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Gorbyoceras ✝

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Source Data

Source	ID	Link
Global Biodiversity Information Facility ID (GBIF)	4624565	https://www.gbif.org/species/4624565
PaleoBioDB ID (PBDB)	12513	https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=12513

Rank

genus

Taxonomy (GBIF)

Life : Animalia : Mollusca : Cephalopoda : Nautilida : Nautilidae : Gorbyoceras

Taxonomy (PBDB)

Life : Animalia : Mollusca : Cephalopoda : Orthocerida : Proteoceratidae : Gorbyoceras

Taxonomic Status (GBIF)

accepted

Classification
(PBDB,GBIF)

Rank	Name	Author
-	Eukaryota
-	Opisthokonta	Cavalier-Smith 1987
kingdom	Animalia
-	Bilateria
-	Eubilateria	Ax 1987
-	Protostomia	Grobben 1908
-	Spiralia
superphylum	Lophotrochozoa
phylum	Mollusca	Linnaeus 1758
class	Cephalopoda	Cuvier 1797
subclass	Orthoceratoidea	Zhuravleva 1994
order	Orthocerida	Kuhn 1940
family	Proteoceratidae	Flower 1962
genus	Gorbyoceras	Shimizu & Obata 1935

Scientific Name

Gorbyoceras Shimizu & Obata, 1935

Name Published In

J. Shanghai Sci. Inst., (Sect. 2) 2

Opinions (PBDB)

Name	Rank	Opinion	Evidence	Author
Gorbyoceras	genus	belongs to Stereoplasmoceratidae	stated with evidence	Sweet, 1958
Gorbyoceras	genus	belongs to Proteoceratidae	stated with evidence	Flower, 1962
Gorbyoceras	genus	belongs to Proteoceratidae	stated without evidence	Evans, 1994
Gorbyoceras	genus	belongs to Proteoceratidae	stated with evidence	Kröger, 2013

Status (PBDB)

extinct

Taxon Size (PBDB)

First Recorded Appearance

485 - 478 Ma
Paleozoic

Last Recorded Appearance

439 - 433 Ma
Silurian

Environment

marine (based on Orthocerida)

Motility

actively mobile (based on Orthocerida)

Vision

well-developed (based on Cephalopoda)

Diet

carnivore (based on Orthocerida)

Taphonomy

aragonite (based on Orthocerida)

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

Name	Status	Common Name(s)	Fossil Occurrences	Oldest	Youngest
Gorbyoceras alternestriatum ✝ species	listed (PBDB)		3	453 Ma Late/Upper Ordovician	450 Ma Late/Upper Ordovician
Gorbyoceras clathroannulatum ✝ species	listed (PBDB)
Gorbyoceras crossi species	accepted (GBIF)	No associated record in PBDB
Gorbyoceras curvatum species	accepted (GBIF)	No associated record in PBDB
Gorbyoceras duncanae species	accepted (GBIF)	No associated record in PBDB
Gorbyoceras gorbyi ✝ species	listed (PBDB)		2	450 Ma Late/Upper Ordovician	450 Ma Late/Upper Ordovician
Gorbyoceras gracile ✝ species	listed (PBDB)		4	456 Ma Late/Upper Ordovician	450 Ma Late/Upper Ordovician
Gorbyoceras hammelli ✝ species	listed (PBDB)		7	450 Ma Late/Upper Ordovician	450 Ma Late/Upper Ordovician
Gorbyoceras simile species	accepted (GBIF)	No associated record in PBDB
Gorbyoceras tetreauense ✝ species	accepted (GBIF) listed (PBDB)		6	461 Ma Middle Ordovician	461 Ma Middle Ordovician
Gorbyoceras textumaraneum ✝ species	listed (PBDB)		1	452 Ma Late/Upper Ordovician	452 Ma Late/Upper Ordovician
Orthoceras clathroannulatum species	accepted (GBIF)	No associated record in PBDB
Orthoceras gorbyi species	accepted (GBIF)	No associated record in PBDB
Orthoceras gracile species	accepted (GBIF)	No associated record in PBDB
Orthoceras hammelli species	accepted (GBIF)	No associated record in PBDB
Orthoceras textumaraneum species	accepted (GBIF)	No associated record in PBDB
Spyroceras alternestriatum species	accepted (GBIF)	No associated record in PBDB

Synonymy List

Year	Name and Author
1935	Gorbyoceras Shimizu and Obata
1935	Hammelloceras Shimizu and Obata p. 6
1958	Gorbyoceras Sweet
1962	Gorbyoceras Flower
1964	Gorbyoceras Sweet p. 256
1964	Gorbyoceras Teichert et al. p. 256
1994	Gorbyoceras Evans p. 20
2013	Gorbyoceras Kröger

References

Sepkoski, Jr. J. J. (2002) A compendium of fossil marine animal genera, Bulletins of American Paleontology 363, 1-560

Sweet W. C. (1958) The middle ordovician of the Oslo region, Norway 10. Nautiloid Cephalopods, Norsk Geologisk Tidsskrift 38, 1-178

Flower R. H. (1962) Part 1, Revision of Buttsoceras, Part 2, Notes on the Michelinoceratida, State Bureau of Mines and Mineral Resources, New Mexico Institute of Mining and Technology, Memoir 10, 1-58

Teichert C., Kummel B., et al (1964) Cephalopoda - general features - Endoceratoidea - Actinoceratoidea - Nautiloidea - Bactritoidea, Treatise on Invertebrate Paleontology K 3, 1-519

Evans D. H. (1994) The Cephalopod Fauna of the Bardahessaigh Formation (Caradoc Series) of Pomeroy, County Tyrone, Irish Journal of Earth Sciences 13, 11-29

Kröger B. (2013) The cephalopods of Boda Limestone, Late Ordovocian, of Dalarna, Sweden, European Journal of Taxonomy 41, 1-110

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

SN2000 unverified - 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

J. Shanghai Sci. Inst., (Sect. 2) 2 - via The Interim Register of Marine and Nonmarine Genera

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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