Arkadelphia Marl

Arkadelphia Marl
Stratigraphic range: Late Cretaceous
Arkadelphia Marl; Stratigraphic range: Late Cretaceous
Type	Formation
Underlies	Midway Group
Overlies	Nacatoch Formation
Thickness	120 to 160 feet
Location
Region	Arkansas
Country	United States
Type section
Named for	Arkadelphia, Clark County, Arkansas
Named by	Robert Thomas Hill

The Arkadelphia Marl is a geologic formation in Arkansas in Clark, Nevada, and Hempstead counties.^[3]^[4] It preserves fossils dating back to the Cretaceous period.

Paleofauna[]

G. girardoti^[5]

G. lehneri^[5]

I. avonicola^[5]

I. mira^[5]

O. aculeatus^[5]

R. farishi^[5]

R. casieri^[5]

R. binkhorsti^[5]

S. serrata^[5]

S. kaupi^[5]

S. hassei^[5]

^ McFarland, John David (2004) [1998]. "Stratigraphic summary of Arkansas" (PDF). Arkansas Geological Commission Information Circular. 36: 31. Archived from the original (PDF) on 2016-12-21. Retrieved 2018-01-12.
^ Hill, R.T. (1888). "The Neozoic geology of southwestern Arkansas". Arkansas Geological Survey Annual Report 1888. 2: 33, 39, 53–56, 72, 188.
^ "ARKADELPHIA MARL/FORMATION". Archived from the original on 2016-08-19. Retrieved 2016-07-31.
^ "Arkadelphia Marl (ARKad;0)".
^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m ⁿ ^o ^p ^q Becker, Martin A.; Chamberlain Jr, John A.; Wolf, George E. (2006). "Chondrichthyans from the Arkadelphia Formation (Upper Creataceous: Upper Maasstrichtian) of Hot Spring County, Arkansas". Journal of Paleontology. 80 (4): 700–716.

Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 17 December 2021. {{cite web}}: |author= has generic name (help)

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