Diaphanometopidaeis afamilyoftrilobites.Its representatives lived during theArenigandLlanvirn stagesof theOrdovician Period,approximately 479 to 463 million years ago.[1]The Diaphanometopidae are thought to have been an early transitional group between thePtychopariidaancestors and all otherPhacopina.Diaphanometopidae, are found in the Lower and Middle Ordovician of Sweden and Russia.[1][2][3]Three species are assigned to this family:Diaphanometopus volborthithat has been found in theDapingianofBaltica,Gyrometopus lineatusoccurring in theFloianof Baltica andProdalmanitina nikolaevithat is known from theFloianofKolyma.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 thephylogenyhas been studied in more detail.[4]
| Diaphanometopidae Temporal range:
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|---|---|
| |
| Gryometopus lineautus | |
Scientific classification
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | †Trilobita |
| Order: | †Phacopida |
| Superfamily: | †Dalmanitoidea |
| Family: | †Diaphanometopidae JaanussoninMoore, 1959 |
| Genera | |
References
edit- ^abMoore, R. C. (ed.). Treatise on Invertebrate Paleontology. Part O – Arthropoda (Trilobitomorpha). 1959
- ^"Per Hansson's trilobite gallery - Trilobites from Sweden".16 October 2022.
- ^Jell, P. A.; Adrian, J. M. (2002). "Available generic names for trilobites".Memoirs of the Queensland Museum.48(part 2): 331–553.
- ^J.M. Adrian (2014). "20. A synopsis of Ordovician trilobite distribution and diversity". InD.A.T. Harper;T. Servais (eds.).Early Palaeozoic Biogeography and Palaeogeography.Memoirs of the Geological Society of London. Vol. 38. Geological Society of London. p. 490.ISBN978-1862393738.
External links
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Data related toDiaphanometopidaeat Wikispecies
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