| Calymenina Temporal range: | |
|---|---|
 | |
| Colpocoryphe grandis (Calymenidae) | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | † Trilobita |
| Order: | † Phacopida |
| Suborder: | † Calymenina |
| Families | |
Calymenina is a suborder of the trilobite order Phacopida. [1]
Phacopida ("lens-face") is an order of trilobite that lived from the Late Cambrian to the Late Devonian. It is made up of a morphologically diverse group of related suborders.
Ptychopariida is a large, heterogeneous order of trilobite containing some of the most primitive species known. The earliest species occurred in the second half of the Lower Cambrian, and the last species did not survive the Ordovician–Silurian extinction event.
Dalmanitoidea is a superfamily of trilobites in the order Phacopida, containing the three families Dalmanitidae, Diaphanometopidae and Prosopiscidae.
Dalmanitidae is a family of trilobites in the order Phacopida that lived from the Floian (Ordovician) to the Devonian and includes 33 genera.
Acastoidea is a superfamily of trilobites from the order Phacopida, suborder Phacopina. This superfamily is divided into two families, Acastidae and Calmoniidae. This superfamily is distinguishable from the Phacopidae in that eyes are closer to the glabella and that the glabella has lobes, unlike the genera in Phacopidae.
Acastidae is a family of trilobites in the order Phacopida, suborder Phacopina, superfamily Acastoidea, containing the following genera:
Calmoniidae is a family of trilobites from the order Phacopida, suborder Phacopina, superfamily Acastoidea.
Acastava is an extinct genus of trilobite in the order Phacopida, from the upper Pragian to Emsian period of the Devonian.
Achatella is a genus of trilobite in the order Phacopida, which existed in what is now Ontario, Canada. It was named by Delo in 1935, and the type species is Achatella achates, which was originally assigned to the genus Dalmanites by Billings in 1860. Achatella also contains the species Achatella billingsi, and Achatella truncatocaudata.
Ceraurinus is an extinct genus of trilobite in the order Phacopida. It contains one species, C. serratus.
Cybelopsis is a trilobite in the order Phacopida, that existed during the lower Ordovician in what is now Greenland. It was described by Poulsen in 1927, and the type species is Cybelopsis speciosa. The type locality for the genus was the Nunatami Formation.
Deltacephalaspis is an extinct genus of trilobites in the order Phacopida. It contains four species, D. comis, D. magister, D. retrospina, and D. tumida. Fossils of the genus have been found in the Belén, Icla and Gamoneda Formations of Bolivia and the Gydo Formation of South Africa.
Hadromeros is an extinct genus of trilobite in the order Phacopida.
Heliomera is an extinct genus of trilobite in the order Phacopida. It contains two species. H. albata and H. sol.
Kawina is an extinct genus of trilobite in the order Phacopida. It contains one species, K. wilsoni.
Encrinuridae is a family of trilobite within the order Phacopida that lived in what would be Africa, Asia, Australia, Europe, North America, and South America from the middle Ordovician to the early Devonian from 479 to 412.3 million years ago, existing for approximately 66.7 million years.
Calymenidae is a family of trilobites, containing the following genera:
Pilekiidae is a family of trilobites in the order Phacopida, specifically within Suborder Cheirurina. It includes the following genera:
Cheirurina is a suborder of the trilobite order Phacopida. Known representatives range from the uppermost Cambrian to the end of the Middle Devonian (Givetian). Cheirurina is made up of a morphologically diverse group of related families.
Gregory Donald Edgecombe is a merit researcher in the department of Earth Sciences at the Natural History Museum, London. He is a leading figure in understanding the evolution of arthropods, their position in animal evolution and the integration of fossil data into analyses of animal phylogeny. As a palaeontologist, he is also an authority on the systematics of centipedes – and a morphologist whose work contributes to the growth and methods of analysis of molecular datasets for inferring evolutionary relationships.
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