// Workers AI · dad joke modeWhat did Entomaspis say to its date? Bee mine.
| Entomaspis Temporal range: | |
|---|---|
 | |
| E. radiata | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Clade: | †Artiopoda |
| Class: | †Trilobita |
| Order: | †Harpetida |
| Family: | †Entomaspididae |
| Genus: | †Entomaspis Ulrich, 1931 |
| Type species | |
| Entomaspis radiata Ulrich, 1931 | |
| Species | |
| |
Entomaspis is an extinct genus of harpetid trilobite from Upper Cambrian to Early Ordovician marine strata of the United States. Species are typified by their proportionally large, vaulted, croissant-shaped or bonnet-shaped cephalons that have the cheeks freed to become elongated, curved librigenial spines, and by their comparatively large, crescent-shaped eyes (in comparison with other eyed harpetids).
Species
[edit]E. bridgei
[edit]E. bridgei is a species found in marine strata of Missouri.
E. clarki
[edit]E. clarki is a species found in Lower Ordovician marine strata of Vermont.[1]
E. radiata
[edit]E. radiata is the type species, and is found in Uppermost Cambrian and Lowermost Ordovician marine strata of Utah. It coexisted sympatrically with E. rawi.
E. rawi
[edit]E. rawi was originally described as Hypothetica rawi, and coexisted with E. radiata in Lowermost Ordovician marine strata of Utah.[2]
References
[edit]- ↑ Shaw, Alan B. "Paleontology of Northwestern Vermont. XII. Fossils from the Ordovician Highgate Formation." Journal of Paleontology (1966): 1312-1330.
- ↑ Moore, R.C. (1959). Arthropoda I - Arthropoda General Features, Proarthropoda, Euarthropoda General Features, Trilobitomorpha. Treatise on Invertebrate Paleontology. Vol. Part O. Boulder, Colorado/Lawrence, Kansas: Geological Society of America/University of Kansas Press. pp. 1–560, 419. ISBN 0-8137-3015-5.
{{cite book}}: ISBN / Date incompatibility (help)
Sources
[edit]External links
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