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Helmersenia ladogensis

Lingulata - Siphonotretida - Siphonotretidae

Taxonomy

No taxonomic data are available

Sister species lacking formal opinion data
H. rotundata

Synonymy list
No taxonomic opinions are available

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
—Lophophorata
—PanbrachiopodaCarlson and Cohen 2020
RankNameAuthor
phylumBrachiopodaCuvier 1805
subphylumLinguliformeaWilliams et al. 1996
classLingulataGorjansky and Popov 1985
orderSiphonotretidaGorjansky 1960
superfamilySiphonotretoideaKutorga 1848
familySiphonotretidaeKutorga 1848
genusHelmerseniaPander 1861
speciesladogensis

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
No diagnoses are available
Measurements
No measurements are available
No ecological data are available

Age range: base of the Batyrbaian to the top of the Pakerort or 491.50000 to 483.80000 Ma

Collections (6 total)


Time interval Ma Country or state Original ID and collection number
Furongian497.0 - 486.85Estonia (Lääne) Helmersenia ladogensis (196615)
Batyrbaian - Early/Lower Ordovician491.5 - 471.3Russian Federation (Leningrad region) Helmersenia ladogensis (235436)
Pakerort486.85 - 483.8Estonia (Lääne-Viru) Helmersenia ladogensis (196616)
Pakerort486.85 - 483.8Russian Federation (Pskov Oblast) Helmersenia ladogensis (235886)
Pakerort486.85 - 483.8Estonia (Hiuu) Helmersenia ladogensis (196611 196613)