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Psammosteiformes

Pteraspidomorpha - Psammosteiformes

Taxonomy
Psammosteiformes was named by Berg (1937).

It was assigned to Heterostraci by Moloshnikov (2009).

Subtaxa
Pycnosteidae

Synonymy list
YearName and author
1937Psammosteiformes Berg
2009Psammosteiformes Moloshnikov p. 197

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
RankNameAuthor
superclassPteraspidomorphi(Goodrich 1909)
classPteraspidomorpha
subclassHeterostraciLankester 1868
orderPsammosteiformesBerg 1937
orderPsammosteiformesBerg 1937

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.

Or. †Psammosteiformes Berg 1937
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Fm. †Pycnosteidae Tarlo 1962
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G. †Pycnolepis Halstead Tarlo 1964
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†Pycnolepis splendens Halstead Tarlo 1964
G. †Tartuosteus Obruchev 1961
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†Tartuosteus giganteus Gross 1933
†Tartuosteus maximus Mark-Kurik 1965
†Tartuosteus zheleznogorskensis Moloshnikov 2007
Invalid names: Rohonosteus Tarlo 1962 [synonym]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: marinesubp
Locomotion: actively mobilep
Created: 2017-04-17 15:11:50
Modified: 2017-04-17 15:11:50
Source: subp = subphylum, p = phylum
References: Kiessling 2004, Carroll 1988

Age range: base of the Eifelian to the top of the Early/Lower Frasnian or 393.47000 to 379.00000 Ma

Collections (13 total)


Time interval Ma Country or state Original ID and collection number
Eifelian393.47 - 387.95Russian Federation Tartuosteus sp. (90332)
Eifelian393.47 - 387.95Belarus Tartuosteus sp. (225853)
Eifelian393.47 - 387.95Estonia Pycnolepis splendens (239665) Tartuosteus sp. (225791) Tartuosteus sp., Pycnolepis splendens (225793)
Early/Lower Givetian387.95 - 385.9Estonia Tartuosteus giganteus (225804) Tartuosteus luhai, Tartuosteus giganteus (225803) Tartuosteus maximus (225851)
Early/Lower Givetian387.95 - 385.9Latvia Tartuosteus luhai, Tartuosteus giganteus (225802 225850)
Early/Lower Givetian387.95 - 385.9Russian Federation Tartuosteus sp. (90333)
Givetian387.95 - 382.31Estonia Tartuosteus giganteus (239669)
Early/Lower Frasnian382.31 - 379.0Russian Federation Tartuosteus zheleznogorskensis (90343)