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Pistosauria

Reptilia - Sauropterygia

Taxonomy
Pistosauria was named by Baur (1890).

It was reranked as the suborder Pistosauria by Kuhn (1946); it was reranked as the suborder Pistosaurida by Kuhn (1971); it was reranked as the superfamily Pistosauria by Rieppel (2000); it was reranked as the unranked clade Pistosauria by O'Keefe (2001).

It was assigned to Sauropterygia by Kuhn (1946) and Kuhn (1971); to Pistosauroidea by Rieppel (2000); to Sauropterygia by O'Keefe (2001); and to Sauropterygia by Rieppel et al. (2002).

Synonymy list
YearName and author
1890Pistosauria Baur
1946Pistosauria Kuhn p. 59
1971Pistosaurida Kuhn p. 19
2000Pistosauria Rieppel
2001Pistosauria O'Keefe p. 19
2002Pistosauria Rieppel et al. p. 577

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
phylumChordataHaeckel 1847
subphylumVertebrata
superclassGnathostomata
Osteichthyes()
Sarcopterygii
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
Tetrapoda
Reptiliomorpha
RankNameAuthor
Anthracosauria
Batrachosauria()
Cotylosauria()
Amniota
Sauropsida
classReptilia
subclassEureptilia()
Romeriida
Diapsida()
orderSauropterygia
Pistosauria(Baur 1890)
Pistosauria(Baur 1890)

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
O. Rieppel et al. 2002Nasals absent; pineal foramen displaced anteriorly; jugal entering upper temporal arch behind maxilla; supraoccipital U-shaped; squamosals meeting behind parietal; squamosal forming box-like suspensorium; ventrally directed basioccipital tubera in complex articulation with pterygoids; anteromedial corner of upper temporal fossa closed off from orbit; braincase recessed deeply below parietal skull table; subcentral foramina present; ectepicondylar groove absent.
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: marineo
Locomotion: actively mobilec
Created: 2017-04-17 10:38:36
Modified: 2017-04-17 10:38:36
Source: o = order, c = class, subp = subphylum
References: Carroll 1988, Bush and Bambach 2015, Hendy et al. 2009

Age range: base of the Anisian to the top of the Late/Upper Maastrichtian or 247.20000 to 66.00000 Ma

Collections (714 total)

Oldest occurrences

Time interval Ma Country or state Original ID and collection number
Anisian247.2 - 242.0Germany Nothosaurus strunzi (130793) Pistosaurus longaevus (138136)
Illyrian247.2 - 242.0USA (Nevada) Augustasaurus hagdorni (98011)
Anisian - Ladinian247.2 - 237.0Italy (Trento) Pistosaurus longaevus (99310)
Illyrian - Fassanian247.2 - 235.0Poland (Upper Silesia) Pistosaurus longaevus (196691)
Ladinian242.0 - 237.0Poland Pistosaurus longaevus (138137)
Ladinian242.0 - 237.0Germany (Thuringia) Pistosaurus longaevus (138101)
Ladinian242.0 - 237.0Spain (Tarragona) Pistosauria indet. (109710)
Fassanian242.0 - 235.0Poland Pistosaurus longaevus (149685)
Carnian237.0 - 228.0Svalbard and Jan Mayen Pistosauridae indet. (44452 145895)
Julian235.0 - 232.0Italy (Udine) Bobosaurus forojuliensis (130790)

Youngest occurrences

Time interval Ma Country or state PBDB collection number
Late/Upper Maastrichtian70.6 - 66.0Netherlands (Limburg) Elasmosauridae indet. (67133 142084 143252 143254)
Late/Upper Maastrichtian70.6 - 66.0Argentina (Chubut) Aristonectes parvidens (97872)
Late/Upper Maastrichtian70.6 - 66.0Chile Elasmosauridae indet., Aristonectinae indet. (157301) Mauisaurus sp., Aristonectinae indet. (91416)
Late/Upper Maastrichtian70.6 - 66.0Argentina (Río Negro) Mauisaurus sp. (140998) Plesiosauria indet., Mauisaurus sp. (140997) Tuarangisaurus cabazai (140999)
Late/Upper Maastrichtian70.6 - 66.0Netherlands Elasmosauridae indet. (138910)
Late/Upper Maastrichtian70.6 - 66.0USA (South Carolina) Plesiosauria indet. (201601)
Late/Upper Maastrichtian70.6 - 66.0Belgium (Liège) Elasmosauridae indet. (143253)
Late/Upper Maastrichtian70.6 - 66.0Chile (Biobio) Aristonectes sp. (150921)
Late/Upper Maastrichtian70.6 - 66.0Canada (Nunavut) Plesiosauria indet. (118411)
Late/Upper Maastrichtian70.6 - 66.0Argentina (Santa Cruz) Elasmosauridae indet. (181059)