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Pseudagnostidae ✝
| Source Data |
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| Rank | family | |||||||||||||||||||||||||||||||||||||||||||||
| Taxonomy (GBIF,PBDB) | Life : Animalia : Arthropoda : Trilobita : Agnostida : Pseudagnostidae | |||||||||||||||||||||||||||||||||||||||||||||
| Taxonomic Status (GBIF) | accepted | |||||||||||||||||||||||||||||||||||||||||||||
| Classification (PBDB,GBIF) |
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| Scientific Name | Pseudagnostidae | |||||||||||||||||||||||||||||||||||||||||||||
| Opinions (PBDB) |
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| Status (PBDB) | extinct | |||||||||||||||||||||||||||||||||||||||||||||
| Taxon Size (PBDB) | 26 | |||||||||||||||||||||||||||||||||||||||||||||
| First Recorded Appearance | 501 - 499 Ma Cambrian | |||||||||||||||||||||||||||||||||||||||||||||
| Last Recorded Appearance | 499 - 485 Ma Cambrian | |||||||||||||||||||||||||||||||||||||||||||||
| Environment | marine (based on Trilobita) | |||||||||||||||||||||||||||||||||||||||||||||
| Motility | slow-moving (based on Agnostida) | |||||||||||||||||||||||||||||||||||||||||||||
| Diet | detritivore (based on Agnostida) | |||||||||||||||||||||||||||||||||||||||||||||
| Ontogeny | molting,addition of parts (based on Trilobita) | |||||||||||||||||||||||||||||||||||||||||||||
| Ecospace Comments | BODY SIZE: Based on component genera; 3 of 3 genera share 1 to < 10 length, 3 of 3 share 1 to < 10 width. | |||||||||||||||||||||||||||||||||||||||||||||
| Taphonomy | low Mg calcite, chitin (based on Trilobita) | |||||||||||||||||||||||||||||||||||||||||||||
| Primary Reference (PBDB) | S. R. Westrop, R. Ludvigsen, and C. H. Kindle. 1996. Marjuman (Cambrian) agnostoid trilobites of the Cow Head Group, western Newfoundland. Journal of Paleontology 70(5):804-829 |
Fossil Distribution
Subtaxa
| Name | Status | Common Name(s) | Fossil Occurrences | Oldest | Youngest |
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| Asqaragnostus ✝ genus | accepted (GBIF) listed (PBDB) | 2 | 501 Ma Cambrian | 501 Ma Cambrian | |
| Norilagnostus ✝ genus | listed (PBDB) | 4 | 499 Ma Cambrian | 499 Ma Cambrian | |
| Rhaptagnostus ✝ genus | accepted (GBIF) listed (PBDB) | 174 | 501 Ma Cambrian | 499 Ma Cambrian | |
| Trisulcagnostus ✝ genus | accepted (GBIF) listed (PBDB) | 6 | 499 Ma Cambrian | 499 Ma Cambrian | |
| Yongwolagnostus ✝ genus | accepted (GBIF) listed (PBDB) | 14 | 501 Ma Cambrian | 499 Ma Cambrian |
Synonymy List
| Year | Name and Author |
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| 1936 | Pseudagnostidae Whitehouse |
| 1957 | Pseudagnostinae Harrington and Leanza |
| 1968 | Pseudagnostidae Robison and Pantoja-Alor p. 780 |
| 1996 | Pseudagnostidae Westrop et al. pp. 812, 820 |
References
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!
