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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 upper member is 210 m thick in the vicinity of the CD-9 locality.<ref>{{Cite journal|last=WINKLER|first=DALE A.|last2=GOMANI|first2=ELIZABETH M.|last3=JACOBS|first3=LOUIS L.|date=2000|title=COMPARATIVE TAPHONOMY OF AN EARLY CRETACEOUS SAUROPOD QUARRY, MALAWI, AFRICA|url=https://www.researchgate.net/publication/274082885_Comparative_taphonomy_of_an_Early_Cretaceous_sauropod_quarry_Malawi_Africa?enrichId=rgreq-cb76b109d3983a6f608fe5d533c6b907-XXX&enrichSource=Y292ZXJQYWdlOzI3NDA4Mjg4NTtBUzoyMTE2OTIwMDE3MzA1NjBAMTQyNzQ4MjcxNDY5NQ%3D%3D&el=1_x_2&_esc=publicationCoverPdf|journal=Paleont. Soc. Korea Special Publication|volume=4|pages=99-114|via=}}</ref>
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 composed of deep red stained sandstones, and a upper fossiliferous member composed 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.<ref>{{Cite journal|last=WINKLER|first=DALE A.|last2=GOMANI|first2=ELIZABETH M.|last3=JACOBS|first3=LOUIS L.|date=2000|title=COMPARATIVE TAPHONOMY OF AN EARLY CRETACEOUS SAUROPOD QUARRY, MALAWI, AFRICA|url=https://www.researchgate.net/publication/274082885_Comparative_taphonomy_of_an_Early_Cretaceous_sauropod_quarry_Malawi_Africa?enrichId=rgreq-cb76b109d3983a6f608fe5d533c6b907-XXX&enrichSource=Y292ZXJQYWdlOzI3NDA4Mjg4NTtBUzoyMTE2OTIwMDE3MzA1NjBAMTQyNzQ4MjcxNDY5NQ%3D%3D&el=1_x_2&_esc=publicationCoverPdf|journal=Paleont. Soc. Korea Special Publication|volume=4|pages=99-114|via=}}</ref>


==Vertebrate paleofauna==
==Vertebrate paleofauna==

Revision as of 02:32, 16 July 2018

Dinosaur Beds
Stratigraphic range: Barremian–Aptian
TypeGeological formation
Unit ofLupata Group
Sub-unitsLower Member, Upper Member
UnderliesUnconformity with Pliocene Chiwondo Beds
OverliesPrecambrian Metamorphic Basement
ThicknessUpper member is 210 m thick in vicinity of CD-9 locality
Lithology
PrimarySandstone, Siltstone, Mudstone
Location
Coordinates10°17′S 34°02′E / 10.28°S 34.04°E / -10.28; 34.04
RegionNorthern Region
Country Malawi
ExtentKaronga 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 composed of deep red stained sandstones, and a upper fossiliferous member composed 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.[3]

Vertebrate paleofauna

  • Karongasaurus gittelmani - A lower mandible and a few teeth
  • Malawisaurus dixeyi - "Skull elements, teeth, vertebrae, limb elements osteoderms, of several individuals."[4]
  • Malawisuchus mwakasyungutiensis - A skeleton (almost complete articulated skeleton and skull)
  • Platycheloides nyasae - A partial shell
  • Theropoda indet.

See also

References

  1. ^ 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)
  2. ^ 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.
  3. ^ WINKLER, DALE A.; GOMANI, ELIZABETH M.; JACOBS, LOUIS L. (2000). "COMPARATIVE TAPHONOMY OF AN EARLY CRETACEOUS SAUROPOD QUARRY, MALAWI, AFRICA". Paleont. Soc. Korea Special Publication. 4: 99–114.
  4. ^ "Table 13.1," in Weishampel, et al. (2004). Page 269.

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