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Sirius

Description

Sirius (designated α Canis Majoris (Latinized to Alpha Canis Majoris, abbreviated Alpha CMa, α CMa)) is the brightest star in the night sky. Its name is derived from the Greek word Σείριος Seirios "glowing" or "scorching". With a visual apparent magnitude of −1.46, Sirius is almost twice as bright as Canopus, the next brightest star. Sirius is a binary star consisting of a main-sequence star of spectral type A0 or A1, termed Sirius A, and a faint white dwarf companion of spectral type DA2, termed Sirius B. The distance between the two varies between 8.2 and 31.5 astronomical units as they orbit every 50 years.


Source Data
SourceIDLink
Global Biodiversity Information Facility ID (GBIF)3244534https://www.gbif.org/species/3244534
PaleoBioDB ID (PBDB)10474https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=10474
Rankgenus
Taxonomy (GBIF)Life : Animalia : Mollusca : Gastropoda : Littorinimorpha : Capulidae : Sirius
Taxonomy (PBDB)Life : Animalia : Mollusca : Gastropoda : Capulidae : Sirius
Taxonomic Status (GBIF)accepted
Classification
(PBDB,GBIF)
RankNameAuthor
-Eukaryota
-OpisthokontaCavalier-Smith 1987
kingdomAnimalia
-Bilateria
-EubilateriaAx 1987
-ProtostomiaGrobben 1908
-Spiralia
superphylumLophotrochozoa
phylumMolluscaLinnaeus 1758
classGastropodaCuvier 1797
superorderHypsogastropoda
infraorderLittorinimorphaGolikov and Starobogtov 1975
superfamilyCapuloideaFleming 1822
familyCapulidaeFleming 1822
genusSiriusHedley 1900
Scientific NameSirius Hedley, 1900
Name Published InHedley C. (1900). Studies on Australian Mollusca. Part I. Proceedings of the Linnean Society of New South Wales. 25: 87-100.
Opinions (PBDB)
NameRankOpinionEvidenceAuthor
Siriusgenusbelongs to CapulidaeimpliedWilson, 1993
Siriusgenusbelongs to Neotaenioglossasecond handSepkoski, 2002
Siriusgenusbelongs to Capulidaestated without evidenceDarragh, 2017
Status (PBDB)extant
Taxon Size (PBDB)3
Extant Size (PBDB)1 (33%)
First Recorded Appearance33.9 - 28.4 Ma
Oligocene
Motilityfacultatively mobile, attached (based on Capulidae)
Visionlimited (based on Gastropoda)
Dietsuspension feeder (based on Capulidae)
Taphonomyaragonite (based on Gastropoda)
Primary Reference (PBDB)J. J. Sepkoski, Jr. 2002. A compendium of fossil marine animal genera. Bulletins of American Paleontology 363:1-560
Wikipediahttps://en.wikipedia.org/wiki/Sirius

Fossil Distribution

Subtaxa

NameStatusCommon Name(s)Fossil OccurrencesOldestYoungest
Sirius apicilirata
species
listed (PBDB)123.0 Ma
Miocene
23.0 Ma
Miocene
Sirius badius
species
accepted (GBIF)No associated record in PBDB
Sirius cupiens
species
accepted (GBIF)No associated record in PBDB
Sirius desponsus
species
accepted (GBIF)No associated record in PBDB
Sirius idoneus
species
accepted (GBIF)No associated record in PBDB
Sirius meracus
species
accepted (GBIF)No associated record in PBDB
Sirius subquadrata
species
listed (PBDB)116.0 Ma
Miocene
16.0 Ma
Miocene
Trichotropis apicilirata
species
accepted (GBIF)No associated record in PBDB
Trichotropis subquadrata
species
accepted (GBIF)No associated record in PBDB

Obsolete Names

NameSourceTaxon RankTaxonomy
Dolichosirius Iredale, 1931GBIFgenusAnimalia : Mollusca : Gastropoda : Littorinimorpha : Capulidae : Dolichosirius
Opposirius Iredale, 1931GBIFgenusAnimalia : Mollusca : Gastropoda : Littorinimorpha : Capulidae : Opposirius

Synonymy List

YearName and Author
1900Sirius Hedley
1993Sirius Wilson p. 166
2002Sirius Sepkoski, Jr.
2017Sirius Darragh p. 47

References

Sepkoski, Jr. J. J. (2002) A compendium of fossil marine animal genera, Bulletins of American Paleontology 363, 1-560
Wilson B. (1993) , Australian Marine Shells 1
Darragh T. A. (2017) Further Mollusca from the late Eocene Pallinup Formation, Eucla Basin, Western Australia, Records of the Western Australian Museum 32, 29-100 doi:10.18195/issn.0312-3162.32(1).2017.029-100
CAAB - via The Interim Register of Marine and Nonmarine Genera
Nomenclator Zoologicus. A list of the names of genera and subgenera in zoology from the tenth edition of Linnaeus, 1758 to the end of 2004. Digitised by uBio from vols. 1-9 of Neave (ed.), 1939-1996 plus supplementary digital-only volume. http://ubio.org/NomenclatorZoologicus (as at 2006). - via The Interim Register of Marine and Nonmarine Genera
Proc. Linn. Soc. N. S. Wales, 25 - via The Interim Register of Marine and Nonmarine Genera
SN2000: Brands, S. J. (compiler) 1989-2005. Systema Naturae 2000. Amsterdam, The Netherlands (2006 version). Available online at http://sn2000.taxonomy.nl/. - via The Interim Register of Marine and Nonmarine Genera
Sepkoski, J. J., Jr. (2002). A compendium of fossil marine animal genera. Bulletins of American Paleontology. 363, 1-560. - via The Interim Register of Marine and Nonmarine Genera
(as Trichotropidae) - via The Interim Register of Marine and Nonmarine Genera
Hedley C. (1900). Studies on Australian Mollusca. Part I. Proceedings of the Linnean Society of New South Wales. 25: 87-100. - via World Register of Marine Species
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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