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Janius

Source Data
SourceIDLink
Global Biodiversity Information Facility ID (GBIF)Not linked to a GBIF record.
PaleoBioDB ID (PBDB)29356https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=29356
Rankgenus (PBDB)
Taxonomy (PBDB)Life : Animalia : Brachiopoda : Rhynchonellata : Spiriferida : Cyrtiidae : Janius
Classification
(PBDB,GBIF)
RankNameAuthor
-Eukaryota
-OpisthokontaCavalier-Smith 1987
kingdomAnimalia
-Bilateria
-EubilateriaAx 1987
-ProtostomiaGrobben 1908
-Spiralia
superphylumLophotrochozoa
-Lophophorata
phylumBrachiopodaCuvier 1805
subphylumRhynchonelliformeaWilliams et al. 1996
classRhynchonellataWilliams et al. 1996
orderSpiriferidaWaagen 1883
suborderSpiriferidinaWaagen 1883
superfamilyCyrtioideaFrederiks 1924
familyCyrtiidaeFrederiks 1924
subfamilyEospiriferinaeSchuchert and Le Vene 1929
genusJaniusHavlicek 1957
Opinions (PBDB)
NameRankOpinionEvidenceAuthor
Janiusgenusbelongs to Eospiriferinaestated without evidenceBassett and Cocks, 1974
Janiusgenusbelongs to Eospiriferinaestated with evidenceJin and Chatterton, 1997
Janiusgenusbelongs to Spiriferidasecond handSepkoski, 2002
Janiusgenusbelongs to Eospiriferinaestated with evidenceWilliams et al., 2006
Status (PBDB)extinct
Taxon Size (PBDB)5
First Recorded Appearance443 - 431 Ma
Silurian
Last Recorded Appearance393 - 388 Ma
Devonian
Motilitystationary (based on Spiriferida)
Visionblind (based on Rhynchonellata)
Dietsuspension feeder (based on Spiriferida)
Ecospace CommentsBODY SIZE: Data from Williams et al. (2006).
Taphonomyminor folds, major ribbing (based on Janius)
Primary Reference (PBDB)J. J. Sepkoski, Jr. 2002. A compendium of fossil marine animal genera. Bulletins of American Paleontology 363:1-560

Fossil Distribution

Subtaxa

NameStatusCommon Name(s)Fossil OccurrencesOldestYoungest
Janius barrandi
species
listed (PBDB)4433 Ma
Silurian
426 Ma
Silurian
Janius exsul
species
accepted (GBIF)
listed (PBDB)
7433 Ma
Silurian
426 Ma
Silurian
Janius nobilis
species
accepted (GBIF)
listed (PBDB)
12443 Ma
Silurian
419 Ma
Early/Lower Devonian
Janius occidentalis
species
accepted (GBIF)
listed (PBDB)
6433 Ma
Silurian
426 Ma
Silurian

Synonymy List

YearName and Author
1957Janius Havlicek
1974Janius Bassett and Cocks
1997Janius Jin and Chatterton
2002Janius Sepkoski, Jr.
2006Janius Williams et al. p. 1696

References

Sepkoski, Jr. J. J. (2002) A compendium of fossil marine animal genera, Bulletins of American Paleontology 363, 1-560
Bassett M. G., Cocks L. R. M. (1974) A review of Silurian brachiopods from Gotland, Fossils and Strata 3, 1-56
Jin J., Chatterton B. D. E. (1997) Latest Ordovician-Silurian articulate brachiopods and biostratigraphy of the Avalanche Lake area, southwestern District of Mackenzie, Canada, Palaeontographica Canadiana 13, 1-62
Williams A., Brunton C. H. C., et al (2006) , Treatise on Invertebrate Paleontology Part H, Brachiopoda. Volume 5: Rhynchonelliformea (part) 5, 1689-2320
Data courtesy of: PBDB: The Paleobiology Database, Creative Commons CC-BY licenced. , GBIF: the Global Biodiversity Information Facility, various licences, iDigBio, various licences, and EOL: The Encyclopedia of Life (Open Data Public Domain). Because fossils are made of minerals too!
 
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