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Boreosomus

Ptycholepiformes - Ptycholepididae

Taxonomy
Boreosomus was named by Stensiö (1921) [Sepkoski's age data: Tr Indu Tr Ladi Sepkoski's reference number: 863].

It was assigned to Acrolepidae by Lehman (1952); to Palaeoniscidae by Nielsen (1942), Beltan (1968), Beltan (1972) and Uyeno (1978); to Palaeonisciformes by Sepkoski (2002); and to Ptycholepididae by Cartanyà (1999) and Neuman (2015).

Synonymy list
YearName and author
1921Boreosomus Stensiö p. 210
1942Boreosomus Nielsen p. 10
1952Boreosomus Lehman p. 70
1968Boreosomus Beltan p. 23
1972Boreosomus Beltan p. 290
1978Boreosomus Uyeno p. 193
1999Boreosomus Cartanyà p. 540
2002Boreosomus Sepkoski
2015Boreosomus Neuman pp. 562 - 563

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
RankNameAuthor
—Osteichthyes()
—Actinopterygii()
infraclassChondrosteiMüller 1844
orderPtycholepiformes
familyPtycholepididaeBrough 1939
genusBoreosomus

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.

G. †Boreosomus Stensiö 1921
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†Boreosomus arcticus Woodward 1912
†Boreosomus gillioti Priem 1924
†Boreosomus merlei Beltan 1957
†Boreosomus piveteaui Nielsen 1942
†Boreosomus reuterskioldi Stensiö 1921
†Boreosomus scaber Stensiö 1921
Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: marinesubp
Locomotion: actively mobilec
Created: 2009-07-20 21:50:54
Modified: 2009-07-20 23:50:54
Source: c = class, subp = subphylum
References: Hendy et al. 2009, Carroll 1988

Age range: base of the Spathian to the top of the Ladinian or 251.30000 to 237.00000 Ma

Collections (34 total)


Time interval Ma Country or state Original ID and collection number
Griesbachian251.902 - 250.5Greenland B. piveteaui (153362 153364 153365 153366)
Smithian251.3 - 247.2Svalbard and Jan Mayen Acrolepis arctica (120367) B. arcticus (120303) B. reuterskioldi (120228 120231 120304 120366) B. reuterskioldi, B. arcticus (120296) B. scaber (120372)
Smithian251.3 - 247.2Canada (British Columbia) B. sp. (90301 153369)
Spathian251.3 - 247.2Svalbard and Jan Mayen B. scaber (120222 120373 120374)
Olenekian251.2 - 247.2China (Gansu) B. sp. (105775)
Dienerian250.5 - 251.2Svalbard and Jan Mayen Acrolepis arctica (153411) B. arcticus (120223)
Dienerian250.5 - 251.2Madagascar B. gillioti (153373 153374 153378) B. sp., B. gillioti (153683)
Dienerian250.5 - 251.2China (Guizhou) B. sp. (225582)
Dienerian250.5 - 251.2Madagascar (Diana) B. gillioti (153773)
Aegean - Bithynian247.2 - 242.0USA (Arizona) B. sp. (34888)
Ladinian242.0 - 237.0Spain B. sp. (148734 149852)
Ladinian242.0 - 237.0Svalbard and Jan Mayen B. sp. (120224 120369 120370 120371)
Longobardian242.0 - 235.0Spain (Tarragona) B. sp. (109710)