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Phacops ✝
| Description | Phacops is a genus of trilobites in the order Phacopida, family Phacopidae, that lived in Europe, northwestern Africa, North and South America and China from the Late Ordovician until the very end of the Devonian, with a broader time range described from the Late Ordovician. It was a rounded animal, with a globose head and large eyes, and probably fed on detritus. Phacops is often found rolled up, a biological defense mechanism that is widespread among smaller trilobites but further perfected in this genus. From Wikipedia article at https://en.wikipedia.org/wiki/Phacops, which is released under the Creative Commons Attribution-Share-Alike License 3.0. | |||||||||||||||||||||||||||||||||||||||||||||||||||
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| Source Data |
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| Rank | genus | |||||||||||||||||||||||||||||||||||||||||||||||||||
| Taxonomy (GBIF,PBDB) | Life : Animalia : Arthropoda : Trilobita : Phacopida : Phacopidae : Phacops | |||||||||||||||||||||||||||||||||||||||||||||||||||
| Taxonomic Status (GBIF) | accepted | |||||||||||||||||||||||||||||||||||||||||||||||||||
| Classification (PBDB,GBIF) |
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| Scientific Name | Phacops Emmrich, 1839 | |||||||||||||||||||||||||||||||||||||||||||||||||||
| Name Published In | De Trilobitis | |||||||||||||||||||||||||||||||||||||||||||||||||||
| Opinions (PBDB) |
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| Status (PBDB) | extinct | |||||||||||||||||||||||||||||||||||||||||||||||||||
| Taxon Size (PBDB) | 20 | |||||||||||||||||||||||||||||||||||||||||||||||||||
| First Recorded Appearance | 458 - 456 Ma Late/Upper Ordovician | |||||||||||||||||||||||||||||||||||||||||||||||||||
| Last Recorded Appearance | 365 - 354 Ma Paleozoic | |||||||||||||||||||||||||||||||||||||||||||||||||||
| Environment | marine (based on Trilobita) | |||||||||||||||||||||||||||||||||||||||||||||||||||
| Motility | fast-moving (based on Trilobita) | |||||||||||||||||||||||||||||||||||||||||||||||||||
| Vision | well-developed (based on Phacopidae) | |||||||||||||||||||||||||||||||||||||||||||||||||||
| Diet | carnivore (based on Phacopina) | |||||||||||||||||||||||||||||||||||||||||||||||||||
| Ontogeny | molting,addition of parts (based on Trilobita) | |||||||||||||||||||||||||||||||||||||||||||||||||||
| Ecospace Comments | BODY SIZE: Data from Harrington et al. (1959). | |||||||||||||||||||||||||||||||||||||||||||||||||||
| Taphonomy | low Mg calcite, chitin (based on Trilobita) | |||||||||||||||||||||||||||||||||||||||||||||||||||
| Primary Reference (PBDB) | T. J. A. Reijers. 1972. Facies and diagenesis of the Devonian Portilla Limestone Formation between the River Esla and the embalse de la Luna, Cantabrian Mountains, Spain. Leidse Geologische Mededelingen 47(2):163-249 | |||||||||||||||||||||||||||||||||||||||||||||||||||
| Wikipedia | https://en.wikipedia.org/wiki/Phacops |
Fossil Distribution
Subtaxa
| Name | Status | Common Name(s) | Fossil Occurrences | Oldest | Youngest |
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| Phacops (Boeckops) ✝ subgenus | listed (PBDB) | 11 | 411 Ma Early/Lower Devonian | 409 Ma Early/Lower Devonian | |
| Phacops (Chasmops) ✝ subgenus | listed (PBDB) | ||||
| Phacops (Omegops) ✝ subgenus | listed (PBDB) | 10 | 372 Ma Late/Upper Devonian | 365 Ma Late/Upper Devonian | |
| Phacops (Prokops) ✝ subgenus | listed (PBDB) | 9 | 419 Ma Early/Lower Devonian | 411 Ma Early/Lower Devonian | |
| Phacops (Pterygometopus) ✝ subgenus | listed (PBDB) | ||||
| Phacops acacia species | accepted (GBIF) | No associated record in PBDB | |||
| Phacops accipitrinus species | accepted (GBIF) | No associated record in PBDB | |||
| Phacops algericus species | accepted (GBIF) | No associated record in PBDB | |||
| Phacops alifrons ✝ species | accepted (GBIF) listed (PBDB) | ||||
| Phacops arichensis species | accepted (GBIF) | No associated record in PBDB | |||
| Phacops braziliensis species | accepted (GBIF) | No associated record in PBDB | |||
| Phacops callitris species | accepted (GBIF) | No associated record in PBDB | |||
| Phacops ceratophthalmus species | accepted (GBIF) | No associated record in PBDB | |||
| Phacops chlupaci species | accepted (GBIF) | No associated record in PBDB | |||
| Phacops circumspectans species | accepted (GBIF) | No associated record in PBDB | |||
| Phacops cristata ✝ species | listed (PBDB) | 15 | 393 Ma Early/Lower Devonian | 388 Ma Middle Devonian | |
| Phacops crosslei ✝ species | accepted (GBIF) listed (PBDB) | 1 | 443 Ma Silurian | 443 Ma Silurian | |
| Phacops cryptophthalmus species | accepted (GBIF) | No associated record in PBDB | |||
| Phacops downingiae species | accepted (GBIF) | No associated record in PBDB | |||
| Phacops fragosus species | accepted (GBIF) | No associated record in PBDB | |||
| Phacops granulops ✝ species | accepted (GBIF) listed (PBDB) | 2 | 403 Ma Early/Lower Devonian | 403 Ma Early/Lower Devonian | |
| Phacops handwerki species | accepted (GBIF) | No associated record in PBDB | |||
| Phacops hefteri species | accepted (GBIF) | No associated record in PBDB | |||
| Phacops holzapfeli species | accepted (GBIF) | No associated record in PBDB | |||
| Phacops imitator species | accepted (GBIF) | No associated record in PBDB | |||
| Phacops latifrons species | accepted (GBIF) | No associated record in PBDB | |||
| Phacops lebesus ✝ species | accepted (GBIF) listed (PBDB) | 2 | 393 Ma Early/Lower Devonian | 393 Ma Early/Lower Devonian | |
| Phacops macdonaldi ✝ species | accepted (GBIF) listed (PBDB) | 1 | 443 Ma Silurian | 443 Ma Silurian | |
| Phacops mancus species | accepted (GBIF) | No associated record in PBDB | |||
| Phacops marklandensis species | accepted (GBIF) | No associated record in PBDB | |||
| Phacops maximus ✝ species | accepted (GBIF) listed (PBDB) | ||||
| Phacops milleri species | accepted (GBIF) | No associated record in PBDB | |||
| Phacops orestes species | accepted (GBIF) | No associated record in PBDB | |||
| Phacops papulatus species | accepted (GBIF) | No associated record in PBDB | |||
| Phacops parabola species | accepted (GBIF) | No associated record in PBDB | |||
| Phacops pulchellus species | accepted (GBIF) | No associated record in PBDB | |||
| Phacops pupillus species | accepted (GBIF) | No associated record in PBDB | |||
| Phacops raymondi species | accepted (GBIF) | No associated record in PBDB | |||
| Phacops saberensis species | accepted (GBIF) | No associated record in PBDB | |||
| Phacops salteri species | accepted (GBIF) | No associated record in PBDB | |||
| Phacops sartenaeri species | accepted (GBIF) | No associated record in PBDB | |||
| Phacops smoothops ✝ species | accepted (GBIF) listed (PBDB) | 4 | 403 Ma Early/Lower Devonian | 393 Ma Early/Lower Devonian | |
| Phacops spedeni ✝ species | accepted (GBIF) listed (PBDB) | 2 | 408 Ma Early/Lower Devonian | 408 Ma Early/Lower Devonian | |
| Phacops sphaericeps species | accepted (GBIF) | No associated record in PBDB | |||
| Phacops vogeli species | accepted (GBIF) | No associated record in PBDB | |||
Synonymy List
| Year | Name and Author |
|---|---|
| 1839 | Phacops Emmrich p. 56 |
| 2002 | Phacops Sepkoski, Jr. |
| 2003 | Phacops Jell and Adrain p. 424 |
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!
Alnif Cercle, Tinghir Province, Drâa-Tafilalet Region, Morocco