Chouteau Limestone Research Articles

Lower Mississippian trilobites from southern New Mexico

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.

LOWER MISSISSIPPIAN TRILOBITES FROM SOUTHERN NEW MEXICO

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.

Trilobites from lower Mississippian Starved Basin facies of the Southern United States

A distinctive trilobite fauna occurs within condensed statigraphic sections of the Lower Mississippian (Tournaisian) Chappel Limestone of the Llano region of Texas, the Welden Limestone of Oklahoma, and the Chouteau Limestone of Union County, Illinois. The seven species comprising this fauna are interpreted to have inhabited sediment-starved basinal environments. The starved-basin facies existed in the south-central United States throughout the Tournaisian (Kinderhookian to Osagean). Two species from this fauna,Australosutura llanoensis,andCarbonocoryphe planucauda,are new. The remaining five species,Griffithidella doris(Hall),Griffithidella alternata(Girty),Carbonocoryphe depressa(Girty),Thigiffides roundyi(Girty), andPudoproetus chappelensis(Hessler), are restricted to starved-basin facies.

Conodonts from the McCraney Limestone and the McCraney-Chouteau Limestone Transition Beds (Kinderhookian, Lower Carboniferous) in Northeastern Missouri and West-Central Illinois, U.S.A.

Good preservation of the impoverished Kinderhookian (Lower Carboniferous) conodont fauna from the McCraney Limestone and beds transitional with the underlying Chouteau Limestone in Missouri and west-central Illinois allowed apparatus reconstruction for the species Polygnathus communis, Arisemotaxis barbatus, A. brevialata, Hindeodus crassidentatus, Idioprioniodus? sp., Metaprioniodus biangulatus, the Siphonodella? cooperi-isosticha-obsoleta complex and several possible partial apparatuses. The Missouri fauna suggests that these strata are near the top of the Lower Siphonodella crenulata Zone and may be stratigraphically higher than the McCraney Limestone from southeastern Iowa. Only Polygnathus communis was recovered from Illinois sections.

Revision and redescription of some Lower Mississippian trilobites from the Chouteau Formation (Kinderhookian) of central Missouri

Recent recovery of specimens of new and previously poorly known Lower Mississippian trilobite species from the Chouteau Formation of central Missouri has prompted their comparison with contemporaries of Eurasia. Two new genera,DixiphopygeandComptonaspis, are proposed utilizingBrachymetopus armatusVogdes andProetus swallowiShumard, respectively, as type species. Two species are assigned toBrachymetopusandNamuropyge, genera previously unknown from Chouteau strata. The first complete dorsal exoskeletons of the genusProetidesWinchell are described and illustrated. Indeterminate species ofBreviphillipsiaandPiltoniaare described and illustrated.

Trilobite associations from the Chouteau Formation (Kinderhookian) of central Missouri

Three distinct trilobite associations can be recognized in the Chouteau Formation (Tournaisian, Early Carboniferous) of central Missouri. These associations appear to be lithologically and environmentally sensitive. Association A, the stratigraphically lowest association, contains six genera and is among the most diverse Carboniferous trilobite associations known in North America. This association is dominated numerically by Proetides colemani and exhibits a restricted geographic and stratigraphic distribution. The association is found only in the basal 20 cm of the Chouteau Formation at one locality, in strata representing transgressive subtidal deposits. Association B is found within subtidal and open shelf lithologies and is dominated by two trilobite species, Breviphillipsia sampsoni and Breviphillipsia? swallowi. Breviphillipsia sampsoni, an apparently eurytopic species, is found in both shaly and carbonate strata but is predominately recovered from the shaly partings and interbeds. Breviphillipsia? swallowi, a more stenotopic species, occurs primarily in the more carbonate-rich intervals. In addition, five trilobite species, subordinate in numbers, are only locally common in Association B. The sparse trilobite fauna of Association C is dominated numerically by Namuropyge? armata, and is contained within open shelf sediments that interfinger with mud biostrome lithologies.Early Carboniferous adaptive radiation of trilobites resulted from the creation of new ecospace by transgression. This allowed initially eurytopic trilobites to move into and occupy certain niches that may have been unavailable to them prior to the Frasnian extinctions. With continued deepening, niche-specialized associations developed in more offshore settings.

MISSISSIPPIAN FORMATIONS OF SOUTHWESTERN NEW MEXICO

Research Article| January 01, 1949 MISSISSIPPIAN FORMATIONS OF SOUTHWESTERN NEW MEXICO LOWELL R LAUDON; LOWELL R LAUDON UNIVERSITY OF WISCONSIN, MADISON, WISCONSIN; ASSOCIATE CURATOR, UNITED STATES NATIONAL MUSEUM, WASHINGTON, D.C. Search for other works by this author on: GSW Google Scholar ARTHUR L BOWSHER ARTHUR L BOWSHER UNIVERSITY OF WISCONSIN, MADISON, WISCONSIN; ASSOCIATE CURATOR, UNITED STATES NATIONAL MUSEUM, WASHINGTON, D.C. Search for other works by this author on: GSW Google Scholar GSA Bulletin (1949) 60 (1): 1–88. https://doi.org/10.1130/0016-7606(1949)60[1:MFOSNM]2.0.CO;2 Article history received: 18 Feb 1947 first online: 02 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share MailTo Twitter LinkedIn Tools Icon Tools Get Permissions Search Site Citation LOWELL R LAUDON, ARTHUR L BOWSHER; MISSISSIPPIAN FORMATIONS OF SOUTHWESTERN NEW MEXICO. GSA Bulletin 1949;; 60 (1): 1–88. doi: https://doi.org/10.1130/0016-7606(1949)60[1:MFOSNM]2.0.CO;2 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGSA Bulletin Search Advanced Search Abstract Mississippian rocks have been studied in detail over all of their area of exposure in southwestern New Mexico except in the Peloncillo and Little Hatchet mountain areas. Sections have been diagrammed and correlation charts prepared for all pertinent areas.Rocks representing parts of all four standard Mississippi Valley series—Kinder-hook, Osage, Meramec, and Chester—are present in New Mexico.The Kinderhook is represented by the Caballero formation, a correlative of the Chouteau limestone (Chouteau = Compton of Moore, 1928), consisting of soft, nodular, fossiliferous, shaly limestone, resting unconformably on various parts of the Devonian and overlain by Osage beds.The Osage series is represented by the Lake Valley, an early Osage formation, and the Kelly formation tentatively assigned to the Osage because of lithologic characteristics and stratigraphic position. The Lake Valley formation is divided into six members: Andrecito, Alamogordo, Nunn, Tierra Blanca, Arcente, and Dona Ana. Andrecito, Nunn, and Tierra Blanca are new names. The Andrecito consists of a variable series of soft, shaly limestone beds; the Alamogordo of hard, black, cherty, cliff-forming limestone; the Nunn of soft, blue-gray crinoidal marl beds; the Tierra Blanca of massive cherty criquina (closely packed, fragmental, crinoid skeletal parts in which even the separate columnals are broken (Tester, 1941, p. 6). This term is used throughout this paper for highly fragmental crinoidal limestone as opposed to normal crinoidal limestone in which the skeletal parts are relatively intact. The Arcente consists of thin-bedded, soft, relatively unfossiliferous siltstone; and the Dona Ana of massive, very cherty criquina. The Kelly formation consists of massive, gray, slightly crinoidal limestone of lighter color than the Lake Valley and is developed only in the western part of the area. Its relation to the underlying Lake Valley formation has not been accurately determined. The Lake Valley and Kelly formations are absent from the Hueco and Franklin mountain areas.The Meramec series is represented by two new formations, the Las Cruces and the Rancheria. Both were originally included in the Helms formation. The former formation consists of medium-bedded, dense, black, gray-weathering, chert-free, poorly fossiliferous limestone. It rests unconformably on Devonian beds and is overlain unconformably by the Rancheria formation. The Las Cruces formation is developed only in the Franklin Mountains and in the southern San Andres Range. The Rancheria formation consists of medium-bedded, very cherty, black, silty limestone. It rests with marked unconformity on both Devonian and Mississippian beds and transgressively overlaps northward in both Sacramento and San Andres mountain areas. In the Franklin and Hueco mountains, it is unconformably overlain by the Helms formation (restricted) of late Chester age. The Leiorhynchus carboniferum fauna occurs in the Rancheria formation making possible a direct correlation with the Moorefield formation of the Ozark region.The Chester series is represented by the Helms formation (restricted) which consists of soft, green, sandy shales with nodular, fossiliferous limestone beds near the top and containing upper Chester fossils.Mississippian rocks are unconformably overlain by Pennsylvanian strata. Evidence of marked relief on the erosion surface is common. In the San Andres Range, thick accumulations of reworked Mississippian cherts in basal Pennsylvanian beds offer strong evidence suggesting post-Mississippian orogenics.The strange biohermal structures that characterize the Lake Valley formation in the Sacramento Mountains are locally, but less spectacularly, developed throughout the area of exposure of the Lake Valley formation. This content is PDF only. Please click on the PDF icon to access. 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Subsurface Stratigraphy of the Kinderhook-New Albany Strata in Illinois: ABSTRACT

This paper summarizes the subsurface occurrence of the Kinderhook-New Albany succession in Illinois and shows the relationships of the formations and facies from place to place. A zone of relatively thinner strata extending northeasterly from the Ozark uplift divides the region into two sedimentary provinces. Southeast of this zone the succession is predominantly hard, black New Albany shale capped by the Rockford limestone. Its thickness increases southeasterly to a maximum in Gallatin and Hardin counties. Along the zone of relatively thinner strata the black shale is overlain by gray and greenish shales and siltstones in turn overlain by the Rockford limestone. In a limited area northwest of the zone, as far as Calhoun, Green, Macoupin, and Montgomery counties, the upward succession is the black Grassy Creek shale, the Louisiana limestone, the blue Maple Mill shale and siltstone, and the Chouteau limestone. The Chouteau limestone is shown to be the westerly equivalent of the Rockford limestone. Farther northwest, as far as the Kinderhook occurs in Illinois, the black shale grades upward through grayish brown into gray and blue shales, succeeded by the English River siltstone, the McCraney limestone, and the Prospect Hill siltstone. The total thickness of these strata reaches a maximum in Hancock County. There is an erosional unconformity between the Kinderhook and overlying Osage group. A number of cross sections and isopach maps illustrate correlations and changes in thickness and facies of the strata throughout their subsurface occurrence in Illinois. End_of_Article - Last_Page 915------------

Mississippian Formations of Sacramento Mountains of New Mexico: ABSTRACT

Formations of Mississippian age are exposed along the west face of the Sacramento mountains of New Mexico from a short distance north of Alamogordo southward to the vicinity of Grapevine canyon. Detailed sections have been measured and the faunas collected throughout the entire area of exposure. The name Cabellero is proposed for the gray, nodular, marly limestone formation of Kinderhook age lying at the base of the Mississippian section. The Caballero formation has heretofore been considered as a part of the Lake Valley formation. The Lake Valley formation has been divided into three members, Alamogordo at the base, followed by Arcente, and capped by Dona Ana. The fauna of the Caballero formation is closely related to that of the Chouteau formation of the upper Mississip i valley region. The Lake Valley formation is entirely of early Osage age. Both Fern Glen and lower Burlington faunas can be recognized. Spectacular large bioherms characterize the Alamogordo member making it necessary to subdivide the member into several facies. End_of_Article - Last_Page 935------------

Mississippian Formations of Sacramento Mountains, New Mexico

Formations of Mississippian age are exposed along the west face of the Sacramento Mountains of New Mexico from a short distance north of Alamogordo southward to the vicinity of Grapevine Canyon. Detailed sections have been measured and the faunas collected throughout the entire area of exposure. The name Caballero is proposed for the gray, nodular, marly limestone formation of Kinderhook age lying at the base of the Mississippian section. The Caballero formation has heretofore been considered as a part of the Lake Valley formation. The Lake Valley formation has been divided into three members, Alamogordo at the base, followed by Arcente, and capped by Dona Ana. The fauna of the Caballero formation is closely related to that of the Chouteau formation of the upper Mississip i Valley region. The Lake Valley formation is entirely of early Osage age. Both Fern Glen and lower Burlington faunas can be recognized. Spectacular, large bioherms characterize the Alamogordo member, making it necessary to subdivide the member into several facies.

Devonian interval in Missouri

Introductory In central Missouri Carboniferous stratigraphy presents unusual relationships. Nowhere else in the whole region does the same succession of Paleozoic terranes prevail. Beginning with the typical Chouteau limestone as the basal member, the Carboniferous sequence rests directly on Ordovician dolomites. In other parts of the state the hiatus is represented by extensive sections of Silurian and Devonian age. Of these the last mentioned is by far the most important. In the region contiguous the deposits laid down during the Devonian interval are in many respects of exceptional interest. It is here purposed to regard the beds formed during the Devonian interval as a formation having distinct individuality. While unequally developed, it is not so indefinitely defined as has appeared at first glance or as has been generally supposed. The ascribed vagueness has been found to be due in great measure to the fact of its being little understood. In . . .