| Ozan Formation | |
|---|---|
| Stratigraphic range: Cretaceous | |
_(Ozan_Formation,_Upper_Cretaceous;_eastern_Texas,_USA)_1.jpg) Fossil
ammonites from the Ozan Formation | |
| Type | Formation |
| Sub-units | Austin Group |
| Underlies | Annona Chalk |
| Overlies | Austin Chalk, Brownstown Marl |
| Thickness | 150 to 250 feet [1] |
| Location | |
| Region | Arkansas, Oklahoma |
| Country | United States |
| Type section | |
| Named by | C.H. Dane [2] |
The Ozan Formation is a geologic formation in Arkansas, Oklahoma [1] and Texas. It preserves fossils dating back to the Cretaceous period.
Paleofauna
Ostracods
- A. ponderosana [3]
- A. dubia [3]
- B. rotunda [3]
- B. windhami [3]
- C. fabaformis [3]
- C. bicornis [3]
- C. caudata [3]
- C. communis [3]
- C. costatana [3]
- C. dallasensis [3]
- C. hannai [3]
- C. paraustinensis [3]
- C. plummeri [3]
- C. spoori [3]
- C. verricula [3]
- C. austinensis [3]
- C. blakei [3]
- H. bruceclarki [3]
- H. councilli [3]
- H. globosa [3]
- H. insolita [3]
- H. micropunctata [3]
- H. plummeri [3]
- L. fletcheri [3]
- O. hannai [3]
- P. texanus [3]
- P. saratogana [3]
- V. reesidei [3]
Avians
Outcrops
-
Annona Chalk overlying Ozan Formation at what is now called White Cliffs Natural Area, with the Little River in the foreground, Howard County, AR (c. 1910) -
Another view of the same location (c. 1902)
See also
References
- ^ a b McFarland, John David (2004) [1998]. "Stratigraphic summary of Arkansas" (PDF). Arkansas Geological Commission Information Circular. 36: 29. Archived from the original (PDF) on 2016-12-21. Retrieved 2018-01-12.
-
^ Dane, C.H. (10 September 1926). U.S. Geological Survey Press Bulletin (8823).
{{ cite journal}}: Missing or empty|title=( help) - ^ 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 Collins, Jr., Robert J. (June 1960). Stratigraphy and Ostracoda of the Ozan, Annona, and Marlbrook Formations of southwestern Arkansas (PhD). Louisiana State University and Agricultural and Mechanical College.
- ^ Bell, Alyssa; Irwin, Kelly J.; Davis, Leo Carson (2015). "Hesperornithiform birds from the Late Creaceous (Campanian) of Arkansas, USA". Transactions of the Kansas Academy of Science. 118 (3/4): 219–229. doi: 10.1660/062.118.0305. JSTOR 24887762. S2CID 83921936 – via JSTOR.
- Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 17 December 2021.
 | This article about a specific stratigraphic formation in Arkansas is a stub. You can help Wikipedia by expanding it. |
 | This article related to the Cretaceous period is a stub. You can help Wikipedia by expanding it. |
| Ozan Formation | |
|---|---|
| Stratigraphic range: Cretaceous | |
|
Fossil
ammonites from the Ozan Formation | |
| Type | Formation |
| Sub-units | Austin Group |
| Underlies | Annona Chalk |
| Overlies | Austin Chalk, Brownstown Marl |
| Thickness | 150 to 250 feet [1] |
| Location | |
| Region | Arkansas, Oklahoma |
| Country | United States |
| Type section | |
| Named by | C.H. Dane [2] |
The Ozan Formation is a geologic formation in Arkansas, Oklahoma [1] and Texas. It preserves fossils dating back to the Cretaceous period.
Paleofauna
Ostracods
- A. ponderosana [3]
- A. dubia [3]
- B. rotunda [3]
- B. windhami [3]
- C. fabaformis [3]
- C. bicornis [3]
- C. caudata [3]
- C. communis [3]
- C. costatana [3]
- C. dallasensis [3]
- C. hannai [3]
- C. paraustinensis [3]
- C. plummeri [3]
- C. spoori [3]
- C. verricula [3]
- C. austinensis [3]
- C. blakei [3]
- H. bruceclarki [3]
- H. councilli [3]
- H. globosa [3]
- H. insolita [3]
- H. micropunctata [3]
- H. plummeri [3]
- L. fletcheri [3]
- O. hannai [3]
- P. texanus [3]
- P. saratogana [3]
- V. reesidei [3]
Avians
Outcrops
-
Annona Chalk overlying Ozan Formation at what is now called White Cliffs Natural Area, with the Little River in the foreground, Howard County, AR (c. 1910)
-
Another view of the same location (c. 1902)
See also
References
- ^ a b McFarland, John David (2004) [1998]. "Stratigraphic summary of Arkansas" (PDF). Arkansas Geological Commission Information Circular. 36: 29. Archived from the original (PDF) on 2016-12-21. Retrieved 2018-01-12.
-
^ Dane, C.H. (10 September 1926). U.S. Geological Survey Press Bulletin (8823).
{{ cite journal}}: Missing or empty|title=( help) - ^ 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 Collins, Jr., Robert J. (June 1960). Stratigraphy and Ostracoda of the Ozan, Annona, and Marlbrook Formations of southwestern Arkansas (PhD). Louisiana State University and Agricultural and Mechanical College.
- ^ Bell, Alyssa; Irwin, Kelly J.; Davis, Leo Carson (2015). "Hesperornithiform birds from the Late Creaceous (Campanian) of Arkansas, USA". Transactions of the Kansas Academy of Science. 118 (3/4): 219–229. doi: 10.1660/062.118.0305. JSTOR 24887762. S2CID 83921936 – via JSTOR.
- Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 17 December 2021.
|
| This article about a specific stratigraphic formation in Arkansas is a stub. You can help Wikipedia by expanding it. |
|
| This article related to the Cretaceous period is a stub. You can help Wikipedia by expanding it. |