Angelina (trilobite)

Angelina
Temporal range: Lower Ordovician
Angelina sedgwicki
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Trilobita
Order: Ptychopariida
Suborder: Olenina
Family: Olenidae
Subfamily: Triarthrinae
Genus: Angelina
Salter, 1859
Species
  • Angelina sedgwickii Salter, 1859 (type)
Synonyms

Keidelaspis

Angelina is a genus of trilobite that lived during the Lower Ordovician (upper Tremadocian). It is known from Wales and South America. It differs from most other Triarthrinae in being larger, with a relatively narrow central raised area of the headshield (or glabella), with the occipital ring at the back of the glabella not well defined, and obscure lateral furrows. The eyes are placed midlength the headshield (or cephalon). The facial sutures converge on the front border at the midline. It also has very long and broad genal spines.[1]

References

  1. ↑ Moore, R.C. (1959). Arthropoda I - Arthropoda General Features, Proarthropoda, Euarthropoda General Features, Trilobitomorpha. Treatise on Invertebrate Paleontology. Part O. Boulder, Colorado/Lawrence, Kansas: Geological Society of America/University of Kansas Press. pp. 1–560. ISBN 0-8137-3015-5.