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Sessilia

Thecostraca

Taxonomy
Sessilia was named by Lamarck (1818). It is extant.

It was reranked as the unranked clade Sessilia by Chan et al. (2021).

It was assigned to Thoracica by Martin and Davis (2001) and Jones (2007); to Cirripedia by Collareta et al. (2018); to Unilatera by Gale (2019); and to Thoracicalcarea by Chan et al. (2021).

Sister taxa
Balanomorpha, Verrucomorpha

Synonyms
Synonymy list
YearName and author
1818Sessilia Lamarck
1923Brachylepadomorpha Withers
1980Brachylepadomorpha Collins p. 22
2000Brachylepadomorpha Carriol and Collins p. 143
2001Sessilia Martin and Davis p. 59
2007Sessilia Jones p. 293
2018Sessilia Collareta et al. p. 15
2019Sessilia Gale
2021Brachylepadomorpha Chan et al.
2021Sessilia Chan et al.

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Ecdysozoa
Panarthropoda
phylumArthropodaLatreille 1829
Deuteropoda
Mandibulata
RankNameAuthor
PancrustaceaZrzavý and Štys 1997
subphylumCrustaceaBrünnich 1772
classThecostraca(Gruvel 1905)
subclassCirripedia(Rafinesque 1816)
infraclassThoracica(Darwin 1854)
superorderThoracicalcarea()
Sessilia(Lamarck 1818)
Sessilia(Lamarck 1818)

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.

Unr. Sessilia Lamarck 1818
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Or. Balanomorpha Pilsbry 1916
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Superfm. Balanoidea Leach 1817
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Fm. Balanidae Leach 1817
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Subfm. Acastinae Kolbasov 1993
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G. Acasta Leach 1817
Subfm. Amphibalaninae Pitombo 2004
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G. Amphibalanus Pitombo 2000
G. Fistulobalanus Zullo 1984
Subfm. Archaeobalaninae Newman and Ross 1976
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G. †Actinobalanus Moroni 1867
G. Archaeobalanus Menesini 1971
G. Bathybalanus Hoek 1913
G. Chirona Gray 1835
G. Conopea Say 1822
G. Hesperibalanus Pilsbry 1916
G. †Kathpalmeria Ross 1965
G. Membranobalanus Pilsbry 1916
G. Solidobalanus Hoek 1913
G. Striatobalanus Hoek 1913
G. †Zullobalanus Buckeridge 1989
Subfm. Balaninae Leach 1817
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G. Balanus Da Costa 1778 [barnacle]
G. Tamiosoma Conrad 1856
G. †Zulloa Ross and Newman 1996
Subfm. Concavinae Zullo 1992
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G. †Alessandriella Carriol and Cahuzac 2001
G. Arossia Newman 1982
G. †Chesaconcavus Zullo 1992
G. Concavus Newman 1982
G. Menesiniella Newman 1982
G. Paraconcavus Zullo 1992
G. †Zulloconcavus Carriol 2000
Subfm. Megabalaninae Newman 1979
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G. Megabalanus Hoek 1913
G. †Notomegabalanus Newman 1979
Subfm. Semibalaninae Newman and Ross 1976
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G. Semibalanus Pilsbry 1916
Invalid names: Archaeobalanidae Newman and Ross 1976 [synonym], Creusiinae Baluck and Radwanski 1967 [empty], Emersoninae Ross and Newman 1967 [empty], Wanellinae Chan et al. 2021 [empty]
Fm. Pyrgomatidae Gray 1825 [coral barnacle]
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Subfm. Ceratoconchinae Newman and Ross 1976
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G. Ceratoconcha Kramberger-Gorjanovic 1889
Subfm. Megatrematinae Holthuis 1982
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G. Megatrema Sowerby 1823
G. Pyrgomina Baluk and Radwanski 1967
Subfm. Pyrgomatinae Gray 1825
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G. Cantellius Ross and Newman 1973
G. Cionophorus Ross and Newman 2001
G. Creusia Leach 1817
G. Hiroa Ross and Newman 1973
G. Parahoekia Ross and Newman 1995
G. Pyrgoma Leach 1817
G. †Savignium Leach 1825
Fm. †Brachylepadidae Woodward 1901
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Brachylepas americana Zullo et al. 1987
Brachylepas angulosa Collins 1973
Brachylepas guascoi Bosquet 1857
Brachylepas naissanti Hebert 1855
Brachylepas thieli Gale 2020
G. †Calvatilepas Gale and Vidovic 2023
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Calvatilepas recurvus Gale and Vidovic 2023
G. †Crithmumlepas Gale and Vidovic 2023
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Crithmumlepas aycliffensis Gale and Vidovic 2023
Crithmumlepas hoensis Gale and Vidovic 2023
G. †Epibrachylepas Gale 2014
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Epibrachylepas smeetsi Bosquet 1857
G. †Fallaxlepas Gale 2020
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Fallaxlepas fallax Darwin 1851
Fallaxlepas nervosa Alekseev 2009
G. †Parabrachylepas Gale 2014
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Parabrachylepas ifoensis Withers 1935
Superfm. Chthamaloidea Darwin 1854
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Fm. Catophragmidae Utinomi 1968
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G. Catophragmus Sowerby 1826
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Fm. Chthamalidae Darwin 1854
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G. Chinochthamalus Foster 1980
G. Chthamalus Ranzani 1817
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Chthamalus fragilis Darwin 1854
G. Euraphia Conrad 1837
G. Nesochthamalus Foster and Newman 1987
G. Notochthamalus Foster and Newman 1987
Fm. Pachylasmatidae Utinomi 1968
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Subfm. Eolasmatinae Jones 2000
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G. †Eolasma
G. Neoeolasma Gale 2020
G. Eutomolasma Jones 2000
Subfm. Metalasmatinae Jones 2000
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G. Metalasma Jones 2000
Subfm. Pachylasmatinae Utinomi 1968
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G. Eurylasma Jones 2000
G. Microlasma Jones 2000
G. Pachylasma Darwin 1854
G. Tetrapachylasma Foster 1988
Fm. Waikalasmatidae Ross and Newman 2001
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G. Waikalasma Buckeridge 1983
Superfm. Coronuloidea Leach 1817
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Fm. Austrobalanidae Newman and Ross 1976
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G. Austrobalanus Pilsbry 1916
Fm. Bathylasmatidae Newman and Ross 1971
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Subfm. Bathylasmatinae Newman and Ross 1971
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G. Bathylasma Newman and Ross 1971
Subfm. Hexelasmatinae Newman and Ross 1976
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G. Hexelasma Lang et al. 1940
Fm. Chelonibiidae Pilsbry 1916 [turtle barnacle]
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Subfm. Chelonibiinae Pilsbry 1916
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G. Chelonibia Leach 1817
G. Stephanolepas Fischer 1886
Subfm. †Protochelonibiinae Harzhauser and Newman 2011
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G. †Protochelonibia Harzhauser and Newman 2011
Fm. Coronulidae Leach 1817 [whale barnacle]
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G. Cetopirus Ranzani 1817
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Cetopirus polysyrinx Collareta et al. 2022
G. Coronula Bruguière 1792
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Coronula bifida Bronn 1831
Coronula diadema Linnaeus 1767
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Invalid names: Coronula macsotayi Weisbord 1971 [synonym]
Coronula reginae Darwin 1854
G. Cryptolepas Dall 1872
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Cryptolepas murata Zullo 1961
G. Cylindrolepas Pilsbry 1916
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G. †Emersonius Ross 1967
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Emersonius cybosyrinx Ross and Newman 1967
G. Platylepas Gray 1825
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Platylepas decorata Darwin 1854
Platylepas wilsoni Ross 1963
G. Stomatolepas Pilsbry 1916
G. Tubicinella Lamarck 1802
G. Xenobalanus Steenstrup 1851
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Xenobalanus globicipitis Steenstrup 1851
Invalid names: Coronulinae Leach 1817 [empty], Platylepadidae Newman and Ross 1976 [synonym]
Fm. Tetraclitidae Gruvel 1903
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G. Newmanella Ross 1969
G. Tesseropora Pilsbry 1916
G. Tetraclita Schumacher 1817
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Tetraclita floridana Pilsbry 1916
G. †Tetraclitella Hiro 1939
Invalid names: Tetraclitoidea Gruvel 1903 [synonym]
Superfm. Elminoidea Foster 1982
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Fm. Elminidae Foster 1982
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G. †Matellonius Buckeridge 1983
G. †Protelminius Buckeridge and Newman 2010
Infraor. Neobalanomorpha Gale 2014
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Superfm. Chionelasmatoidea Buckeridge 1983
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Fm. Chionolasmatidae Buckeridge 1983
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G. Chionelasmus Pilsbry 1911
Invalid names: Pachylasmatoidea Pilsbry 1916 [empty]
Superfm. †Pachydiadematoidea Chan et al. 2021
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Fm. †Pachydiadematidae Chan et al. 2021
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Pachydiadema cretacea Withers 1935
Or. Verrucomorpha Pilsbry 1916
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Fm. †Eoverrucidae Gale 2020
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G. †Eoverruca
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Eoverruca aubensis Gale 2020
Eoverruca barringtonensis Gale and Vidovic 2023
Eoverruca hewitti Withers 1935
Eoverruca symmetrica Gale 2020
Fm. †Pycnolepadidae Gale and Vidovic 2023
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G. †Faxelepas Gale 2014
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Faxelepas bruennichi Withers 1914
Faxelepas ignabergensis Carlsson 1953
Faxelepas landenica Withers 1953
Faxelepas paronai de Alessandri 1895
G. †Pedupycnolepas Gale 2014
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Pedupycnolepas articulata Collins 1980
Pedupycnolepas lamellatus Gale and Vidovic 2023
G. †Pycnolepas Withers 1914
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Pycnolepas batchelorum Gale and Vidovic 2023
Pycnolepas fimbriata Withers 1912
Pycnolepas orientalis Kolosváry 1966
Pycnolepas rigida Sowerby 1836
Pycnolepas scalaris Withers 1914
Pycnolepas tithonica Withers 1912
Fm. Verrucidae Darwin 1854
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G. Altiverruca Pilsbry 1916
G. Brochiverruca Zevina 1993
G. Cameraverruca Pilsbry 1916
G. Costatoverruca Young 1998
G. Cristallinaverruca Young 2002
G. Gibbosaverruca Young 2002
G. Metaverruca Pilsbry 1916
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Invalid names: Verruca capsula Hoek 1913 [synonym], Verruca halotheca Pilsbry 1907 [synonym]
G. Newmaniverruca Young 1998
G. †Priscoverruca Gale 2014
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Priscoverruca prisca Bosquet 1854
G. Rostratoverruca Broch 1922
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Rostratoverruca pusilla Bosquet 1857
G. Verruca Schumacher 1817
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Subg. †Verruca (Verruca) Schumacher 1817
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Verruca (Verruca) nuciformis Buckeridge 1983
Verruca (Verruca) rocana Steinman 1921
Verruca (Verruca) tasmanica Buckeridge 1983
Verruca alabamensis Perreault and Buckeridge 2019
Verruca gailgoedertae Perreault and Buckeridge 2019
Verruca jagti Gale 2014
Verruca sauria Buckeridge 2011
Verruca sorrellae Perreault and Buckeridge 2019
Verruca stroemia Müller 1776
G. †Youngiverruca Gale 2014
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Invalid names: Brachylepadomorpha Withers 1923 [invalid subgroup]
Diagnosis
No diagnoses are available