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Geologic formation in Arkansas, United States
The Arkadelphia Marl , also called the Arkadelphia Formation , is a
geologic formation in
Arkansas in
Clark ,
Nevada , and
Hempstead counties.
[3]
[4] It preserves
fossils dating back to the
Cretaceous
period .
Paleofauna
Bony fish reported from the Arkadelphia Formation
Genus
Species
Presence
Material
Notes
Images
Albulidae indet.
Indeterminate
Cabot, Arkansas .
[5]
4 small, eroded specimens.
[5]
A
bonefish .
Ampheristus
A. cf. A. americanus
Cabot, Arkansas .
[5]
6 specimens.
[5]
An
ophidiiform .
Anguilla
A.? chickasawae
Cabot, Arkansas .
[5]
6 specimens.
[5]
An
eel .
Apateodus
A. crenellatus?
Cabot, Arkansas .
[5]
3 specimens.
[5]
An
aulopiform .
Arius
A.? subtilis
Cabot, Arkansas .
[5]
A well-preserved specimen (DMNH 2021-09-11).
[5]
A
catfish .
Clupeiformes ? indeterminate
Indeterminate
Cabot, Arkansas .
[5]
An eroded, broken specimen (DMNH 2021-09-10).
[5]
A
clupeiform .
Echiophis
E. aff. E. semisphaeroides
Cabot, Arkansas .
[5]
11 specimens.
[5]
An
eel .
Elopothrissus
E. sp.
Cabot, Arkansas .
[5]
One specimen (DMNH 2021-09-03).
[5]
A
bonefish .
Elops
E. sp.
Cabot, Arkansas .
[5]
A small, broken specimen (DMNH 2021-09-01).
[5]
A
ladyfish .
Eutawichthys
E. maastrichtiensis
Cabot, Arkansas .
[5]
21 specimens.
[5]
A
beryciform .
E. cf. E. stringeri
Cabot, Arkansas .
[5]
48 specimens.
[5]
A
beryciform .
E. zideki
Cabot, Arkansas .
[5]
287 specimens.
[5]
A
beryciform .
Gadiformes indeterminate
Indeterminate
Cabot, Arkansas .
[5]
11 very small or broken specimens.
[5]
A
gadiform .
Genartina
G. sp. 1
Cabot, Arkansas .
[5]
One specimen (DMNH 2021-09-04).
[5]
Kokenichthys
K. navis
Cabot, Arkansas .
[5]
2 eroded specimens.
[5]
An
osteoglossiform .
Lapillus type 1
Indeterminate
Cabot, Arkansas .
[5]
A small, slightly eroded specimen (DMNH 2021-09-31).
[5]
An unidentified fish
otolith .
Muraenanguilla
M.? sp.
Cabot, Arkansas .
[5]
2 worn, broken specimens.
[5]
An
eel .
Osmeroides
O. sp.
Cabot, Arkansas .
[5]
3 specimens.
[5]
Palaeogadus
P.? belli
Cabot, Arkansas .
[5]
Multiple specimens.
[5]
A
gadiform .
P. cf. P. weltoni
Cabot, Arkansas .
[5]
A small, slightly eroded specimen (DMNH 2021-09-23).
[5]
A
gadiform .
Protobythites
P. brzobohatyi
Cabot, Arkansas .
[5]
4 specimens.
[5]
An
ophidiiform .
Tippaha
T. mythica
Cabot, Arkansas .
[5]
8 specimens.
[5]
A
holocentriform .
Vorishia
V. vulpes
Cabot, Arkansas .
[5]
1,537 specimens.
[5]
A
catfish .
See also
References
^ 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)" .
^
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at Stringer, Gary L.; Sloan, James Carson (2023-05-25).
"First Cretaceous teleostean otolith assemblage (Arkadelphia Formation, upper Maastrichtian) from Arkansas, USA, early Gadiformes, and the Western Interior Seaway" . PaleoBios . 40 (3).
doi :
10.5070/P940361192 .
ISSN
2373-8189 .
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ag Becker, Martin A.; Chamberlain Jr, John A.; Wolf, George E. (2006).
"Chondrichthyans from the Arkadelphia Formation (Upper Cretaceous: Upper Maasstrichtian) of Hot Spring County, Arkansas" . Journal of Paleontology . 80 (4): 700–716.