445.5USA (Iowa) Thaerodonta recedens (13260 183357)
Richmondian449.6 - 445.5USA (Tennessee) Thaerodonta recedens (13496 192098 192104)