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Pseudagnostus ✝

Photos

Photo Gallery

Source Data

Source	ID	Link
Global Biodiversity Information Facility ID (GBIF)	Not linked to a GBIF record.
PaleoBioDB ID (PBDB)	19302	https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=19302

Rank

genus (PBDB)

Taxonomy (PBDB)

Life : Animalia : Arthropoda : Trilobita : Agnostida : Diplagnostidae : Pseudagnostus

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
superfamily	Agnostoidea	M'Coy 1849
family	Diplagnostidae	Whitehouse 1936
genus	Pseudagnostus	Jaekel 1909

Opinions (PBDB)

Name	Rank	Opinion	Evidence	Author
Pseudagnostus	genus	belongs to Pseudagnostidae	stated without evidence	Robison and Pantoja-Alor, 1968
Pseudagnostus	genus	belongs to Diplagnostidae	stated with evidence	Whittington et al., 1997
Pseudagnostus	genus	belongs to Agnostida	second hand	Sepkoski, 2002

Status (PBDB)

extinct

Taxon Size (PBDB)

First Recorded Appearance

513 - 501 Ma
Cambrian

Last Recorded Appearance

485 - 478 Ma
Paleozoic

Environment

marine (based on Trilobita)

Motility

slow-moving (based on Agnostida)

Vision

blind (based on Diplagnostidae)

Diet

detritivore (based on Agnostida)

Ontogeny

molting,addition of parts (based on Trilobita)

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	Fossil Occurrences	Oldest	Youngest
Pseudagnostus (Pseudagnostina) ✝ subgenus	listed (PBDB)	52	513 Ma Cambrian	497 Ma Cambrian
Pseudagnostus (Sulcatagnostus) ✝ subgenus	listed (PBDB)	23	505 Ma Cambrian	499 Ma Cambrian
Pseudagnostus ampullatus ✝ species	accepted (GBIF) listed (PBDB)	8	501 Ma Cambrian	501 Ma Cambrian
Pseudagnostus anhuiensis ✝ species	accepted (GBIF) listed (PBDB)	4	499 Ma Cambrian	499 Ma Cambrian
Pseudagnostus benxiensis ✝ species	accepted (GBIF) listed (PBDB)	1	501 Ma Cambrian	501 Ma Cambrian
Pseudagnostus bulgosus ✝ species	accepted (GBIF) listed (PBDB)	3	505 Ma Cambrian	501 Ma Cambrian
Pseudagnostus chinensis ✝ species	accepted (GBIF) listed (PBDB)	11	501 Ma Cambrian	501 Ma Cambrian
Pseudagnostus communis ✝ species	accepted (GBIF) listed (PBDB)	43	501 Ma Cambrian	499 Ma Cambrian
Pseudagnostus cyclopyge ✝ species	accepted (GBIF) listed (PBDB)	10	501 Ma Cambrian	497 Ma Cambrian
Pseudagnostus dividuus ✝ species	accepted (GBIF) listed (PBDB)	8	499 Ma Cambrian	499 Ma Cambrian
Pseudagnostus idalis ✝ species	accepted (GBIF) listed (PBDB)	33	501 Ma Cambrian	501 Ma Cambrian
Pseudagnostus josephus ✝ species	accepted (GBIF) listed (PBDB)	116	501 Ma Cambrian	497 Ma Cambrian
Pseudagnostus karatauensis ✝ species	accepted (GBIF) listed (PBDB)	2	501 Ma Cambrian	501 Ma Cambrian
Pseudagnostus koerferi ✝ species	accepted (GBIF) listed (PBDB)	6	501 Ma Cambrian	501 Ma Cambrian
Pseudagnostus leptoplastorum ✝ species	accepted (GBIF) listed (PBDB)	5	501 Ma Cambrian	501 Ma Cambrian
Pseudagnostus marginisulcatus ✝ species	accepted (GBIF) listed (PBDB)	2	501 Ma Cambrian	501 Ma Cambrian
Pseudagnostus medius ✝ species	accepted (GBIF) listed (PBDB)	2	501 Ma Cambrian	499 Ma Cambrian
Pseudagnostus mestus ✝ species	accepted (GBIF) listed (PBDB)	1	501 Ma Cambrian	501 Ma Cambrian
Pseudagnostus obsurdus ✝ species	accepted (GBIF) listed (PBDB)	3	499 Ma Cambrian	499 Ma Cambrian
Pseudagnostus papilio ✝ species	listed (PBDB)	3	501 Ma Cambrian	501 Ma Cambrian
Pseudagnostus praecurrens ✝ species	accepted (GBIF) listed (PBDB)	3	499 Ma Cambrian	499 Ma Cambrian
Pseudagnostus primus ✝ species	accepted (GBIF) listed (PBDB)	4	505 Ma Cambrian	499 Ma Cambrian
Pseudagnostus prolongus ✝ species	accepted (GBIF) listed (PBDB)	4	501 Ma Cambrian	501 Ma Cambrian
Pseudagnostus pseudangustilobus ✝ species	accepted (GBIF) listed (PBDB)	13	499 Ma Cambrian	499 Ma Cambrian
Pseudagnostus pseudocyclopyge ✝ species	accepted (GBIF) listed (PBDB)	21	501 Ma Cambrian	499 Ma Cambrian
Pseudagnostus punctatus ✝ species	accepted (GBIF) listed (PBDB)	8	499 Ma Cambrian	499 Ma Cambrian
Pseudagnostus rajovopsis ✝ species	accepted (GBIF) listed (PBDB)	3	501 Ma Cambrian	499 Ma Cambrian
Pseudagnostus securiger ✝ species	accepted (GBIF) listed (PBDB)	8	501 Ma Cambrian	499 Ma Cambrian
Pseudagnostus sericatus ✝ species	accepted (GBIF) listed (PBDB)	3	501 Ma Cambrian	501 Ma Cambrian
Pseudagnostus subquadratus ✝ species	accepted (GBIF) listed (PBDB)	1	501 Ma Cambrian	501 Ma Cambrian
Pseudagnostus vastulus ✝ species	accepted (GBIF) listed (PBDB)	15	501 Ma Cambrian	499 Ma Cambrian

Synonymy List

Year	Name and Author
1909	Pseudagnostus Jaekel
1968	Pseudagnostus Robison and Pantoja-Alor p. 780
1997	Pseudagnostus Whittington et al. p. 366
2002	Pseudagnostus Sepkoski, Jr.

References

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

Robison R. A., Pantoja-Alor J. (1968) Tremadocian trilobites from the Nochixtlan Region, Oaxaca, Mexico, Journal of Paleontology 42 3, 767-800

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

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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