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Rhynchonellata - Orthida - Dicoelosiidae

Synonymy list
YearName and author
1850Dicoelosia King
1869Bilobites Quenstedt
1951Dicaelosia Amsden p. 77
1964Dicoelosia Wright
1974Dicoelosia Bassett and Cocks
1977Dicoelosia Mitchell
1997Dicoelosia Jin and Chatterton
2000Dicoelosia Williams et al. p. 800
2002Dicoelosia Sepkoski
2011Dicoelosia Rubel

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EubilateriaAx 1987
PanbrachiopodaCarlson and Cohen 2020
phylumBrachiopodaCuvier 1805
subphylumRhynchonelliformeaWilliams et al. 1996
classRhynchonellataWilliams et al. 1996
orderOrthidaSchuchert and Cooper 1932
suborderDalmanellidinaMoore 1952
superfamilyDalmanelloideaSchuchert 1913
familyDicoelosiidaeCloud 1948

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.

G. †Dicoelosia King 1850
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Dicaelosia johnsoni Sheehan 1976
Dicaelosia oklahomenesis Amsden 1956
Dicoelosia alticavata Whittard and Barker 1950
Dicoelosia anticipata Wright 1968
Dicoelosia baltica Musteikis and Puura 1983
Dicoelosia biloba Linnaeus 1758
Dicoelosia cathaysiensis Huang et al. 2013
Dicoelosia diversifrons Johnson et al. 1976
Dicoelosia indenta Cooper 1930
Dicoelosia inghami Wright 1968
Dicoelosia jonesridgensis Ross and Dutro 1966
Dicoelosia lata Wright 1964
Dicoelosia osloensis Wright 1968
Dicoelosia paralata Bassett 1972
Dicoelosia parvifrons Johnson et al. 1976
Dicoelosia simulata Mitchell 1977
Dicoelosia transversa Wright 1968
Dicoelosia varica Conrad 1842
Dicoelosia verneuiliana Beecher 1891
Invalid names: Bilobites Quenstedt 1869 [synonym]
No diagnoses are available
valve height82.091.443.042.100.652

Composition: low Mg calcitep
Entire body: yesg
Adult length: 1.0 to < 10g
Adult width: 1.0 to < 10g
Adult height: 1.0 to < 10g
Thickness: intermediateg
Folds: minorg
Ribbing: minorg
Spines: noneg
Internal reinforcement: minorg
Environment: marineuc
Locomotion: stationaryo
Attached: yeso
Life habit: epifaunalo
Diet: suspension feedero
Vision: blindc
Created: 2009-03-06 07:08:25
Modified: 2009-03-06 09:08:25
Source: g = genus, o = order, c = class, p = phylum, uc = unranked clade
References: Nesnidal et al. 2013, Aberhan et al. 2004, Williams et al. 2000

Age range: base of the Richmondian to the top of the Pragian or 449.60000 to 407.60000 Ma

Collections (406 total)

Oldest occurrences

Time interval Ma Country or state Original ID and collection number
Onnian - Cautleyan453.0 - 448.8Belgium D. lata (185311 185314 185317 185318) D. lata, D. jonesridgensis (185313)
Katian453.0 - 445.2United Kingdom D. inghami (163114)
Katian - Hirnantian453.0 - 443.4Sweden (Dalarne) D. indenta (73413)
Vormsi449.9 - 449.5Estonia D. sp. (168968) D. transversa (168967)
Richmondian449.6 - 445.5United Kingdom (Northern Ireland) D. simulata (89260)
Richmondian - Gamachian449.6 - 443.7Canada (Quebec) Bilobites indentus (37790)
Pirgu449.5 - 445.2Estonia D. sp. (168972) D. transversa (168975)
Pirgu449.5 - 445.2Norway (Ringerike) D. inghami (162233)
Pirgu449.5 - 445.2Sweden (Dalarne) D. transversa, D. indenta (163115)
Pirgu449.5 - 445.2Estonia (Lääne) D. anticipata (163067)

Youngest occurrences

Time interval Ma Country or state PBDB collection number
Lochkovian419.2 - 410.8Ukraine D. sp. (14152)
Lochkovian419.2 - 410.8USA (Tennessee) D. sp. (26852)
Lochkovian419.2 - 410.8USA (New York) D. sp. (24815)
Lochkovian419.2 - 410.8Canada (Quebec) D. sp. (654)
Lochkovian419.2 - 410.8Russian Federation (Bashkir) D. biloba (13942 13955)
Gedinnine416.0 - 412.3USA (Tennessee) Bilobites varicus (74661 75628)
Pragian410.8 - 407.6Russian Federation (Bashkortostan) D. biloba (81649 81654)
Pragian410.8 - 407.6Czech Republic (Prague) D. sp. (12071)
Pragian410.8 - 407.6Czech Republic D. dimera (12102 12103 12104)
Pragian410.8 - 407.6Canada (Northwest Territories) Dicoelosia indet. (75582)