Arthropods

Image is comprised of six separate smaller images featuringTrilobite (top left), eurypterid (top right), scorpion (middle left), crab (middle right), centipede (bottom left), and butterfly (bottom right).

Arthropoda collage: Trilobite (top left), eurypterid (top right), scorpion (middle left), crab (middle right), centipede (bottom left), and butterfly (bottom right).

Modern Day Arthropods

A variety of familiar organisms fall within the arthropod umbrella today, such as spiders, insects, and crustaceans.

In the Museum Collections

View specimen list here.

Total arthropod specimens: 339

Total identified species: 57

Specimens from Arkansas: 133

Identified species from Arkansas: 8

Fossil Record

Trilobites, now extinct, appear in the fossil record 521 to 252 million years ago. Over 25,000 different trilobite species have been identified.

Trilobite (UA Museum), Marion County, AR. Map indicates the county the specimen was found.

Image Credits:

  • Multiple Authors: Kolihapeltis 01 Pengo.jpg: Peter Halasz, Stylonurus BW.jpg: Nobu Tamura, SCORPIO MAURUS PALMATUS.jpg: Guy Haimovitch, Blue crab on market in Piraeus – Callinectes sapidus Rathbun 20020819-317.jpg: Wpopp, Female centipede with eggs.jpg: Marshal Hedin, John Kratz – Swallowtail (by-sa).jpg: John Kratz, derivative work: Xvazquez, Amada44. Wikimedia CommonsCC BY-SA 4.0.
  • Oberg, Danielle. Arkansas map.
  • Oberg, Danielle. U of A Museum paleontological specimens.