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Graciloceratidae ✝

Description

The Graciloceratidae is a family of nautiloid cephalopods from the Middle and Upper Ordovician belonging to the Oncocerida, characterized by exogastric cyrtocones that expand slightly or moderately and have thin walled, orthochoantic marginal or subventral, tubular siphuncles (Sweet 1964).


From Wikipedia article at https://en.wikipedia.org/wiki/Graciloceratidae, which is released under the Creative Commons Attribution-Share-Alike License 3.0.
Source Data
SourceIDLink
Global Biodiversity Information Facility ID (GBIF)4622639https://www.gbif.org/species/4622639
PaleoBioDB ID (PBDB)127824https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=127824
Rankfamily
Taxonomy (GBIF)Life : Animalia : Mollusca : Cephalopoda : Graciloceratidae
Taxonomy (PBDB)Life : Animalia : Mollusca : Cephalopoda : Oncocerida : Graciloceratidae
Taxonomic Status (GBIF)accepted
Classification
(PBDB,GBIF)
RankNameAuthor
-Eukaryota
-OpisthokontaCavalier-Smith 1987
kingdomAnimalia
-Bilateria
-EubilateriaAx 1987
-ProtostomiaGrobben 1908
-Spiralia
superphylumLophotrochozoa
phylumMolluscaLinnaeus 1758
classCephalopodaCuvier 1797
orderOncocerida
familyGraciloceratidaeFlower in Flower and Kummel 1950
Scientific NameGraciloceratidae
Opinions (PBDB)
NameRankOpinionEvidenceAuthor
Graciloceratidaefamilybelongs to Oncoceratidastated without evidenceKröger, 2007
Graciloceratidaefamilybelongs to Oncoceridastated with evidenceKröger et al., 2009
Status (PBDB)extinct
Taxon Size (PBDB)16
First Recorded Appearance472 - 466 Ma
Ordovician
Last Recorded Appearance446 - 444 Ma
Paleozoic
Motilityfast-moving (based on Cephalopoda)
Visionwell-developed (based on Cephalopoda)
Dietcarnivore (based on Oncocerida)
Taphonomyaragonite (based on Oncocerida)
Primary Reference (PBDB)C. Teichert, B. Kummel, and WC Sweet, HB Stenzel, WM Furnish, BF Glenister, HK Erben, RC Moore, DE Nodine Zeller. 1964. Cephalopoda - general features - Endoceratoidea - Actinoceratoidea - Nautiloidea - Bactritoidea. Treatise on Invertebrate Paleontology K(3):1-519
Wikipediahttps://en.wikipedia.org/wiki/Graciloceratidae

Fossil Distribution

Subtaxa

NameStatusCommon Name(s)Fossil OccurrencesOldestYoungest
Eorizoceras ✝
genus		accepted (GBIF)
listed (PBDB)		1461 Ma
Middle Ordovician		461 Ma
Middle Ordovician
Graciloceras ✝
genus		accepted (GBIF)
listed (PBDB)		2461 Ma
Middle Ordovician		450 Ma
Late/Upper Ordovician
Isbergoceras ✝
genus		listed (PBDB)2461 Ma
Middle Ordovician		461 Ma
Middle Ordovician
Kundoceras ✝
genus		accepted (GBIF)
listed (PBDB)		1472 Ma
Early/Lower Ordovician		472 Ma
Early/Lower Ordovician
Piersaloceras ✝
genus		accepted (GBIF)
listed (PBDB)		3452 Ma
Late/Upper Ordovician		446 Ma
Late/Upper Ordovician
Pomerantsoceras ✝
genus		accepted (GBIF)
listed (PBDB)		1446 Ma
Late/Upper Ordovician		446 Ma
Late/Upper Ordovician
Porkunioceras ✝
genus		accepted (GBIF)
listed (PBDB)		1446 Ma
Late/Upper Ordovician		446 Ma
Late/Upper Ordovician
Ringoceras ✝
genus		accepted (GBIF)
listed (PBDB)		2450 Ma
Late/Upper Ordovician		450 Ma
Late/Upper Ordovician

Synonymy List

YearName and Author
1950Graciloceratidae Flower in Flower and Kummel
2007Graciloceratidae Kröger p. 282
2009Graciloceratidae Kröger et al.
2019Graciloceratidae Kröger and Aubrechtová

References

Teichert C., Kummel B., et al (1964) Cephalopoda - general features - Endoceratoidea - Actinoceratoidea - Nautiloidea - Bactritoidea, Treatise on Invertebrate Paleontology K 3, 1-519
Kröger B. (2007) Concentrations of juvenile and small adult cephalopods in the Hirnantian cherts (Late Ordovician) of Porkuni, Estonia, Acta Palaeontologica Polonica 52 3, 591-608
Kröger B., Zhang Y., et al (2009) Discosorids and Oncocerids (Cephalopoda) of the Middle Ordovician Kunda and Aseri Regional Stages of Baltoscandia and the early evolution of these groups, Geobios 42, 273-293 doi:doi:10.1016/j.geobios.2008.09.006
Kröger B., Aubrechtová M. (2019) The cephalopods of the Kullsberg Limestone Formation, Upper Ordovician, central Sweden and the effects of reef diversification on\r\ncephalopod diversity, Journal of Systematic Palaeontology, 1-35
Benton, M.J. (ed). (1993). The Fossil Record 2. Chapman & Hall, London, 845 pp. - 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!
Quick NavTopFossil DistributionSubtaxaSynonymy ListReferences
 
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