Demopolis Chalk
Template:Short description Template:Infobox Rockunit The Demopolis Chalk is a geological formation in North America, within the U.S. states of Alabama, Mississippi, and Tennessee. The chalk was formed by pelagic sediments deposited along the eastern edge of the Mississippi embayment during the middle Campanian age of the Late Cretaceous.[1] It is a unit of the Selma Group and consists of the upper Bluffport Marl Member and a lower unnamed member.[2] Dinosaur and mosasaur remains are among the fossils that have been recovered from the Demopolis Chalk.[2][3]
Vertebrate paleofauna
Fish
Cartilaginous fish
| Cartilaginous fish of the Demopolis Chalk Formation | ||||
|---|---|---|---|---|
| Genus | Species | Presence | Notes | Images |
|
Chimaeriformes indet.[4] |
| |||
|
An otodontid | ||||
|
S. texanus[4] |
||||
|
S. serrata?[4] |
A lamniform shark | |||
|
S. kaupi[4] |
||||
|
S. sp.[4] | ||||
Bony fish
| Bony fish of the Demopolis Chalk Formation | ||||
|---|---|---|---|---|
| Genus | Species | Presence | Notes | Images |
|
E. ferox[4] |
| |||
|
E. gladiolus[4] | ||||
|
E. petrosus[4] | ||||
|
P. sp.[4] |
||||
|
S. sp.[4] |
||||
|
S. sp.[4] |
An aulopiform | |||
|
X. vetus[5] |
||||
Reptiles
Dinosaurs
Indeterminate hadrosaurid remains have been found in Tennessee.[3] Possible indeterminate tyrannosaurid remains have been found in Alabama.[3]
| Dinosaurs of the Demopolis Chalk Formation | ||||
|---|---|---|---|---|
| Genus | Species | Presence | Notes | Images |
|
| ||||
Crocodylians
| Crocodylians of the Demopolis Chalk Formation | ||||
|---|---|---|---|---|
| Genus | Species | Presence | Notes | Images |
|
B. sp.[4] |
An eusuchian |
| ||
Mosasaurs
| Mosasaurs of the Demopolis Chalk | ||||
|---|---|---|---|---|
| Genus | Species | Presence | Notes | Images |
|
C. propython[4] |
| |||
|
H. sp.[4] |
||||
|
M. cf. missouriensis[4] | ||||
|
P. cf. somenensis[4] |
||||
|
P. sp. nov.[7] |
Mississippi[6] | |||
|
T. sp.[4] |
||||
Turtles
| Turtles of the Demopolis Chalk | ||||
|---|---|---|---|---|
| Genus | Species | Presence | Notes | Images |
|
A. parhami[8] |
Geographically present in Alabama and Mississippi.[8] |
A marine ctenochelyid turtle |
| |
|
C. barberi[4] |
||||
|
C. cf. tennuitesta[4] |
||||
|
P. matutina?[4] |
||||
|
P. gigas[4] |
||||
See also
Script error: No such module "Portal".
References
<templatestyles src="Reflist/styles.css" />
- ↑ a b c Script error: No such module "Citation/CS1".
- ↑ a b c d e f Script error: No such module "Citation/CS1".
- ↑ a b c d e f Weishampel, David B; et al. (2004). "Dinosaur distribution (Late Cretaceous, North America)." In: Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. Pp. 574-588. Template:ISBN.
- ↑ 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 Script error: No such module "Citation/CS1".
- ↑ Script error: No such module "Citation/CS1".
- ↑ a b c Script error: No such module "Citation/CS1".
- ↑ Script error: No such module "citation/CS1".
- ↑ a b Script error: No such module "Citation/CS1".
Script error: No such module "Check for unknown parameters".