Eurypterids by Karen Carr

Shown: Eurypterid
Geologic period: Ordovician



Eurypterids are an extinct group of arthropods related to arachnids and include the largest known arthropods that ever lived. They are members of the extinct order Eurypterida, the most diverse Paleozoic chelicerate order in terms of species.

The name Eurypterida comes from the Greek word eury- meaning "broad" or "wide" and the Greek word pteron meaning "wing", for the pair of wide swimming appendages on the first fossil eurypterids discovered. Eurypterids predate the earliest fishes. The largest, such as Jaekelopterus, reached 2.5 metres (8 ft 2 in) in length, but most species were less than 20 centimetres (8 in). They were formidable predators that thrived in warm shallow water, in both seas and lakes. Eurypterids lived in the Ordovician to the Permian, from 460 to 248 million years ago.

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Institute for the Study of Earth and Man
Southern Methodist University
P.O. Box 0274
N.L. Heroy Hall
Dallas, TX
(214) 768-2425

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— As a guest speaker or lecturer

In addition to the time she spends painting, Karen finds time now and again to serve as a guest speaker, lecturer and instructor to museum groups, professional organizations, schools and universities. She has also presented master classes in art and digital painting at universities in the U.S.

Karen has delivered recent presentations for these institutions and groups:

  • Smithsonian National Museum of Natural History
  • Southern Methodist University
  • Guild of Natural Science Illustrators at the College of William & Mary and at Montana State University
  • New Mexico Highlands University
  • University of Texas at Arlington
  • University of North Texas
  • Dallas Paleontological Society


About Karen

Originally trained in the classical techniques of illustration and painting, Karen frequently speaks on the transition to a digital world, and on the challenges and benefits this transition poses for artists, clients and viewers. She conducts professional seminars on painting, illustration and digital image creation, and also offers specific programs tailored to the needs of professional groups or classroom instructors.

To contact Karen about a speaking engagement, just drop her a note or call her studio.

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