Fernvale Limestone

Geologic formation in Alabama, Arkansas, Illinois, Missouri, Oklahoma and Tennessee
Fernvale Limestone
Stratigraphic range: Ordovician
TypeFormation
UnderliesCason Shale
OverliesKimmswick Limestone
Thickness0 to 100+ feet in Arkansas[1]
Lithology
PrimaryLimestone
Location
RegionArkansas, Tennessee
CountryUnited States
Type section
Named byCharles Willard Hayes and Edward Oscar Ulrich[2]

The Fernvale Limestone is a geologic formation in Alabama, Arkansas, Illinois, Missouri, Oklahoma, and Tennessee.[1] It preserves fossils dating back to the Ordovician period.

Paleontology

Brachiopods

  • Lepidocyclus
L. cooperi[3]
L. oblongus[3]

Conodonts

  • Acodus
A. unicostatus[4]
  • Acontiodus
A. alveolaris[4]
  • Ambalodus
A. triangularis[4]
  • Amorphognatus
A. ordovicica[4]
  • Aphelognathus
A. polita[4]
  • Belodina
B. compressa[4]
B. inclinata[4]
B. ornata[4]
B. penna[4]
B. profunda[4]
C. delicatus[4]
C. flexuosus[4]
  • Dichognathus
D. brevis[4]
D. scotti[4]
D. typica[4]
  • Distacodus
D. falcatus[4]
  • Drepanodus
D. homocurvatus[4]
D. suberectus[4]
  • Eoligonodina
E. delicata[4]
  • Icriodella
I. superba[4]
  • Keislognathus
K. gracilis[4]
  • Oistodus
O. abundans[4]
O. inclinatus[4]
O. parallelus[4]
O. venustus[4]
O. inclinata[4]
O. tenuis[4]
  • Paltodus
P. trigonius[4]
P. compressus[4]
P. ellisoni[4]
P. fornicalis[4]
P. gracilis[4]
P. homosimilaris[4]
P. panderi[4]
P. simplex[4]
P. sulcatus[4]
  • Phragmodus
P. undatus[4]
  • Prioniodina
P. furcata[4]
  • Rhynchognathodus
R. divaricatus[4]
R. typicus[4]
  • Sagittodontus
S. robustus[4]
  • Scolopodus
S. insculptus[4]
  • Trichonodella
T. exacta[4]
T. diminuta[4]
T. tenuis[4]
  • Zygognathus
Z. curvata[4]
Z. mira[4]

See also

  • Earth sciences portal
  • flagUnited States portal
  • iconPaleontology portal

References

  1. ^ a b McFarland, John David (2004) [1998]. "Stratigraphic summary of Arkansas" (PDF). Arkansas Geological Commission Information Circular. 36: 6–7. Archived from the original (PDF) on 2016-12-21. Retrieved 2018-01-11.
  2. ^ Hayes, C.W.; Ulrich, E.O. (1903). "Description of the Columbia quadrangle" (PDF). U.S. Geological Survey Geologic Atlas of the United States. 95: 2.
  3. ^ a b Amsden, Thomas W. (1983). "The Late Ordovician brachiopod genera Lepidocyclus and Hiscobeccus" (PDF). Oklahoma Geological Survey Bulletin. 132: 36–44, 52–59 (plates). Retrieved 4 February 2018.
  4. ^ a b c d e f g h i j k l m n o p q r s t u v w x y z aa ab ac ad ae af ag ah ai aj ak al am an ao ap aq ar as at au Craig, William (1968). The stratigraphy and conodont paleontology of Ordovician and Silurian strata, Batesville district, Independence and Izard counties, Arkansas (PhD). The University of Texas.
  • Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Archived from the original on 25 March 2022. Retrieved 17 December 2021.


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