Lower Mississippian trilobites from southern New Mexico
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Abstract
Twenty-three species of trilobites are recognized in the lower Mississippian Caballero and Lake Valley Formations of southern New Mexico. Species exhibit a segregation into shelf and off-shelf faunas, and can be subdivided into three distinct stratigraphic faunas. Species found in the Caballero Formation are similar to those found in the Chouteau Formation of Missouri. A second fauna, comprising species found in the Alamogordo, Nunn, and Tierra Blanca Members of the Lake Valley Formation, is correlated with the Fern Glen and Burlington Formations of Missouri. The third fauna found in the Arcente and Dona Ana Members of the Lake Valley Formation is correlated with the Warsaw and Salem Formations of the United States midcontinent region.
Named species from the Kinderhookian Caballero Formation include: Dixiphopyge armata (Vogdes, 1891), Comptonaspis swallowi (Shumard, 1855), Brachymetopus indianwellsensis new species, Ameropiltonia perplexa new species, Griffithidella caballeroensis new species, and Kollarcephalus granatai new genus and new species. Named species from the Lake Valley Formation include: Pudoproetus fernglenensis (Weller, 1909), Breviphillipsia semiteretis Hessler, 1963, Griffithidella doris (Hall 1860), Phillibole planucauda (Brezinski, 1998), Piltonia carlakertisae new species, Australosutura llanoensis Brezinski, 1998, Thigriffides triangulatus new species, Thigriffides? alamogordoensis new species, Namuropyge newmexicoensis new species, Nunnaspis stitti new genus and new species, Hesslerides arcentensis new genus and new species, as well as an unnamed species of Proetides Hessler, 1962, Namuropyge Brezinski, 1988, and Thigriffides Hessler, 1965.
Study Area
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Lower Mississippian trilobites from southern New Mexico |
| Series title | Journal of Paleontology |
| DOI | 10.1666/0022-3360(2000)074<1043:LMTFSN>2.0.CO;2 |
| Volume | 74 |
| Issue | 6 |
| Year Published | 2000 |
| Language | English |
| Publisher | Cambridge University Press |
| Description | 22 p. |
| First page | 1043 |
| Last page | 1064 |
| Country | United States |
| State | New Mexico |
| Other Geospatial | Caballero Formation, Lake Valley Formation |
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