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Hemisphaerocoryphe ✝
| Description | Sphaerocoryphe is a genus of trilobite that lived from the middle Ordovician to the Silurian. Its fossils have been found in Australia, Europe, and North America. Both Sphaerocoryphe and Hemisphaerocoryphe had a characteristically bulbous glabella, and the two may represent only one genus. From Wikipedia article at https://en.wikipedia.org/wiki/Hemisphaerocoryphe, 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 : Cheiruridae : Hemisphaerocoryphe | ||||||||||||||||||||||||||||||||||||||||||||||||
| Taxonomic Status (GBIF) | accepted | ||||||||||||||||||||||||||||||||||||||||||||||||
| Classification (PBDB,GBIF) |
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| Scientific Name | Hemisphaerocoryphe Reed, 1896 | ||||||||||||||||||||||||||||||||||||||||||||||||
| Name Published In | Geol. Mag., (4) 3 | ||||||||||||||||||||||||||||||||||||||||||||||||
| Opinions (PBDB) |
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| Status (PBDB) | extinct | ||||||||||||||||||||||||||||||||||||||||||||||||
| Taxon Size (PBDB) | 8 | ||||||||||||||||||||||||||||||||||||||||||||||||
| First Recorded Appearance | 479 - 468 Ma Ordovician | ||||||||||||||||||||||||||||||||||||||||||||||||
| Last Recorded Appearance | 458 - 450 Ma Late/Upper Ordovician | ||||||||||||||||||||||||||||||||||||||||||||||||
| Environment | marine (based on Trilobita) | ||||||||||||||||||||||||||||||||||||||||||||||||
| Motility | fast-moving (based on Trilobita) | ||||||||||||||||||||||||||||||||||||||||||||||||
| Vision | well-developed | ||||||||||||||||||||||||||||||||||||||||||||||||
| Diet | carnivore (based on Cheiruridae) | ||||||||||||||||||||||||||||||||||||||||||||||||
| 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 | ||||||||||||||||||||||||||||||||||||||||||||||||
| Wikipedia | https://en.wikipedia.org/wiki/Hemisphaerocoryphe |
Fossil Distribution
Subtaxa
| Name | Status | Common Name(s) | Fossil Occurrences | Oldest | Youngest |
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| Hemisphaerocoryphe elliptica ✝ species | accepted (GBIF) listed (PBDB) | 2 | 479 Ma Early/Lower Ordovician | 467 Ma Middle Ordovician | |
| Hemisphaerocoryphe granulata ✝ species | accepted (GBIF) listed (PBDB) | 10 | 461 Ma Middle Ordovician | 458 Ma Late/Upper Ordovician | |
| Hemisphaerocoryphe huebneri ✝ species | accepted (GBIF) listed (PBDB) | 1 | 461 Ma Middle Ordovician | 461 Ma Middle Ordovician | |
| Hemisphaerocoryphe inflatus ✝ species | accepted (GBIF) listed (PBDB) | 2 | 461 Ma Middle Ordovician | 458 Ma Middle Ordovician | |
| Hemisphaerocoryphe platinflata ✝ species | accepted (GBIF) listed (PBDB) | 7 | 472 Ma Early/Lower Ordovician | 472 Ma Early/Lower Ordovician | |
| Hemisphaerocoryphe pseudohemicranium ✝ species | accepted (GBIF) listed (PBDB) | 1 | 461 Ma Middle Ordovician | 461 Ma Middle Ordovician | |
| Hemisphaerocoryphe sphaericus ✝ species | accepted (GBIF) listed (PBDB) | 4 | 466 Ma Middle Ordovician | 461 Ma Middle Ordovician |
Synonymy List
| Year | Name and Author |
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| 1896 | Hemisphaerocoryphe Reed |
| 1925 | Hemisphaerocoryphe Warburg |
| 1961 | Hemisphaerocoryphe Nikolaisen |
| 1975 | Ellipsocoryphe Lu |
| 1998 | Sphaerocoryphe (Hemisphaerocoryphe) Zhou et al. p. 725 |
| 2002 | Hemisphaerocoryphe Jell and Adrain p. 383 |
| 2002 | Hemisphaerocoryphe Sepkoski, Jr. |
| 2005 | Hemisphaerocoryphe Hansen |
| 2014 | Hemisphaerocoryphe Zhou et al. pp. 103-104 |
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!
