Severn Formation
| Severn Formation | |
|---|---|
Stratigraphic range: | |
| Type | Geological formation |
The Severn Formation is a Mesozoic geologic formation in Maryland. Dinosaur remains diagnostic to the genus level are among the fossils that have been recovered from the formation.[1]
Paleofauna
Dinosaurs
- "Coelosaurus" antiquus[2]
- Ornithomimidae indet.[3]
- Hadrosauridae indet.[2][3]
Plesiosaurs
Mosasaurs
- Halisaurus platyspondylus[4][2]
- Prognathodon rapax[2]
- Mosasaurus hoffmanni[2]
- Mosasaurus sp.[3]
- cf. Mosasaurus conodon[2]
- Mosasauridae indet.[2]
Crocodylomorphs
Turtles
Chondrichthyans
- Carcharias holmdelensis[3]
- Carcharias samhammeri[3]
- Chiloscyllium greeni[3]
- Cretalamana appendiculata[3]
- Dasyatis sp.[3]
- Tomewingia problematica[3]
- Galeorhinus garadoti[3]
- Ginglymostoma sp.[3]
- Heterodontus sp.[3]
- Hybodus sp.[3]
- Ischyrhiza cf. avonicola[3]
- Ischyrhiza mira[3]
- Myliobatis sp.[3]
- Odontaspis aculeatus[3]
- Plicatoscyllium antiquum[3]
- Plicatoscyllium derameei[3]
- Pseudohypolophus mcnultyi[3]
- Ptychotrygon vermiculata[3]
- Raja farishi[3]
- Rhinobatos sp.[3]
- Rhombodus binkhorsti[3]
- Serratolamna serrata[3]
- Squalicorax kaupi[3]
- Squalicorax pristodontus[3]
- Squatina hassei[3]
- Ischyodus sp.[3]
Osteichthyans
- Albuidae indet.[3]
- Anomoedus cf. haseolus[3]
- Cylinadracanthus sp.[3]
- Egertonia sp.[3]
- Enchodus ferox[3]
- Hadrodus sp.[3]
- Lepidosteus sp.[3]
- Paralbula casei[3]
See also
Lua error in mw.title.lua at line 346: bad argument #2 to 'title.new' (unrecognized namespace name 'Portal').
Footnotes
- ^ Weishampel, et al. (2004). "Dinosaur distribution." Pp. 517-607.
- ^ 2.00 2.01 2.02 2.03 2.04 2.05 2.06 2.07 2.08 2.09 2.10 2.11 2.12 Baird, Donald (1986). "Upper Cretaceous Reptiles from the Severn Formation of Maryland". The Mosasaur. 3: 63–85.
- ^ 3.00 3.01 3.02 3.03 3.04 3.05 3.06 3.07 3.08 3.09 3.10 3.11 3.12 3.13 3.14 3.15 3.16 3.17 3.18 3.19 3.20 3.21 3.22 3.23 3.24 3.25 3.26 3.27 3.28 3.29 3.30 3.31 3.32 3.33 3.34 3.35 3.36 3.37 3.38 3.39 3.40 3.41 Hartstien, Eugene F; Decina, Lawrence E; Keil, Ronald F (1999). "A Late Cretaceous (Severn Formation) Vertebrate Assemblage from Bowie, Maryland". The Mosasaur. 6: 17–23.
- ^ Holmes, Robert B.; Sues, Hans-Dieter (2000). "A Partial Skeleton of the Basal Mosasaur Halisaurus platyspondylus from the Severn Formation (Upper Cretaceous: Maastrichtian) of Maryland". Journal of Paleontology. 74 (2): 309–316. JSTOR 1306908.
References
- Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. 861 pp. ISBN 0-520-24209-2.
 | This article about a specific stratigraphic formation in the United States is a stub. You can help Wikipedia by expanding it. |