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Dicroloma ✝

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Source Data

Source	ID	Link
Global Biodiversity Information Facility ID (GBIF)	4609676	https://www.gbif.org/species/4609676
PaleoBioDB ID (PBDB)	9758	https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=9758

Rank

genus

Taxonomy (GBIF)

Life : Animalia : Mollusca : Gastropoda : Littorinimorpha : Aporrhaidae : Dicroloma

Taxonomy (PBDB)

Life : Animalia : Mollusca : Gastropoda : Aporrhaidae : Dicroloma

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
superorder	Hypsogastropoda
infraorder	Littorinimorpha	Golikov and Starobogtov 1975
superfamily	Stromboidea	(Rafinesque 1815)
family	Aporrhaidae	Gray 1850
subfamily	Aporrhainae	Gray 1850
genus	Dicroloma	Gabb 1868

Scientific Name

Dicroloma Gabb, 1868

Name Published In

Gabb W.M. (1868) An attempt at the revision of the two families Strombidae and Aporrhaidae. American Journal of Conchology 4(3): 137-149. [3 November 1868]

Opinions (PBDB)

Name	Rank	Opinion	Evidence	Author
Dicroloma	subgenus	belongs to Pterocera	implied	Bengtson, 1983
Dicroloma	genus	belongs to Neotaenioglossa	second hand	Sepkoski, 2002
Dicroloma	genus	belongs to Aporrhaidae	stated without evidence	Kaim, 2004
Dicroloma	genus	belongs to Aporrhainae	stated with evidence	Kollmann, 2009

Status (PBDB)

extinct

Taxon Size (PBDB)

First Recorded Appearance

201 - 197 Ma
Early Jurassic

Last Recorded Appearance

37.2 - 33.9 Ma
Paleogene

Motility

slow-moving (based on Aporrhaidae)

Vision

limited (based on Gastropoda)

Diet

detritivore (based on Aporrhaidae)

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

Fossil Distribution

Subtaxa

Name	Status	Common Name(s)	Fossil Occurrences	Oldest	Youngest
Alaria armata species	accepted (GBIF)	No associated record in PBDB
Alaria bispinosa species	accepted (GBIF)	No associated record in PBDB
Alaria dumortieri species	accepted (GBIF)	No associated record in PBDB
Alaria eudesii species	accepted (GBIF)	No associated record in PBDB
Alaria granulosa ✝ species	listed (PBDB)		1	170 Ma Middle Jurassic	170 Ma Middle Jurassic
Alaria jacobi ✝ species	accepted (GBIF) listed (PBDB)		1	157 Ma Jurassic	157 Ma Jurassic
Alaria nodosa ✝ species	accepted (GBIF) listed (PBDB)		7	93.9 Ma Late/Upper Cretaceous	93.9 Ma Late/Upper Cretaceous
Alaria tumida ✝ species	accepted (GBIF) listed (PBDB)		1	168 Ma Middle Jurassic	168 Ma Middle Jurassic
Dicroloma armata ✝ species	listed (PBDB)		1	168 Ma Middle Jurassic	168 Ma Middle Jurassic
Dicroloma dumortieri ✝ species	listed (PBDB)
Dicroloma eudesii ✝ species	listed (PBDB)
Dicroloma zelandica ✝ species	listed (PBDB)		1	37.2 Ma Eocene	37.2 Ma Eocene
Pterocera (Alaria) rochatiana ✝ species	listed (PBDB)		1	125 Ma Early/Lower Cretaceous	125 Ma Early/Lower Cretaceous
Pterocera granulosa species	accepted (GBIF)	No associated record in PBDB
Pterocera rochatiana species	accepted (GBIF)	No associated record in PBDB

Obsolete Names

Name	Source	Taxon Rank	Taxonomy
Pterophorus Piette, 1891	GBIF	genus	Animalia : Mollusca : Gastropoda : Littorinimorpha : Aporrhaidae : *Pterophorus*
Alaria Morris & Lycett, 1851	GBIF	genus	Animalia : Mollusca : Gastropoda : Littorinimorpha : Aporrhaidae : *Alaria*

Synonymy List

Year	Name and Author
1851	Alaria Morris and Lycett
1868	Dicroloma Gabb
1922	Alaria Packard p. 430
1940	Pterocera (Alaria) Noszky
1983	Pterocera (Dicroloma) Bengtson
1990	Alaria Etter p. 23
2002	Dicroloma Sepkoski, Jr.
2004	Dicroloma Kaim p. 71
2009	Dicroloma Kollmann p. 51

References

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

Packard E. L. (1922) New species from the Cretaceous of the Santa Ana Mountains, California, University of California Publications, Bulletin of the Department of Geological Sciences 13 10, 413-462

Bengtson P. (1983) The Cenomanian-Coniacian of Sergipe Basin, Brazil, Fossil and Strata 12, 1-78

Etter W. (1990) Paläontologische Untersuchungen im unteren Opalinuston der Nordschweiz, 151pp.

Kaim A. (2004) The evolution of conch ontogeny in Mesozoic open sea gastropods, Palaeontologia Polonica 62, 183pp.

Kollmann H. A. (2009) A Late Cretaceous Aporrhaidae-dominated gastropod assemblage from the Gosau Group of the Pletzach Alm near Kramsach (Tyrol, Austria). With an appendix on the taxonomy of Mesozoic Aporrhaidae and their position in the superfamily Stromboidea, Annalen des Naturhistorischen Museums in Wien. Serie A für Mineralogie und Petrographie, Geologie und Paläontologie, Anthropologie und Prähistorie 111 A, 33-71

Amer. J. Conch., 4 - via The Interim Register of Marine and Nonmarine Genera

Museum Victoria KEmu database (Oct 2006) - 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

Gabb W.M. (1868) An attempt at the revision of the two families Strombidae and Aporrhaidae. American Journal of Conchology 4(3): 137-149. [3 November 1868] - 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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