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Clavagnostus ✝

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Source Data

Source	ID	Link
Global Biodiversity Information Facility ID (GBIF)	4639200	https://www.gbif.org/species/4639200
PaleoBioDB ID (PBDB)	19198	https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=19198

Rank

genus

Taxonomy (GBIF,PBDB)

Life : Animalia : Arthropoda : Trilobita : Agnostida : Clavagnostidae : Clavagnostus

Taxonomic Status (GBIF)

accepted

Classification
(PBDB,GBIF)

Rank	Name	Author
-	Eukaryota
-	Opisthokonta	Cavalier-Smith 1987
kingdom	Animalia
-	Bilateria
-	Eubilateria	Ax 1987
-	Protostomia	Grobben 1908
-	Ecdysozoa
-	Panarthropoda
phylum	Arthropoda	Latreille 1829
subphylum	Mandibulata
class	Trilobita	Walch 1771
order	Agnostida	Salter 1864
family	Clavagnostidae	Howell 1937
genus	Clavagnostus	Howell 1937

Scientific Name

Clavagnostus Howell, 1937

Name Published In

Bull. Geol. Soc. Amer., 48,

Opinions (PBDB)

Name	Rank	Opinion	Evidence	Author
Clavagnostus	genus	belongs to Clavagnostidae	stated with evidence	Whittington et al., 1997
Clavagnostus	genus	belongs to Agnostida	second hand	Sepkoski, 2002
Clavagnostus	genus	belongs to Clavagnostidae	stated without evidence	Jell and Adrain, 2002

Status (PBDB)

extinct

Taxon Size (PBDB)

First Recorded Appearance

513 - 501 Ma
Cambrian

Last Recorded Appearance

501 - 497 Ma
Cambrian

Environment

marine (based on Trilobita)

Motility

slow-moving (based on Agnostida)

Vision

blind (based on Clavagnostidae)

Diet

detritivore (based on Agnostida)

Ontogeny

molting,addition of parts (based on Trilobita)

Ecospace Comments

BODY SIZE: Data from Williams et al. (2002).

Taphonomy

low Mg calcite, chitin (based on Trilobita)

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
Clavagnostus (Leptagnostus) ✝ subgenus	listed (PBDB)		1	501 Ma Cambrian	501 Ma Cambrian
Clavagnostus (Paraclavagnostus) ✝ subgenus	listed (PBDB)		3	501 Ma Cambrian	501 Ma Cambrian
Clavagnostus aequalis species	accepted (GBIF)	No associated record in PBDB
Clavagnostus burnsi ✝ species	accepted (GBIF) listed (PBDB)		2	504 Ma Cambrian	501 Ma Cambrian
Clavagnostus calensis ✝ species	accepted (GBIF) listed (PBDB)		9	513 Ma Cambrian	505 Ma Cambrian
Clavagnostus cuneatus ✝ species	accepted (GBIF) listed (PBDB)		1	505 Ma Cambrian	505 Ma Cambrian
Clavagnostus repandus ✝ species	accepted (GBIF) listed (PBDB)		27	513 Ma Cambrian	501 Ma Cambrian
Clavagnostus spinosus ✝ species	accepted (GBIF) listed (PBDB)		10	505 Ma Cambrian	501 Ma Cambrian
Clavagnostus subconicus ✝ species	accepted (GBIF) listed (PBDB)		1	501 Ma Cambrian	501 Ma Cambrian
Clavagnostus taoyuanensis ✝ species	accepted (GBIF) listed (PBDB)		1	505 Ma Cambrian	505 Ma Cambrian
Clavagnostus trispinus ✝ species	accepted (GBIF) listed (PBDB)		15	513 Ma Cambrian	501 Ma Cambrian
Clavagnostus variatus species	accepted (GBIF)	No associated record in PBDB

Obsolete Names

Name	Source	Taxon Rank	Taxonomy
Paraclavagnostus Yang & Liu, 1991	GBIF	genus	Animalia : Arthropoda : Trilobita : Agnostida : Clavagnostidae : *Paraclavagnostus*

Synonymy List

Year	Name and Author
1937	Clavagnostus Howell
1938	Tomorhachis Resser
1982	Acanthagnostus Qian
1997	Clavagnostus Whittington et al. p. 371
2002	Clavagnostus Jell and Adrain p. 358
2002	Clavagnostus Sepkoski, Jr.

References

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

Qian Y. Y. (1982) Ontogeny of Pseudagnostus benxiensis sp. nov. (Trilobita), Acta Palaeontologica Sinica 21, 632-643

Whittington H. B., Chatterton B. D. E., et al (1997) Trilobita. Introduction, Order Agnostina, Order Redlichiida. Volume 1, Treatise on Invertebrate Paleontology O, 1-530

Jell P. A., Adrain J. M. (2002) Available generic names for trilobites, Memoirs of the Queensland Museum 48 2, 331-553

Bull. Geol. Soc. Amer., 48, - 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

extinct group - via The Interim Register of Marine and Nonmarine Genera

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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