Calymene | |
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Calymene clavicula 32mm, Henryhouse Formation, Oklahoma, Cayugan | |
Scientific classification
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Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Arthropoda |
Class: | † Trilobita |
Order: | † Phacopida |
Family: | † Calymenidae |
Genus: | †
Calymene Brongniart, 1822 |
Type species | |
Calymene blumenbachii Brongniart, 1822
[1]
|
Calymene Brongniart, 1822, is a genus of trilobites in the order Phacopida, suborder Calymenina, that are found throughout North America, North Africa, and Europe in primarily Silurian outcrops. [2] Calymene is closely related to Flexicalymene, and both genera are frequently found enrolled. [3] Calymene trilobites are small, typically 2 cm in length. The cephalon is the widest part of the animal and the thorax usually has 13 segments. [4]
The correct genus authorship is Brongniart (1822). [5] A previously published genus description in Desmarest (1816) [6] (often mis-cited as "Calymena" Desmarest, 1817) was suppressed by ICZN Opinion 1433.
Calymene - meaning beautiful crescent as a reference to the glabella.
Since the genus Calymene was established early on in paleontology, a number of species previously assigned to it have since been transferred to other genera: [9]
Calymene | |
---|---|
![]() | |
Calymene clavicula 32mm, Henryhouse Formation, Oklahoma, Cayugan | |
Scientific classification
![]() | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Arthropoda |
Class: | † Trilobita |
Order: | † Phacopida |
Family: | † Calymenidae |
Genus: | †
Calymene Brongniart, 1822 |
Type species | |
Calymene blumenbachii Brongniart, 1822
[1]
|
Calymene Brongniart, 1822, is a genus of trilobites in the order Phacopida, suborder Calymenina, that are found throughout North America, North Africa, and Europe in primarily Silurian outcrops. [2] Calymene is closely related to Flexicalymene, and both genera are frequently found enrolled. [3] Calymene trilobites are small, typically 2 cm in length. The cephalon is the widest part of the animal and the thorax usually has 13 segments. [4]
The correct genus authorship is Brongniart (1822). [5] A previously published genus description in Desmarest (1816) [6] (often mis-cited as "Calymena" Desmarest, 1817) was suppressed by ICZN Opinion 1433.
Calymene - meaning beautiful crescent as a reference to the glabella.
Since the genus Calymene was established early on in paleontology, a number of species previously assigned to it have since been transferred to other genera: [9]