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Derbyia acutangula

Strophomenata - Orthotetida - Derbyiidae

Taxonomy
Schellwienella acutangula was named by Huang (1933).

It was recombined as Derbyia acutangula by Tong (1978), Zhan (1979), Liao (1980), Liao (1987), Shen and Shi (2007), Wu et al. (2019).

Sister species lacking formal opinion data
D. ciscoensis, D. deercreekensis, D. kansasensis, D. plattsmouthensis, D. robusta

Synonyms
Synonymy list
YearName and author
1933Schellwienella acutangula Huang p. 24 figs. Pl 3, figs 12-18
1977Magniderbyia guangdongensis Ni p. 325 figs. Pl 134, figs 7,8
1978Derbyia acutangula Tong p. 215 figs. Pl 78, fig 7
1979Derbyia acutangula Zhan p. 68 figs. Pl 4, figs 10,11
1979Magniderbyia lata Zhan p. 69 figs. Pl 11, figs 3-4
1980Derbyia acutangula Liao p. 255 figs. Pl 2, fig 25
1980Derbyia mucronata Liao p. 255 figs. Pl 2, figs 17-20
1987Derbyia acutangula Liao figs. Pl 3, figs 14-17
2007Derbyia acutangula Shen and Shi p. 30 figs. Pl 11, figs 1-26
2019Derbyia acutangula Wu et al. p. 619 fig. 6A

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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
orderOrthotetidaWaagen 1884
superfamilyOrthotetoidea
familyDerbyiidae
genusDerbyia
speciesacutangula()

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.

†Derbyia acutangula Huang 1933
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Invalid names: Derbyia guangdongensis Ni 1977 [synonym], Derbyia mucronata Liao 1980 [synonym]
Diagnosis
No diagnoses are available
Measurements
partNmeanminimummaximummedians.d.
shell height712.610.016.711.22.80

Composition: low Mg calcitep
Environment: marineuc
Locomotion: stationaryp
Attached: yesp
Life habit: low-level epifaunalp
Diet: suspension feederp
Vision: blindc
Created: 2010-02-15 05:25:57
Modified: 2010-02-15 07:25:57
Source: c = class, p = phylum, uc = unranked clade
References: Nesnidal et al. 2013, Aberhan et al. 2004

Age range: base of the Wuchiapingian to the top of the Changhsingian or 259.90000 to 252.17000 Ma

Collections (40 total)


Time interval Ma Country or state Original ID and collection number
Wuchiapingian259.9 - 254.17China (Sichuan) Magniderbyia sp. (56610)
Wuchiapingian259.9 - 254.17China (Guangxi) Derbyia acutangula (112364)
Wuchiapingian259.9 - 254.17China (Guangdong) Derbyia acutangula (95678) Magniderbyia guangdongensis (121089 121099) Magniderbyia lata (109797)
Wuchiapingian259.9 - 254.17China (Guizhou) Derbyia acutangula (112002 117463 138496 138498 138499 138500 138501 138506 138558) Derbyia mucronata (86600) Derbyia mucronata, Derbyia acutangula (111994 112001) Schellwienella acutangula (110326 110971 110972 110976)
Wuchiapingian259.9 - 254.17China (Qinghai) Megaderbyia subquadrata (103609)
Wuchiapingian259.9 - 254.17China (Chongqing) Derbyia acutangula (103449)
Changhsingian254.17 - 252.17China (Chongqing) Derbyia acutangula (94984 94985 138386 138389 138455 138456 138466) Derbyia guangdongensis (94966 94967 94968)
Changhsingian254.17 - 252.17China (Guangxi) Derbyia acutangula (138533)
Changhsingian254.17 - 252.17China (Sichuan) Derbyia mucronata, Derbyia acutangula (95285)
Changhsingian254.17 - 252.17China (Guangdong) Magniderbyia lata (95679)
Changhsingian254.17 - 252.17China (Guizhou) Derbyia acutangula (180415) Derbyia acutangula, Derbyia guangdongensis (117481 117486)