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Ascidiacea (sea squirt)

Ascidiacea

Taxonomy
Ascidiacea was named by Nielsen (1995). It is extant.

It was assigned to Urochordata by Shu et al. (2001); to Urochordata by Nelson et al. (2016); and to Tunicata by Wendt (2018).

Subtaxa
Choanites, Enterogona, Khmeriamorpha, Thaliacea
Sister taxa
Thaliacea

Synonymy list
YearName and author
1995Ascidiacea Nielsen
2001Ascidiacea Shu et al. p. 472
2016Ascidiacea Nelson et al. p. 15
2018Ascidiacea Wendt p. 587

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
RankNameAuthor
phylumChordataHaeckel 1874
subphylumTunicataLamarck 1816
classAscidiaceaNielsen 1995
classAscidiaceaNielsen 1995

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. Ascidiacea Nielsen 1995 [sea squirt]
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G. †Choanites Mantell 1822
Or. Enterogona Perrier 1898
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Fm. Didemnidae Milne Edwards 1841
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G. †Micrascidites Deflandre and Deflandre-Rigaud 1956
Or. †Khmeriamorpha Wendt 2018
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Fm. †Khmeriidae Montanaro Gallitelli 1954
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G. †Imilce Flügel 1975
G. †Khmeria Mansuy 1914
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†Khmeria minima Wendt 2018
†Khmeria problematica Mansuy 1914
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Invalid names: Khmeria pumila Tchudinova 1965 [synonym], Osium importans de Gregorio 1930 [synonym]
†Khmeria stolonifera Wendt 2018
Invalid names: Osium de Gregorio 1930 [synonym]
G. †Permosoma
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†Permosoma tuberculatum Greco 1935
†Permosoma tunicatum Jaekel 1918
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Invalid names: Sphaerospongia permotessellata Parona 1933 [synonym]
G. †Zardinisoma Wendt 2018
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†Zardinisoma cassianum Wendt 2018
†Zardinisoma japonicum Wendt 2018
†Zardinisoma pyriforme Wendt 2018
Cl. Thaliacea Nielsen 1995
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Invalid names: Doliolida [empty], Pyrosomida [empty], Salpida [empty]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
Locomotion: stationarysubp
Attached: yessubp
Life habit: low-level epifaunalsubp
Diet: suspension feedersubp
Created: 2007-12-11 06:22:34
Modified: 2009-10-12 01:26:13
Source: subp = subphylum
Reference: Kiessling 2003

Age range

Maximum range based only on fossils: base of the Roadian to the top of the Julian or 272.30000 to 232.00000 Ma
Minimum age of oldest fossil (stem group age): 268.8 Ma

Collections (19 total)


Time interval Ma Country or state Original ID and collection number
Roadian272.3 - 268.8Iran Imilce newelli (75767)
Roadian272.3 - 268.8Croatia Imilce newelli, Imilce lata (75510)
Wordian266.9 - 264.28Indonesia Khmeria problematica (75571)
Wordian266.9 - 264.28Italy Khmeria importans (113433) Osium sp., Osium importans (233340) Permosoma tunicatum, Permosoma tuberculatum (75474)
Wordian - Capitanian266.9 - 259.51Tunisia (Madanin) Permosoma permotessellata (42092)
Wordian - Capitanian266.9 - 259.51Cambodia Khmeria problematica, Khmeria stolonifera (233582)
Capitanian264.28 - 259.51USA (New Mexico) Permosoma sp. (24203 95715 95716 107698)
Capitanian264.28 - 259.51Cambodia Khmeria problematica (124988)
Wuchiapingian259.9 - 254.17Azerbaijan Khmeria pumila (116766)
Changhsingian254.17 - 252.17Greece Permosoma sp. (74927)
Changhsingian254.17 - 252.17Azerbaijan Khmeria pumila (116753)
Changhsingian254.17 - 252.17China (Sichuan) Permosoma sp. (36221)
Changhsingian254.17 - 252.17Armenia Khmeria pumila (113726)
Julian235.0 - 232.0Italy Khmeria minima, Zardinisoma cassianum, Zardinisoma pauciplacophorum, Zardinisoma pyriforme, Zardinisoma polyplacophorum (66197)