Jujuyaspis borealis and associated trilobites and conodonts from the Lower Ordovician of Texas and Utah
- 31 December 1986
- journal article
- research article
- Published by Cambridge University Press (CUP) in Journal of Paleontology
- Vol. 61 (1) , 112-121
- https://doi.org/10.1017/s0022336000028249
Abstract
Jujuyaspis borealis is reported from earliest Ordovician (North American usage) limestones in central Texas and western Utah, the first time this species has been recognized in the United States. Jujuyaspis is a widespread olenid trilobite that occurs near the base of the Tremadoc Series in a variety of lithologies in North and South America, Europe, and Asia. When international agreement is reached on the exact horizon at or near the base of the Tremadoc Series that is to be used as the Cambrian–Ordovician boundary, Jujuyaspis will likely prove to be a very useful taxon for recognition of the boundary interval.This publication has 3 references indexed in Scilit:
- The Moore Hollow Group of Central TexasPublished by The University of Texas at Austin, Bureau of Economic Geology ,2016
- Cambrian and earliest Ordovician conodont evolution, biofacies, and provincialismPublished by Geological Society of America ,1984
- The Cambro ‐ Ordovician boundaryLethaia, 1973