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Homalonotidae β
Source Data |
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Rank | family (PBDB) | |||||||||||||||||||||||||||||||||||||||||||||
Taxonomy (PBDB) | Life : Animalia : Arthropoda : Trilobita : Phacopida : Homalonotidae | |||||||||||||||||||||||||||||||||||||||||||||
Classification (PBDB,GBIF) |
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Opinions (PBDB) |
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Status (PBDB) | extinct | |||||||||||||||||||||||||||||||||||||||||||||
Taxon Size (PBDB) | 55 | |||||||||||||||||||||||||||||||||||||||||||||
First Recorded Appearance | 485 - 478 Ma Paleozoic | |||||||||||||||||||||||||||||||||||||||||||||
Last Recorded Appearance | 383 - 372 Ma Late/Upper Devonian | |||||||||||||||||||||||||||||||||||||||||||||
Environment | marine (based on Trilobita) | |||||||||||||||||||||||||||||||||||||||||||||
Motility | fast-moving (based on Trilobita) | |||||||||||||||||||||||||||||||||||||||||||||
Vision | well-developed (based on Homalonotidae) | |||||||||||||||||||||||||||||||||||||||||||||
Diet | carnivore (based on Trilobita) | |||||||||||||||||||||||||||||||||||||||||||||
Ontogeny | molting,addition of parts (based on Trilobita) | |||||||||||||||||||||||||||||||||||||||||||||
Ecospace Comments | BODY SIZE: Based on component genera; 3 of 3 genera share 10 to < 100 width, inconsistent length. | |||||||||||||||||||||||||||||||||||||||||||||
Taphonomy | low Mg calcite, chitin (based on Trilobita) | |||||||||||||||||||||||||||||||||||||||||||||
Primary Reference (PBDB) | P. A. Jell and J. M. Adrain. 2002. Available generic names for trilobites. Memoirs of the Queensland Museum 48(2):331-553 |
Fossil Distribution
Subtaxa
Name | Status | Common Name(s) | Fossil Occurrences | Oldest | Youngest |
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Colpocoryphinae β subfamily | listed (PBDB) | 123 | 485 Ma Cambrian | 453 Ma Late/Upper Ordovician | |
Eohomalonotinae β subfamily | listed (PBDB) | 65 | 485 Ma Cambrian | 439 Ma Silurian | |
Homalonotinae β family | accepted (GBIF) listed (PBDB) | 188 | 485 Ma Cambrian | 383 Ma Late/Upper Devonian | |
Kerfornellinae β subfamily | listed (PBDB) | 4 | 467 Ma Middle Ordovician | 461 Ma Middle Ordovician | |
Arduennella β genus | doubtful (GBIF) listed (PBDB) | ||||
Burmeisterella β genus | doubtful (GBIF) listed (PBDB) | 1 | 409 Ma Early/Lower Devonian | 409 Ma Early/Lower Devonian | |
Burmeisteria β genus | listed (PBDB) | 55 | 433 Ma Silurian | 393 Ma Early/Lower Devonian | |
Digonus β genus | doubtful (GBIF) listed (PBDB) | 11 | 419 Ma Early/Lower Devonian | 411 Ma Early/Lower Devonian | |
Dipleura β genus | doubtful (GBIF) listed (PBDB) | 62 | 461 Ma Middle Ordovician | 388 Ma Middle Devonian | |
Homalonotus β genus | listed (PBDB) | 54 | 466 Ma Middle Ordovician | 388 Ma Middle Devonian | |
Iberocoryphe β genus | accepted (GBIF) listed (PBDB) | 17 | 470 Ma Middle Ordovician | 453 Ma Late/Upper Ordovician | |
Kerfornella β genus | accepted (GBIF) listed (PBDB) | 16 | 470 Ma Middle Ordovician | 461 Ma Middle Ordovician | |
Leiostegina β genus | doubtful (GBIF) listed (PBDB) | 2 | 461 Ma Middle Ordovician | 461 Ma Middle Ordovician | |
Parahomalonotus β genus | accepted (GBIF) listed (PBDB) | 16 | 419 Ma Early/Lower Devonian | 403 Ma Early/Lower Devonian |
Synonymy List
Year | Name and Author |
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1890 | Homalonotidae Chapman |
1957 | Homalonotidae Harrington and Leanza |
1997 | Homalonotidae Whittington et al. p. 300 |
2002 | Homalonotidae Jell and Adrain p. 472 |
2011 | Homalonotidae Adrain p. 106 |
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!
Patacamaya, Patacamaya Municipality, Aroma Province, La Paz, Bolivia