Diaphanometopidae ✝
| Description | Diaphanometopidae is a family of trilobites. Its representatives lived during the Arenig and Llanvirn stages of the Ordovician Period, approximately 479 to 463 million years ago. The Diaphanometopidae are thought to have been an early transitional group between the Ptychopariida ancestors and all other Phacopina. Diaphanometopidae, are found in the Lower and Middle Ordovician of Sweden and Russia. Three species are assigned to this family: Diaphanometopus volborthi that has been found in the Dapingian of Baltica, Gyrometopus lineatus occurring in the Floian of Baltica and Prodalmanitina nikolaevi that is known from the Floian of Kolyma. These species have many ancestral characters compared to other Phacopina, but they do not seem to be each other's nearest relatives, which makes it unlikely this family will be maintained when the phylogeny has been studied in more detail. From Wikipedia article at https://en.wikipedia.org/wiki/Diaphanometopidae, 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 : Phacopida : Diaphanometopidae | |||||||||||||||||||||||||||||||||||||||||||||
| Taxonomic Status (GBIF) | accepted | |||||||||||||||||||||||||||||||||||||||||||||
| Classification (PBDB,GBIF) |
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| Common Name | trilobite | |||||||||||||||||||||||||||||||||||||||||||||
| Scientific Name | Diaphanometopidae | |||||||||||||||||||||||||||||||||||||||||||||
| Opinions (PBDB) |
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| Status (PBDB) | extinct | |||||||||||||||||||||||||||||||||||||||||||||
| Taxon Size (PBDB) | 6 | |||||||||||||||||||||||||||||||||||||||||||||
| First Recorded Appearance | 479 - 472 Ma Early/Lower Ordovician | |||||||||||||||||||||||||||||||||||||||||||||
| Last Recorded Appearance | 479 - 472 Ma Early/Lower Ordovician | |||||||||||||||||||||||||||||||||||||||||||||
| Environment | marine (based on Trilobita) | |||||||||||||||||||||||||||||||||||||||||||||
| Motility | fast-moving (based on Trilobita) | |||||||||||||||||||||||||||||||||||||||||||||
| Diet | carnivore (based on Phacopina) | |||||||||||||||||||||||||||||||||||||||||||||
| Ontogeny | molting,addition of parts (based on Trilobita) | |||||||||||||||||||||||||||||||||||||||||||||
| 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 | |||||||||||||||||||||||||||||||||||||||||||||
| Common Name(s) | Trilobite | |||||||||||||||||||||||||||||||||||||||||||||
| Wikipedia | https://en.wikipedia.org/wiki/Diaphanometopidae |
Fossil Distribution
Subtaxa
| Name | Status | Common Name(s) | Fossil Occurrences | Oldest | Youngest |
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| Diaphanometopus ✝ genus | doubtful (GBIF) listed (PBDB) | ||||
| Gyrometopus ✝ genus | accepted (GBIF) listed (PBDB) | 1 | 479 Ma Early/Lower Ordovician | 479 Ma Early/Lower Ordovician | |
 Malladaia ✝genus | accepted (GBIF) listed (PBDB) | ||||
| Odontochile ✝ genus | accepted (GBIF) listed (PBDB) | 77 | 433 Ma Silurian | 403 Ma Early/Lower Devonian | |
| Prodalmanitina ✝ genus | accepted (GBIF) listed (PBDB) |
Synonymy List
| Year | Name and Author |
|---|---|
| 1959 | Diaphanometopidae Jaanusson |
| 2002 | Diaphanometopidae Jell and Adrain p. 469 |
| 2011 | Diaphanometopidae Adrain p. 106 |
References
