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Streptacis ✝

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Source Data

Source	ID	Link
Global Biodiversity Information Facility ID (GBIF)	3243886	https://www.gbif.org/species/3243886
PaleoBioDB ID (PBDB)	12203	https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=12203

Rank

genus

Taxonomy (GBIF)

Life : Animalia : Mollusca : Gastropoda : Streptacididae : Streptacis

Taxonomy (PBDB)

Life : Animalia : Mollusca : Gastropoda : Heterostropha : Streptacididae : Streptacis

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	Gastropoda	Cuvier 1797
order	Heterostropha
superfamily	Streptacidoidea	Knight 1931
family	Streptacididae	Knight 1931
genus	Streptacis	Meek 1871

Scientific Name

Streptacis Meek, 1871

Name Published In

Proc. Acad. Nat. Sci. Philad., 1871

Opinions (PBDB)

Name	Rank	Opinion	Evidence	Author
Streptacis	genus	belongs to Streptacididae	stated without evidence	Knight, 1931
Streptacis	genus	belongs to Streptacididae	stated with evidence	Knight et al., 1960
Streptacis	genus	belongs to Heterostrophia	second hand	Sepkoski, 2002
Streptacis	genus	belongs to Streptacididae	stated without evidence	Bandel, 2002
Streptacis	genus	belongs to Streptacididae	stated with evidence	Mazaev, 2015

Status (PBDB)

extinct

Taxon Size (PBDB)

First Recorded Appearance

347 - 331 Ma
Carboniferous

Last Recorded Appearance

83.5 - 70.6 Ma
Late/Upper Cretaceous

Motility

actively mobile (based on Gastropoda)

Vision

limited (based on Gastropoda)

Taphonomy

aragonite (based on Gastropoda)

Primary Reference (PBDB)

F. B. Meek. 1871. A preliminary list of fossils collected by Dr. Hayden in Colorado, New Mexico, and California, with brief descriptions of a few of the new species. Proceedings of the American Philosophical Society 11:425-431

Fossil Distribution

Subtaxa

Name	Status	Common Name(s)	Fossil Occurrences	Oldest	Youngest
Loxonema permiana species	accepted (GBIF)	No associated record in PBDB
Loxonema subgracilis species	accepted (GBIF)	No associated record in PBDB
Streptacis bogradi species	accepted (GBIF)	No associated record in PBDB
Streptacis complanata ✝ species	accepted (GBIF) listed (PBDB)
Streptacis fragilis ✝ species	accepted (GBIF) listed (PBDB)		1	254 Ma Permian	254 Ma Permian
Streptacis inflata ✝ species	accepted (GBIF) listed (PBDB)		2	290 Ma Permian	290 Ma Permian
Streptacis ingens ✝ species	accepted (GBIF) listed (PBDB)
Streptacis meeki ✝ species	accepted (GBIF) listed (PBDB)		1	315 Ma Carboniferous	315 Ma Carboniferous
Streptacis orientalis ✝ species	accepted (GBIF) listed (PBDB)		1	265 Ma Permian	265 Ma Permian
Streptacis permiana ✝ species	listed (PBDB)		8	265 Ma Permian	254 Ma Permian
Streptacis piercei ✝ species	accepted (GBIF) listed (PBDB)		1	279 Ma Permian	279 Ma Permian
Streptacis pravis ✝ species	accepted (GBIF) listed (PBDB)		1	254 Ma Permian	254 Ma Permian
Streptacis regularis ✝ species	accepted (GBIF) listed (PBDB)		1	254 Ma Permian	254 Ma Permian
Streptacis scalpta ✝ species	accepted (GBIF) listed (PBDB)		2	315 Ma Carboniferous	314 Ma Carboniferous
Streptacis subgracilis ✝ species	listed (PBDB)		5	272 Ma Permian	272 Ma Permian
Streptacis whitfieldi ✝ species	accepted (GBIF) listed (PBDB)		3	318 Ma Carboniferous	314 Ma Carboniferous

Obsolete Names

Name	Source	Taxon Rank	Taxonomy
Aciculina Meek, 1871	GBIF	genus	Animalia : Mollusca : Gastropoda : Streptacididae : *Aciculina*

Synonymy List

Year	Name and Author
1871	Streptacis Meek p. 173
1931	Streptacis Knight
1960	Streptacis Knight et al. p. 322
2002	Streptacis Bandel p. 49
2002	Streptacis Sepkoski, Jr.
2015	Streptacis Mazaev p. 981
2016	Streptacis Nützel and Ketwetsuriya p. 509

References

Meek F. B. A preliminary list of fossils collected by Dr. Hayden in Colorado, New Mexico, and California, with brief descriptions of a few of the new species., Proceedings of the American Philosophical Society 11, 425-431

Knight J. B. (1931) The gastropods of the St. Louis, Missouri, Pennsylvanian outlier: Aclisina and Streptacis, Journal of Paleontology 5 1, 1-15

Knight J. B., Cox L. R., et al (1960) Systematic descriptions, Treatise on Invertebrate Paleontology. Mollusca I 1, 169-339

Bandel K. (2002) About the Heterostropha (Gastropoda) from the Carboniferous and Permian, Mitteilungen Geologie-Paläontologie Institut der Universitat Hamburg 86, 45-80

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

Mazaev A. V. (2015) Upper Kazanian (Middle Permian) gastropods of the Volga–Urals Region, Paleontological Journal 49 8, 869-986 doi:10.1134/S0031030115080018

Nützel A., Ketwetsuriya C. (2016) Systematic palaeontology, in Permian gastropods from the Tak Fa Limestone, Nakhon Sawan, northern Thailand, Bulletin of Geosciences 91, 481-513

GBIF/Paleo Database - 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

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

Proc. Acad. Nat. Sci. Philad., 1871 - 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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