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Williamia

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Description

Williamia is a genus of small sea snails or false limpets, marine pulmonate gastropod molluscs in the family Siphonariidae, the false (air-breathing) limpets.

From Wikipedia article at https://en.wikipedia.org/wiki/Williamia, which is released under the Creative Commons Attribution-Share-Alike License 3.0.

Source Data

Source	ID	Link
Global Biodiversity Information Facility ID (GBIF)	2291225	https://www.gbif.org/species/2291225
PaleoBioDB ID (PBDB)	12289	https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=12289

Rank

genus

Taxonomy (GBIF)

Life : Animalia : Mollusca : Gastropoda : Siphonariida : Siphonariidae : Williamia

Taxonomy (PBDB)

Life : Animalia : Mollusca : Gastropoda : Basommatophora : Siphonariidae : Williamia

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
subclass	Pulmonata	Cuvier 1817
-	Basommatophora
superfamily	Siphonarioidea	Gray 1840
family	Siphonariidae	Gray 1840
genus	Williamia	Monterosato 1884

Scientific Name

Williamia Monterosato, 1884

Name Published In

Nomenclatura generica e specifica di alcune Conchiglie mediterranee, p. 150

Opinions (PBDB)

Name	Rank	Opinion	Evidence	Author
Williamia	genus	belongs to Siphonariidae	stated with evidence	Woodring, 1928
Williamia	genus	belongs to Basommatophora	second hand	Sepkoski, 2002

Status (PBDB)

extant

Taxon Size (PBDB)

Extant Size (PBDB)

1 (50%)

First Recorded Appearance

33.9 - 28.4 Ma
Oligocene

Environment

terrestrial (based on Pulmonata)

Motility

facultatively mobile, attached (based on Siphonariidae)

Vision

limited (based on Gastropoda)

Diet

grazer (based on Siphonariidae)

Taphonomy

aragonite (based on Pulmonata)

Primary Reference (PBDB)

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

Wikipedia

https://en.wikipedia.org/wiki/Williamia

Fossil Distribution

Subtaxa

Name	Status	Common Name(s)	Fossil Occurrences	Oldest	Youngest
Williamia gussoni species	accepted (GBIF)	No associated record in PBDB
Williamia krebsii species	accepted (GBIF)	No associated record in PBDB
Williamia magellanica species	accepted (GBIF)	No associated record in PBDB
Williamia maxwelli species	accepted (GBIF)	No associated record in PBDB
Williamia parva ✝ species	accepted (GBIF) listed (PBDB)		1	3.60 Ma Pliocene	3.60 Ma Pliocene
Williamia peltoides species	accepted (GBIF)	No associated record in PBDB
Williamia radiata species	accepted (GBIF)	No associated record in PBDB
Williamia raincourti species	accepted (GBIF)	No associated record in PBDB
Williamia rugulosa species	accepted (GBIF)	No associated record in PBDB
Williamia subspiralis species	accepted (GBIF)	No associated record in PBDB
Williamia taurosimplex species	accepted (GBIF)	No associated record in PBDB

Obsolete Names

Name	Source	Taxon Rank	Taxonomy
Brondelia Bourguignat, 1862	GBIF	genus	Animalia : Mollusca : Gastropoda : Siphonariida : Siphonariidae : *Brondelia*
Parascutum Cossmann, 1890	GBIF	genus	Animalia : Mollusca : Gastropoda : Siphonariida : Siphonariidae : *Parascutum*
Roya Iredale, 1912	GBIF	genus	Animalia : Mollusca : Gastropoda : Siphonariida : Siphonariidae : *Roya*
Scutulum Monterosato, 1877	GBIF	genus	Animalia : Mollusca : Gastropoda : Siphonariida : Siphonariidae : *Scutulum*
Allerya Mörch, 1877	GBIF	genus	Animalia : Mollusca : Gastropoda : Siphonariida : Siphonariidae : *Allerya*
Williamsia Carus, 1890	GBIF	genus	Animalia : Mollusca : Gastropoda : Siphonariida : Siphonariidae : *Williamsia*

Synonymy List

Year	Name and Author
1884	Williamia Monterosato p. 150
1928	Williamia Woodring p. 111
2001	Williamia Todd
2002	Williamia Sepkoski, Jr.

References

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

Woodring W. P. (1928) Miocene Molluscs from Bowden, Jamaica. Part 2: Gastropods and discussion of results, Contributions to the Geology and Palaeontology of the West Indies

Todd J. A. (2001) Systematic list of gastropods in the Panama Paleontology Project collections

Aphia2006 - via The Interim Register of Marine and Nonmarine Genera

CoL2006 - via The Interim Register of Marine and Nonmarine Genera

Nomencl. Gen. Spec. - 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

WoRMS (Mar 2013) - via The Interim Register of Marine and Nonmarine Genera

SN2000/Bouchet et al., 2001 - via The Interim Register of Marine and Nonmarine Genera

Turgeon, D. D., J. F. Quinn, Jr., A. E. Bogan, E. V. Coan, F. G. Hochberg, W. G. Lyons, et al., 1998: Common and scientific names of aquatic invertebrates from the United States and Canada: Mollusks, 2nd ed.. American Fisheries Society Special Publication 26. 526. - via Integrated Taxonomic Information System (ITIS)

Marshall B.A. (1981) The genus Williamia in the western Pacific (Mollusca: Siphonariidae). New Zealand Journal of Zoology 8: 487-492. - via World Register of Marine Species

Monterosato T. A. (di) (1884). Nomenclatura generica e specifica di alcune conchiglie mediterranee. Palermo, Virzi, 152 pp. - via World Register of Marine Species

International Commission on Zoological Nomenclature. Opinion 1410 Williamia Monterosato, 1884 (Mollusca, Gastropoda): conserved.Bulletin of Zoological Nomenclature 43(3), 249-250 (1986) - via Official Lists and Indexes of Names in Zoology

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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