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Homalopoma

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Description

Homalopoma, common name the dwarf turbans, is a genus of mostly very small sea snails with a calcareous operculum, marine gastropoda molluscs in the family Colloniidae.

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

Source Data

Source	ID	Link
Global Biodiversity Information Facility ID (GBIF)	2293236	https://www.gbif.org/species/2293236
PaleoBioDB ID (PBDB)	8864	https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=8864

Rank

genus

Taxonomy (GBIF)

Life : Animalia : Mollusca : Gastropoda : Trochida : Colloniidae : Homalopoma

Taxonomy (PBDB)

Life : Animalia : Mollusca : Gastropoda : Turbinidae : Homalopoma

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	Orthogastropoda	Ponder and Lindberg 1997
superorder	Vetigastropoda	Salvini-Plawen 1980
superfamily	Turbinoidea	Rafinesque 1815
family	Turbinidae	Rafinesque 1815
genus	Homalopoma	Carpenter 1864

Scientific Name

Homalopoma Carpenter, 1864

Name Published In

Carpenter P.P. (1864). Supplementary report on the present state of our knowledge with regard to the Mollusca of the west coast of North America. Reports of the British Association for the Advancement of Science. 33 (for 1863): 517-686.

Opinions (PBDB)

Name	Rank	Opinion	Evidence	Author
Homalopoma	genus	belongs to Turbinidae	stated without evidence	Turner, 1938
Homalopoma	genus	belongs to Homalopomatinae	stated with evidence	Keen, 1960
Homalopoma	genus	belongs to Liotiinae	stated with evidence	MacNeil, 1960
Homalopoma	genus	belongs to Homalopomatinae	stated without evidence	Fleming, 1966
Homalopoma	genus	belongs to Turbinidae	stated with evidence	Ladd, 1982
Homalopoma	genus	belongs to Homalopomatinae	stated with evidence	Kase, 1984
Homalopoma	genus	belongs to Turbinidae	stated without evidence	Squires, 1988
Homalopoma	genus	belongs to Colloniinae	stated with evidence	Pacaud and Le Renard, 1995
Homalopoma	genus	belongs to Turbinidae	stated with evidence	Todd, 2001
Homalopoma	genus	belongs to Archaeogastropoda	second hand	Sepkoski, 2002
Homalopoma	genus	belongs to Colloniinae	stated with evidence	Bouchet et al., 2005
Homalopoma	genus	belongs to Turbinidae	stated without evidence	Kiel, 2006
Homalopoma	genus	belongs to Turbinidae	stated with evidence	Squires, 2008

Status (PBDB)

extant

Taxon Size (PBDB)

Extant Size (PBDB)

7 (37%)

First Recorded Appearance

251 - 247 Ma
Early/Lower Triassic

Motility

actively mobile (based on Turbinidae)

Vision

limited (based on Gastropoda)

Diet

grazer (based on Turbinidae)

Taphonomy

aragonite (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

Wikipedia

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

External Images

Fossil Distribution

Subtaxa

Name	Status	Common Name(s)	Fossil Occurrences	Oldest	Youngest
Homalopoma (Boutillieria) ✝ subgenus	listed (PBDB)		13	251 Ma Early/Lower Triassic	59.2 Ma Paleocene
Homalopoma (Cantrainea) subgenus	listed (PBDB)		10	41.3 Ma Eocene	0 Ma Extant
Homalopoma (Homalopoma) subgenus	listed (PBDB)		1	37.2 Ma Eocene	0 Ma Extant
Homalopoma (Leptothyropsis) subgenus	listed (PBDB)		4	7.25 Ma Miocene	0 Ma Extant
Homalopoma (Panacochlea) subgenus	listed (PBDB)				0 Ma Extant
Calliostoma pacificum species	accepted (GBIF)	No associated record in PBDB
Collonia degrangei species	accepted (GBIF)	No associated record in PBDB
Homalopoma acaste species	accepted (GBIF)	No associated record in PBDB
Homalopoma africanum species	accepted (GBIF)	No associated record in PBDB
Homalopoma agulhasense species	accepted (GBIF)	No associated record in PBDB
Homalopoma agulhasensis species	accepted (GBIF)	No associated record in PBDB
Homalopoma albidum species	accepted (GBIF)	No associated record in PBDB
Homalopoma alfi species	accepted (GBIF)	No associated record in PBDB
Homalopoma amussitatum species	accepted (GBIF)	No associated record in PBDB
Homalopoma baculum species	accepted (GBIF)	No associated record in PBDB
Homalopoma berryi species	accepted (GBIF)	No associated record in PBDB
Homalopoma bicolor species	accepted (GBIF)	No associated record in PBDB
Homalopoma boffii species	accepted (GBIF)	No associated record in PBDB
Homalopoma carmelae species	accepted (GBIF)	No associated record in PBDB
Homalopoma clippertonense species	accepted (GBIF)	No associated record in PBDB
Homalopoma concors species	accepted (GBIF)	No associated record in PBDB
Homalopoma coombsi ✝ species	accepted (GBIF) listed (PBDB)
Homalopoma cordellensis species	accepted (GBIF)	No associated record in PBDB
Homalopoma cunninghami species	accepted (GBIF)	No associated record in PBDB
Homalopoma degrangei ✝ species	listed (PBDB)		1	23.0 Ma Miocene	23.0 Ma Miocene
Homalopoma donghaiense species	accepted (GBIF)	No associated record in PBDB
Homalopoma draperi species	accepted (GBIF)	No associated record in PBDB
Homalopoma druidi species	accepted (GBIF)	No associated record in PBDB
Homalopoma effingeri ✝ species	accepted (GBIF) listed (PBDB)
Homalopoma emulum species	accepted (GBIF)	No associated record in PBDB
Homalopoma eoa species	accepted (GBIF)	No associated record in PBDB
Homalopoma eugenii species	accepted (GBIF)	No associated record in PBDB
Homalopoma ganensis species	accepted (GBIF)	No associated record in PBDB
Homalopoma granuliferum species	accepted (GBIF)	No associated record in PBDB
Homalopoma granulosa ✝ species	listed (PBDB)		2	23.0 Ma Miocene	13.7 Ma Miocene
Homalopoma granulosum species	accepted (GBIF)	No associated record in PBDB
Homalopoma grippii species	accepted (GBIF)	No associated record in PBDB
Homalopoma himuquitanense species	accepted (GBIF)	No associated record in PBDB
Homalopoma hui species	accepted (GBIF)	No associated record in PBDB
Homalopoma imberculi species	accepted (GBIF)	No associated record in PBDB
Homalopoma incarnatum species	accepted (GBIF)	No associated record in PBDB
Homalopoma indutum species	accepted (GBIF)	No associated record in PBDB
Homalopoma keyurare species	accepted (GBIF)	No associated record in PBDB
Homalopoma lacunatum species	accepted (GBIF)	No associated record in PBDB
Homalopoma laevigatum species	accepted (GBIF)	No associated record in PBDB
Homalopoma linnei species	accepted (GBIF)	No associated record in PBDB
Homalopoma lunellum species	accepted (GBIF)	No associated record in PBDB
Homalopoma luridum species	accepted (GBIF)	No associated record in PBDB
Homalopoma mactanense species	accepted (GBIF)	No associated record in PBDB
Homalopoma maculatum species	accepted (GBIF)	No associated record in PBDB
Homalopoma maculosa species	accepted (GBIF)	No associated record in PBDB
Homalopoma mikkelsenae species	accepted (GBIF)	No associated record in PBDB
Homalopoma mimicum species	accepted (GBIF)	No associated record in PBDB
Homalopoma nocturnum species	accepted (GBIF)	No associated record in PBDB
Homalopoma nubisrubri species	accepted (GBIF)	No associated record in PBDB
Homalopoma occidentalis species	accepted (GBIF)	No associated record in PBDB
Homalopoma pacifica ✝ species	listed (PBDB)		2	23.0 Ma Miocene	11.6 Ma Miocene
Homalopoma parvum species	accepted (GBIF)	No associated record in PBDB
Homalopoma paucicostata species	listed (PBDB)		4	3.60 Ma Pliocene	0 Ma Extant
Homalopoma paucicostatum species	accepted (GBIF)	No associated record in PBDB
Homalopoma picta species	accepted (GBIF)	No associated record in PBDB
Homalopoma profundum species	accepted (GBIF)	No associated record in PBDB
Homalopoma quantillum species	accepted (GBIF)	No associated record in PBDB
Homalopoma radiatum species	accepted (GBIF)	No associated record in PBDB
Homalopoma raulini species	accepted (GBIF)	No associated record in PBDB
Homalopoma rotundatum species	accepted (GBIF)	No associated record in PBDB
Homalopoma rubidum species	accepted (GBIF)	No associated record in PBDB
Homalopoma sangarense species	accepted (GBIF)	No associated record in PBDB
Homalopoma sanguineum species	accepted (GBIF)	No associated record in PBDB
Homalopoma sanguineus species	listed (PBDB)				0 Ma Extant
Homalopoma shisuiense species	accepted (GBIF)	No associated record in PBDB
Homalopoma subobsoletum species	accepted (GBIF)	No associated record in PBDB
Homalopoma tagaroae species	accepted (GBIF)	No associated record in PBDB
Homalopoma tapparonei species	accepted (GBIF)	No associated record in PBDB
Homalopoma umbilicatum species	accepted (GBIF)	No associated record in PBDB
Homalopoma umpquaensis ✝ species	accepted (GBIF) listed (PBDB)		6	47.8 Ma Eocene	41.3 Ma Eocene
Homalopoma unicum species	accepted (GBIF)	No associated record in PBDB
Homalopoma vancouverensis ✝ species	listed (PBDB)
Homalopoma wattsi ✝ species	listed (PBDB)		9	59.2 Ma Paleocene	47.8 Ma Eocene
Homalopoma whipplei species	accepted (GBIF)	No associated record in PBDB
Homalopoma zephyrium species	accepted (GBIF)	No associated record in PBDB
Leptothyra echomenus species	accepted (GBIF)	No associated record in PBDB
Leptothyra roseocincta species	accepted (GBIF)	No associated record in PBDB
Leptothyra syngenes species	accepted (GBIF)	No associated record in PBDB
Leptothyra vancouverensis species	accepted (GBIF)	No associated record in PBDB
Monodonta wattsi species	accepted (GBIF)	No associated record in PBDB

Obsolete Names

Name	Source	Taxon Rank	Taxonomy
Leptothyra J.G.Cooper, 1867	GBIF	genus	Animalia : Mollusca : Gastropoda : Trochida : Colloniidae : *Leptothyra*
Homalapoma Woodring, 1928	GBIF	genus	Animalia : Mollusca : Gastropoda : Trochida : Colloniidae : *Homalapoma*
Leptonyx Carpenter, 1864	GBIF	genus	Animalia : Mollusca : Gastropoda : Trochida : Colloniidae : *Leptonyx*

Synonymy List

Year	Name and Author
1864	Homalopoma Carpenter
1938	Homalopoma Turner p. 95
1944	Homalopoma Durham p. 155
1960	Homalopoma Keen p. 270
1960	Homalopoma MacNeil p. 29
1966	Homalopoma Fleming
1982	Homalopoma Ladd p. 23
1984	Homalopoma Kase p. 79

Year	Name and Author
1988	Homalopoma Squires p. 10
1995	Homalopoma Pacaud and Le Renard p. 153
2001	Homalopoma Lozouet et al. p. 19
2001	Homalopoma Todd
2002	Homalopoma Sepkoski, Jr.
2005	Homalopoma Bouchet et al. pp. 89, 245
2006	Homalopoma Kiel p. 124
2008	Homalopoma Squires p. 9

References

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

Turner F. E. (1938) Stratigraphy and Mollusca of the Eocene of western Oregon, Geological Society of America Special Paper 10, 1-130

Durham J. W. (1944) Megafaunal zones of the Oligocene of northwestern Washington, University of California Publications in Geological Sciences 27, 101 -212

MacNeil F. S. (1960) Tertiary and Quaternary Gastropoda of Okinawa: A comparison of the late Miocene, Pliocene, and Pleistocene Gastropoda of Okinawa with related faunas of East Asia together with a resume of the geological setting of the fossiliferous deposits, United States Geological Survey Professional Paper 339, 1-148

Ladd H. S. (1982) Cenozoic fossil mollusks from Western Pacific Islands; Gastropods (Volutidae through Terebridae), United States Geological Survey Professional Paper 1171, 1-100

Kase T. (1984) , Early Cretaceous marine and brackish-water Gastropoda from Japan, 1-262

Squires R. L. (1988) Eocene Macropaleontology of Northern Lockwood Valley, Ventura County, California, Contributions in Science (Natural History Museum of Los Angeles County) 398, 1-23

Pacaud J.-M., Le Renard J. (1995) Révision des Mollusques Paléogénes du Bassin de Paris. IV - Liste systématique actualisée, Cossmanniana 3 4, 155-187

Lozouet P., Lesport J.-F., et al (2001) Révision des Gastropoda (Mollusca) du stratotype de L'Aquitanien (Miocéne inf.) site de Saucats "Lariey", Gironde, France, Cossmanniana 8, 1-189

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

Bouchet P., Rocroi J.-P, et al (2005) A nomenclator and classification of gastropod family-group names, Malacologia 47 1-2, 1-368

Kiel S. (2006) New records and species of molluscs from Tertiary cold-seep carbonates in Washington State, USA, Journal of Paleontology 80 1, 121-137 doi:10.1666/0022-3360%282006%29080%5B0121%3ANRASOM%5D2.0.CO%3B2

Squires R. L. (2008) Eocene megapaleontology, stratigraphy, and depositional environments, Elsmere Canyon, Los Angeles County, California, Contributions in Science 517, 1-16

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)

Aphia2006 - via The Interim Register of Marine and Nonmarine Genera

CoL2006 - 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

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

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

Rep. Brit. Ass., 33, 1863, 537, 588 - via The Interim Register of Marine and Nonmarine Genera

Kaim, A.; Jenkins, R. G.; Hikida, Y. (2009). Gastropods from Late Cretaceous Omagari and Yasukawa hydrocarbon seep deposits in the Nakagawa area, Hokkaido, Japan. Acta Palaeontologica Polonica. 54(3): 463-490. - via World Register of Marine Species

Marshall, B. A. (1979). The Trochidae and Turbinidae of the Kermadec Ridge (Mollusca: Gastropoda). New Zealand Journal of Zoology. 6: 521-552. - via World Register of Marine Species

Huang S.-I, Fu I-F. & Poppe G.T. (2016). Taiwanese and Philippine Colloniidae. Nomenclatural remarks and the description of 17 new species (Gastropoda: Colloniidae). Visaya. 4(5): 4-42. - via World Register of Marine Species

Williams S.T., Karube S. & Ozawa T. (2008) Molecular systematics of Vetigastropoda: Trochidae, Turbinidae and Trochoidea redefined. Zoologica Scripta 37: 483–506. - 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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