Dinosaur Beds: Difference between revisions
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| region = [[Northern Region]] |
| region = [[Northern Region]] |
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| country = {{flag|Malawi}} |
| country = {{flag|Malawi}} |
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| coordinates = |
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| unitof = [[Lupata Group]] |
| unitof = [[Lupata Group]] |
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| subunits =Lower Member, Upper Member |
| subunits =Lower Member, Upper Member |
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| coordinates = {{Coord|10.28|S|34.04|E|display=inline}} |
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| underlies = |
| underlies = Unconformity with [[Pliocene]] [[Chiwondo Beds]] |
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| overlies = |
| overlies = [[Precambrian]] [[Metamorphic]] [[Basement (geology)|Basement]] |
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| thickness = |
| thickness = Upper member is 210 m thick in vicinity of CD-9 locality |
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| extent = [[Karonga District]] |
| extent = [[Karonga District]] |
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| area = |
| area = |
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The '''Dinosaur Beds''' is a geological [[Formation (geology)|formation]] in Malawi whose strata date back to the [[Early Cretaceous]]. The age of the deposit is poorly constrained, but is likely to date from the [[Barremian]] to [[Aptian]].<ref>{{Cite journal|last=Widlansky|first=Sarah J.|last2=Clyde|first2=William C.|last3=O'Connor|first3=Patrick M.|last4=Roberts|first4=Eric M.|last5=Stevens|first5=Nancy J.|date=2018-03|title=Paleomagnetism of the Cretaceous Galula Formation and implications for vertebrate evolution|url=https://linkinghub.elsevier.com/retrieve/pii/S1464343X17304545|journal=Journal of African Earth Sciences|volume=139|pages=403–420|doi=10.1016/j.jafrearsci.2017.11.029|issn=1464-343X}}</ref> Dinosaurs, turtles and crocodyliomorphs remains are among the fossils that have been recovered from the formation.<ref name="cretaceousdistribution">Weishampel, David B; et al. (2004). "Dinosaur distribution (Early Cretaceous, Africa)." In: Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. Pp. 571-573. {{ISBN|0-520-24209-2}}.</ref> It is correlated with the [[Galula Formation]] in [[Tanzania]]. It consists of two members, a lower unfossiliferous member comprised of deep red stained sandstones, and a upper fossiliferous member comprised of white sands and grey to red mudstones and siltstones. |
The '''Dinosaur Beds''' is a geological [[Formation (geology)|formation]] in Malawi whose strata date back to the [[Early Cretaceous]]. The age of the deposit is poorly constrained, but is likely to date from the [[Barremian]] to [[Aptian]].<ref>{{Cite journal|last=Widlansky|first=Sarah J.|last2=Clyde|first2=William C.|last3=O'Connor|first3=Patrick M.|last4=Roberts|first4=Eric M.|last5=Stevens|first5=Nancy J.|date=2018-03|title=Paleomagnetism of the Cretaceous Galula Formation and implications for vertebrate evolution|url=https://linkinghub.elsevier.com/retrieve/pii/S1464343X17304545|journal=Journal of African Earth Sciences|volume=139|pages=403–420|doi=10.1016/j.jafrearsci.2017.11.029|issn=1464-343X}}</ref> Dinosaurs, turtles and crocodyliomorphs remains are among the fossils that have been recovered from the formation.<ref name="cretaceousdistribution">Weishampel, David B; et al. (2004). "Dinosaur distribution (Early Cretaceous, Africa)." In: Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. Pp. 571-573. {{ISBN|0-520-24209-2}}.</ref> It is correlated with the [[Galula Formation]] in [[Tanzania]]. It consists of two members, a lower unfossiliferous member comprised of deep red stained sandstones, and a upper fossiliferous member comprised of white sands and grey to red mudstones and siltstones. The upper member is 210 m thick in the vicinity of the CD-9 locality. |
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==Vertebrate paleofauna== |
==Vertebrate paleofauna== |
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Revision as of 10:48, 15 July 2018
| Dinosaur Beds | |
|---|---|
| Stratigraphic range: | |
| Type | Geological formation |
| Unit of | Lupata Group |
| Sub-units | Lower Member, Upper Member |
| Underlies | Unconformity with Pliocene Chiwondo Beds |
| Overlies | Precambrian Metamorphic Basement |
| Thickness | Upper member is 210 m thick in vicinity of CD-9 locality |
| Lithology | |
| Primary | Sandstone, Siltstone, Mudstone |
| Location | |
| Coordinates | 10°17′S 34°02′E / 10.28°S 34.04°E |
| Region | Northern Region |
| Country |  Malawi |
| Extent | Karonga District |
The Dinosaur Beds is a geological formation in Malawi whose strata date back to the Early Cretaceous. The age of the deposit is poorly constrained, but is likely to date from the Barremian to Aptian.[1] Dinosaurs, turtles and crocodyliomorphs remains are among the fossils that have been recovered from the formation.[2] It is correlated with the Galula Formation in Tanzania. It consists of two members, a lower unfossiliferous member comprised of deep red stained sandstones, and a upper fossiliferous member comprised of white sands and grey to red mudstones and siltstones. The upper member is 210 m thick in the vicinity of the CD-9 locality.
Vertebrate paleofauna
- Karongasaurus gittelmani - A lower mandible and a few teeth
- Malawisaurus dixeyi - "Skull elements, teeth, vertebrae, limb elements osteoderms, of several individuals."[3]
- Malawisuchus mwakasyungutiensis - A skeleton (almost complete articulated skeleton and skull)
- Platycheloides nyasae - A partial shell
- Theropoda indet.
See also
References
- ^ Widlansky, Sarah J.; Clyde, William C.; O'Connor, Patrick M.; Roberts, Eric M.; Stevens, Nancy J. (2018-03). "Paleomagnetism of the Cretaceous Galula Formation and implications for vertebrate evolution". Journal of African Earth Sciences. 139: 403–420. doi:10.1016/j.jafrearsci.2017.11.029. ISSN 1464-343X.
{{cite journal}}: Check date values in:|date=(help) - ^ Weishampel, David B; et al. (2004). "Dinosaur distribution (Early Cretaceous, Africa)." In: Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. Pp. 571-573. ISBN 0-520-24209-2.
- ^ "Table 13.1," in Weishampel, et al. (2004). Page 269.
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