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Psammosteidae

Pteraspidomorpha - Pteraspidiformes - Psammosteidae

Synonymy list
YearName and author
1896Psammosteidae Traquair
1963Psammosteidae Jordan p. 585
2009Psammosteidae Moloshnikov p. 197
2016Psammosteidae Nelson et al. p. 29
2017Psammosteidae Randle and Sansom p. 596

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumCraniata
superclassPteraspidomorphi(Goodrich 1909)
RankNameAuthor
classPteraspidomorpha
subclassHeterostraciLankester 1868
orderPteraspidiformesBerg 1940
suborderPteraspidoidei(Janvier 1996)
familyPsammosteidaeTraquair 1896
familyPsammosteidaeTraquair 1896

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.

Fm. †Psammosteidae Traquair 1896
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G. †Acanthaspis Newberry 1875
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†Acanthaspis arctica Heintz 1929
G. †Dyptychosteus Preobrazhenskii 1910
G. †Oredezhosteus Moloshnikov 2009
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†Oredezhosteus kuleshovi Moloshnikov 2009
†Oredezhosteus livonicus Obruchev and Mark-Kurik 1965
G. †Placosteus Agassiz 1843
G. †Psammosteus Agassiz 1844
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†Psammosteus arenatus Agassiz 1845
†Psammosteus granulatus M'Coy 1848
†Psammosteus maeandrinus Agassiz 1845
†Psammosteus paradoxus Agassiz 1845
†Psammosteus praecursor Obruchev 1947
G. †Pycnosteus Preobrajenski 1911
Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: hydroxyapatitesubp
Locomotion: actively mobilep
Created: 2007-09-27 04:49:26
Modified: 2017-03-09 14:07:44
Source: subp = subphylum, p = phylum
Reference: Kiessling 2004

Age range: base of the Emsian to the top of the Pennsylvanian or 407.60000 to 298.90000 Ma

Collections (24 total)


Time interval Ma Country or state Original ID and collection number
Early/Lower Emsian409.1 - 402.5Germany (Alken) Drepanaspis sp. (27049)
Early/Lower Emsian409.1 - 402.5Germany (Gemuenden) Drepanaspis gemuendensis (26903)
Emsian407.6 - 393.3Belarus (Gormel) Psammosteus toriensis (232955)
Eifelian393.3 - 387.7Russian Federation Pycnosteus sp., Psammosteus sp., Psammosteidae indet. (90332)
Eifelian393.3 - 387.7Belarus Pycnosteus sp. (225881 225882)
Eifelian393.3 - 387.7Estonia Pycnosteus sp. (225793)
Early/Lower Givetian388.1 - 383.7Belarus Pycnosteus sp. (225886)
Early/Lower Givetian388.1 - 383.7Latvia Pycnosteus palaeformis (225850) Pycnosteus palaeformis, Pycnosteus pauli (225802)
Early/Lower Givetian388.1 - 383.7Estonia Pycnosteus palaeformis (225804) Pycnosteus pauli (225803)
Early/Lower Givetian388.1 - 383.7Russian Federation Psammosteus sp., Psammosteidae indet. (90333)
Givetian387.7 - 382.7Svalbard and Jan Mayen (Spitsbergen) Psammosteidae indet. (225592)
Early/Lower Frasnian383.7 - 382.4Latvia Oredezhosteus livonicus (90347)
Early/Lower Frasnian383.7 - 382.4Russian Federation Oredezhosteus kuleshovi (90346) Psammosteus praecursor (90343) Psammosteus sp. (90335)
Late/Upper Givetian380.2 - 382.7Russian Federation Psammosteus sp. (90334)
Late/Upper Givetian380.2 - 382.7Estonia Psammosteus spp. (225778)
Late/Upper Givetian380.2 - 382.7Belarus Psammosteus praecursor (225888)
Late/Upper Frasnian379.5 - 376.1Russian Federation Psammosteus sp. (90336)
Pennsylvanian323.2 - 298.9Ireland Psammosteus granulatus (132818)
Pennsylvanian323.2 - 298.9United Kingdom Psammosteus vermicularis (132819)