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Retusa (Cylichnina)

Source Data
SourceIDLink
Global Biodiversity Information Facility ID (GBIF)Not linked to a GBIF record.
PaleoBioDB ID (PBDB)97356https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=97356
Ranksubgenus (PBDB)
Taxonomy (PBDB)Life : Animalia : Mollusca : Gastropoda : Cephalaspidea : Retusidae : Retusa : Retusa (Cylichnina)
Classification
(PBDB,GBIF)
RankNameAuthor
-Eukaryota
-OpisthokontaCavalier-Smith 1987
kingdomAnimalia
-Bilateria
-EubilateriaAx 1987
-ProtostomiaGrobben 1908
-Spiralia
superphylumLophotrochozoa
phylumMolluscaLinnaeus 1758
classGastropodaCuvier 1797
orderOpisthobranchia
orderCephalaspideaFischer 1883
superfamilyPhilinoideaGray 1850
familyRetusidaeThiele 1925
genusRetusaBrown 1827
subgenusRetusa (Cylichnina)(Monterasato 1884)
Opinions (PBDB)
NameRankOpinionEvidenceAuthor
Retusa (Cylichnina)subgenusbelongs to Retusastated without evidenceMartin, 1904
Retusa (Cylichnina)genusbelongs to Scaphanderidaestated without evidenceTurner, 1938
Retusa (Cylichnina)subgenusbelongs to RetusaimpliedGlibert, 1962
Retusa (Cylichnina)subgenusbelongs to Retusastated without evidencePalmer and Brann, 1966
Retusa (Cylichnina)genusbelongs to Cylichnidaestated without evidenceSquires, 1984
Retusa (Cylichnina)genusbelongs to Retusidaestated with evidenceTodd, 2001
Retusa (Cylichnina)genusbelongs to Cephalaspidasecond handSepkoski, 2002
Retusa (Cylichnina)genusbelongs to Retusidaestated with evidenceHarzhauser and Kowalke, 2002
Retusa (Cylichnina)subgenusbelongs to Retusastated with evidenceMandic and Steininger, 2003
Status (PBDB)extant
Taxon Size (PBDB)8
Extant Size (PBDB)1 (13%)
First Recorded Appearance101 - 94 Ma
Late/Upper Cretaceous
Motilityactively mobile (based on Retusidae)
Visionlimited (based on Gastropoda)
Dietcarnivore (based on Retusidae)
Taphonomyaragonite (based on Gastropoda)
Primary Reference (PBDB)G. C. Martin. 1904. Gastropoda. Maryland Geological Survey Miocene(Text):131-269

Fossil Distribution

Subtaxa

NameStatusCommon Name(s)Fossil OccurrencesOldestYoungest
Cylichnina coelata ✝
species		listed (PBDB)333.9 Ma
Oligocene		33.9 Ma
Oligocene
Cylichnina turneri ✝
species		listed (PBDB)438.0 Ma
Eocene		38.0 Ma
Eocene
Retusa (Cylichnina) aequiattenuata ✝
species		listed (PBDB)141.3 Ma
Eocene		41.3 Ma
Eocene
Retusa (Cylichnina) conutus
species		listed (PBDB)
Retusa (Cylichnina) galba ✝
species		listed (PBDB)1661.6 Ma
Paleocene		37.2 Ma
Eocene
Retusa (Cylichnina) marylandica
species		listed (PBDB)223.0 Ma
Miocene		11.6 Ma
Miocene
Retusa (Cylichnina) subspissa
species		listed (PBDB)

Synonymy List

YearName and Author
1884Cylichnina Monterasato
1904Retusa (Cylichnina) Martin p. 135
1938Cylichnina Turner p. 67
1944Cylichnina Durham p. 190
1962Retusa (Cylichnina) Glibert p. 57
1966Retusa (Cylichnina) Palmer and Brann p. 878
1984Cylichnina Squires p. 39
1987Cylichnina Squires p. 53
YearName and Author
1988Cylichnina Squires p. 17
1992Cylichnina Squires and Demetrion p. 34
1999Cylichnina Squires p. 22
2001Cylichnina Todd
2002Cylichnina Harzhauser and Kowalke p. 74
2002Cylichnina Sepkoski, Jr.
2003Retusa (Cylichnina) Mandic and Steininger p. 274

References

Martin G. C. (1904) Gastropoda, Maryland Geological Survey Miocene Text, 131-269
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
Palmer K. V., Brann D. C. (1966) Catalogue of the Paleocene and Eocene Mollusks of the Southern and Eastern United States Part II. Gastropoda, Bulletins of American Paleontology 48, 471-1057
Squires R. L. (1984) Megapaleontology of the Eocene Llajas Formation, Simi Valley, California, Contributions in Science, Natural History Museum of Los Angeles County 350, 1-76
Squires R. L. (1987) Eocene molluscan paleontology of the Whitaker Peak area, Los Angeles and Ventura counties, California, Contributions in Science, Natural History Museum of Los Angeles County 388, 1-93
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
Squires R. L., Demetrion R. A. (1992) Paleontology of the Eocene Bateque Formation, Baja California Sur, Mexico, Contributions in Science (Natural History Museum of Los Angeles County) 434, 1-55
Todd J. A. (2001) Systematic list of gastropods in the Panama Paleontology Project collections
Harzhauser M., Kowalke T. (2002) Sarmatian (Late Middle Miocene) Gastropod Assemblages of the Central Paratethys, Facies 46, 57-82
Sepkoski, Jr. J. J. (2002) A compendium of fossil marine animal genera, Bulletins of American Paleontology 363, 1-560
Mandic O., Steininger F. F. (2003) Computer-based mollusc stratigraphy - a case study from the Eggenburgian (Lower Miocene) type region (NE Austria), Palaeogeography, Palaeoclimatology, Palaeoecology 197, 263-291
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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