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Scaphopoda

Photos

Photo Gallery

Dentalium sp.

Lake Nacogdoches spillway, Nacogdoches County, Texas, USA

Dentalium sp.

Lake Nacogdoches spillway, Nacogdoches County, Texas, USA

Dentalium sp.

Lake Nacogdoches spillway, Nacogdoches County, Texas, USA

Source Data

Source	ID	Link
Global Biodiversity Information Facility ID (GBIF)	Not linked to a GBIF record.
PaleoBioDB ID (PBDB)	8166	https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=8166

Rank

class (PBDB)

Taxonomy (PBDB)

Life : Animalia : Mollusca : Scaphopoda

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	Scaphopoda	Bronn 1862

Common Name

tusk shell

Opinions (PBDB)

Name	Rank	Opinion	Evidence	Author
Scaphopoda	class	belongs to Mollusca	stated with evidence	Stanton, 1895
Scaphopoda	class	belongs to Mollusca	stated without evidence	Squires, 1984
Scaphopoda	class	belongs to Mollusca	stated with evidence	Ward and Blackwelder, 1987
Scaphopoda	class	belongs to Mollusca	stated without evidence	Squires, 1987
Scaphopoda	class	belongs to Mollusca	implied	Wells and Houston, 2001
Scaphopoda	class	belongs to Mollusca	second hand	Sepkoski, 2002
Scaphopoda	class	belongs to Mollusca	stated without evidence	Giribet et al., 2006

Status (PBDB)

extant

Taxon Size (PBDB)

248

Extant Size (PBDB)

92 (37%)

First Recorded Appearance

461 - 450 Ma
Ordovician

Motility

slow-moving (based on Scaphopoda)

Vision

blind (based on Scaphopoda)

Diet

deposit feeder (based on Scaphopoda)

Ecospace Comments

ECOSPACE: 523. LIFE HISTORY: Predator, mainly Foraminifera, but also other micro-prey, according to Kiel & Goedert (2006); shallow infaunal, slow, miner according to Bambach et al. (2007).

Taphonomy

aragonite (based on Scaphopoda)

Primary Reference (PBDB)

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

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Subtaxa

Name	Status	Fossil Occurrences	Oldest	Youngest
Dentaliida order	accepted (GBIF) listed (PBDB)	2,549	461 Ma Middle Ordovician	0 Ma Extant
Dentalioida order	listed (PBDB)			0 Ma Extant
Dentaloidea order	listed (PBDB)
Gadilida order	accepted (GBIF) listed (PBDB)	613	290 Ma Permian	0 Ma Extant
Solenoconchia order	listed (PBDB)
Entalis genus	listed (PBDB)	26	336 Ma Carboniferous	0 Ma Extant
Throopella ✝ genus	doubtful (GBIF) listed (PBDB)

Synonymy List

Year	Name and Author
1862	Scaphopoda Bronn
1895	Scaphopoda Stanton
1984	Scaphopoda Squires p. 15
1987	Scaphopoda Squires p. 20
1987	Scaphopoda Ward and Blackwelder p. 131
1988	Scaphopoda Squires p. 7
2001	Scaphopoda Wells and Houston p. 85
2002	Scaphopoda Sepkoski, Jr.
2006	Scaphopoda Giribet et al. p. 7724

References

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

Stanton T. W. Contributions to the Cretaceous paleontology of the Pacific coast. : The fauna of the Knoxville, Bulletin of the United States Geological Survey 133, 1-132 doi:10.3133/b133

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

Ward L. W., Blackwelder B.W. (1987) Late Pliocene and Early Pleistocene Mollusca from the James City and Chowan River Formations at Lee Creek Mine, Smithsonian Contributions to Paleobiology 61, 113-283

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

Wells A., Houston W. W. K. (2001) , Zoological Catalogue of Australia: Mollusca 17 2

Giribet G., Okusu A., et al (2006) Evidence for a clade composed of molluscs with serially repeated structures: monoplacophorans are related to chitons, Proceedings of the National Academy of Sciences 103 20, 7723-7728

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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