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Matthevia

Xiphosura - Sessilia - Scalpellidae

Taxonomy
Matthevia was named by Walcott (1885) [Sepkoski's age data: Cm Fran-u O Trem-l Sepkoski's reference number: 274]. It is not extant.

It was assigned to Paleoloricata by Sepkoski (2002); and to Mattheviidae by Fisher (1962) and Vendrasco and Runnegar (2004).

Synonymy list
YearName and author
1885Matthevia Walcott
1962Matthevia Fisher p. 128
2002Matthevia Sepkoski, Jr.
2004Matthevia Vendrasco and Runnegar p. 683

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RankNameAuthor
kingdomAnimalia()
subfamilyStramentinaeWithers 1920
Phosphatothoracica
Calamida
familyScalpellidaePilsbry 1907
familyCalanticidaeZevina 1978
suborderLepadomorphaGruvel 1905
Unilatera
familyNeolepadidae(Yamaguchi et al. 2004)
familyBrachylepadidaeWoodward 1901
orderSessiliaLamarck 1818
PoecilophysideaPepato et al. 2010
orderAcariformes(Zakhvatkin 1952)
subphylumChelicerataHeymons 1901
EuchelicerataWeygoldt and Paulus 1979
Prosomapoda
classXiphosura()
orderXiphosuridaLatreille 1802
Planaterga
Dekatriata
SclerophorataKamenz et al. 2011
classArachnidaLamarck 1801
orderParasitiformes(Reuter 1909)
suborderMesostigmataCanestrini 1891
suborderSarcoptiformesReuter 1909
infraorderOribatidaDugès 1834
ParhyposomataGrandjean 1969
Osteichthyes()
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
RankNameAuthor
Tetrapoda
Reptiliomorpha
Anthracosauria
Batrachosauria()
Cotylosauria()
Amniota
Sauropsida
classReptilia
subclassEureptilia()
Romeriida
Diapsida()
Spiralia
superphylumLophotrochozoa
Lophophorata
phylumBrachiopodaCuvier 1805
subphylumRhynchonelliformeaWilliams et al. 1996
classStrophomenataWilliams et al 1996
orderProductidaSarycheva and Sokolskaya 1959
suborderLyttoniidina
superfamilyLyttonioidea
phylumMollusca
Serialia
classPolyplacophorade Blainville 1816
subclassPaleoloricata()
classRostroconchia
orderConocardiida()
superfamilyHippocardioideaPojeta and Runnegar 1976
familyHippocardiidae
familyMattheviidae
genusMatthevia

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.

Diagnosis
ReferenceDiagnosis
M. J. Vendrasco and B. Runnegar 2004Thick, massive subconical intermediate and tail valves with a barbed arrowhead-shaped outline in dorsal view, two tunnels in valve interior, elongate (length/width between 1.5 and 2.0), large embayment along the anterior margin, long apical area; intermediate valves shorter and wider than tail valves; head valves flat, holoperipheral growth style, subcentral mucro.