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Olenellidae β
| Description | Olenellidae is an extinct family of redlichiid trilobite arthropods. Olenellids lived during the late Lower Cambrian (Botomian/Toyonian) in the so-called Olenellus-zone in the former paleocontinent of Laurentia plus parts of what became the Famatinian orogen in what is now Argentina. This family can be distinguished from most other Olenellina by the partial merger of the frontal (L3) and middle pair (L2) of lateral lobes of the central area of the cephalon, that is called glabella, creating two isolated slits. From Wikipedia article at https://en.wikipedia.org/wiki/Olenellidae, which is released under the Creative Commons Attribution-Share-Alike License 3.0. | ||||||||||||||||||||||||||||||||||||||||||||||||
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| Source Data |
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| Rank | family | ||||||||||||||||||||||||||||||||||||||||||||||||
| Taxonomy (GBIF,PBDB) | Life : Animalia : Arthropoda : Trilobita : Redlichiida : Olenellidae | ||||||||||||||||||||||||||||||||||||||||||||||||
| Taxonomic Status (GBIF) | accepted | ||||||||||||||||||||||||||||||||||||||||||||||||
| Classification (PBDB,GBIF) |
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| Scientific Name | Olenellidae | ||||||||||||||||||||||||||||||||||||||||||||||||
| Opinions (PBDB) |
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| Status (PBDB) | extinct | ||||||||||||||||||||||||||||||||||||||||||||||||
| Taxon Size (PBDB) | 59 | ||||||||||||||||||||||||||||||||||||||||||||||||
| First Recorded Appearance | 541 - 516 Ma Cambrian | ||||||||||||||||||||||||||||||||||||||||||||||||
| Last Recorded Appearance | 513 - 501 Ma Cambrian | ||||||||||||||||||||||||||||||||||||||||||||||||
| Environment | marine (based on Trilobita) | ||||||||||||||||||||||||||||||||||||||||||||||||
| Motility | fast-moving (based on Redlichiida) | ||||||||||||||||||||||||||||||||||||||||||||||||
| Vision | well-developed | ||||||||||||||||||||||||||||||||||||||||||||||||
| Diet | deposit feeder (based on Redlichiida) | ||||||||||||||||||||||||||||||||||||||||||||||||
| Ontogeny | molting,addition of parts (based on Trilobita) | ||||||||||||||||||||||||||||||||||||||||||||||||
| Taphonomy | low Mg calcite, chitin (based on Trilobita) | ||||||||||||||||||||||||||||||||||||||||||||||||
| Primary Reference (PBDB) | C. D. Walcott. 1890. Descriptive notes of new genera and species from the Lower Cambrian or Olenellus zone of North America. Proceedings of the United States National Museum 12:33-46 | ||||||||||||||||||||||||||||||||||||||||||||||||
| Wikipedia | https://en.wikipedia.org/wiki/Olenellidae |
External Images
Fossil Distribution
Subtaxa
| Name | Status | Common Name(s) | Fossil Occurrences | Oldest | Youngest |
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| Gabriellinae β subfamily | listed (PBDB) | ||||
| Mesonacinae β subfamily | listed (PBDB) | 28 | 541 Ma Cambrian | 516 Ma Cambrian | |
| Olenellinae β subfamily | listed (PBDB) | 218 | 541 Ma Cambrian | 513 Ma Cambrian | |
| Arcuolenellus β genus | doubtful (GBIF) listed (PBDB) | 6 | 541 Ma Cambrian | 516 Ma Cambrian | |
| Biceratops β genus | accepted (GBIF) listed (PBDB) | 3 | 516 Ma Cambrian | 516 Ma Cambrian | |
| Bristolia β genus | accepted (GBIF) listed (PBDB) | 50 | 541 Ma Cambrian | 516 Ma Cambrian | |
| Fremontella β genus | accepted (GBIF) listed (PBDB) | 2 | 520 Ma Cambrian | 516 Ma Cambrian | |
| Fremontia genus | accepted (GBIF) | No associated record in PBDB | |||
| Fritzolenellus β genus | accepted (GBIF) listed (PBDB) | 16 | 516 Ma Cambrian | 513 Ma Cambrian | |
| Laudonia β genus | accepted (GBIF) listed (PBDB) | 9 | 541 Ma Cambrian | 516 Ma Cambrian | |
| Olenellus β genus | accepted (GBIF) listed (PBDB) | 218 | 541 Ma Cambrian | 513 Ma Cambrian | |
| Paedeumias β genus | accepted (GBIF) listed (PBDB) | 56 | 541 Ma Cambrian | 516 Ma Cambrian | |
| Peachella β genus | accepted (GBIF) listed (PBDB) | 15 | 541 Ma Cambrian | 516 Ma Cambrian | |
| Teresellus β genus | doubtful (GBIF) listed (PBDB) | 1 | 516 Ma Cambrian | 516 Ma Cambrian | |
| Wanneria β genus | accepted (GBIF) listed (PBDB) | 23 | 541 Ma Cambrian | 516 Ma Cambrian | |
Synonymy List
| Year | Name and Author |
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| 1890 | Olenellidae Walcott |
| 1952 | Olenellidae Riccio p. 29 |
| 1979 | Olenellidae Palmer and Halley p. 63 |
| 1993 | Olenellidae Palmer and Repina p. 21 |
| 1997 | Olenellidae Whittington et al. p. 407 |
| 1998 | Olenellidae Lieberman p. 68 |
| 1999 | Olenellidae Lieberman p. 8 |
| 2005 | Olenellidae Hollingsworth p. 135 |
| 2006 | Olenellidae Skovsted p. 1093 |
| 2011 | Olenellidae Adrain p. 104 |
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!
Cadiz, Marble Mountains, San Bernardino County, California, USA