Ankazomihaboka Formation: Difference between revisions
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| caption = |
| caption = |
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| type = [[Geological formation]] |
| type = [[Geological formation]] |
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| age = |
| age = [[Coniacian]]<br />~{{fossil range|89|86}} |
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| period = Coniacian |
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| prilithology = [[Claystone]], [[sandstone]] |
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| otherlithology = |
| otherlithology = |
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| namedfor = |
| namedfor = |
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| namedby = |
| namedby = |
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| region = |
| region = [[Boeny]], [[Mahajanga Province]] |
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| country = |
| country = {{MAD}} |
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| coordinates = |
| coordinates = {{coord|16.2|S|46.7|E|display=inline,title}} |
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| paleocoordinates = {{coord|34.9|S|37.8|E|display=inline}} |
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| unitof = |
| unitof = |
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| subunits = |
| subunits = |
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| underlies = |
| underlies = [[Marovoay Beds]] |
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| overlies = |
| overlies = [[Basalt]] |
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| thickness = |
| thickness = |
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| extent = |
| extent = [[Mahajanga Basin]] |
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| area = |
| area = |
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| map = |
| map = {{Location map+ | Madagascar |
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| relief = 1 |
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| width = 160 |
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| float = center |
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| caption = Location of the formation in Madagascar |
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| places = |
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{{Location map~ | Madagascar |
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| lat_deg = -16.2 |
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| lon_deg = 46.7 |
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| mark = Lightgreen pog.svg |
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| marksize = 12 |
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}} |
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}} |
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| map_caption = |
| map_caption = |
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}} |
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The '''Ankazomihaboka Formation''' is a [[ |
The '''Ankazomihaboka Formation''' is a [[Coniacian]] geologic [[Formation (geology)|formation]] in the [[Mahajanga Basin]] of northwestern [[Madagascar]]. The formation comprises [[claystone]]s and [[sandstone]]s deposited in a [[fluvial]] to [[lacustrine]] [[depositional environment|environment]].<ref name=MAD96>[https://paleobiodb.org/classic/displayCollResults?collection_no=46897 MAD 96] at [[Fossilworks]].org</ref> The formation is overlain by the [[Marovoay Beds]] and overlies [[basalt]].<ref name=Rogers2000_p280>Rogers et al., 2000, p.280</ref> |
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[[Dinosaur]] remains diagnostic to the [[genus]] level are among the fossils that have been recovered from the formation.<ref>Weishampel, et al. (2004). "Dinosaur distribution" Pp. 517-607. in Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. 861 pp. {{ISBN|0-520-24209-2}}. " Pp. 517-607.</ref> |
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==Paleofauna== |
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== Fossil content == |
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* "Titanosaurus" madagascariensis |
* "Titanosaurus" madagascariensis |
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* Majungasaurus crenatissimus (theropod indet) |
* ''[[Majungasaurus|Majungasaurus crenatissimus]]'' (theropod indet.) |
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* ''[[Axelrodichthys|Axelrodichthys sp.]]''<ref name=MAD96/> |
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* ''[[Ceratodus (genus)|Ceratodus madagascariensis]]''<ref name=MAD96/> |
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==See also== |
== See also == |
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* [[List of dinosaur-bearing rock formations]] |
* [[List of dinosaur-bearing rock formations]] |
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** [[List of stratigraphic units with few dinosaur genera]] |
** [[List of stratigraphic units with few dinosaur genera]] |
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* [[List of fossiliferous stratigraphic units in Madagascar]] |
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* [[Geology of Madagascar]] |
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== |
== References == |
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{{Portal box|Earth sciences|Paleontology|Dinosaurs||}} |
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{{Reflist}} |
{{Reflist}} |
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=== Bibliography === |
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==References== |
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* {{citation |last1=Rogers |first1=Raymond R. |last2=Hartman |first2=Joseph H. |last3=Krause |first3=David W. |year=2000 |title=Stratigraphic Analysis of Upper Cretaceous Rocks in the Mahajanga Basin, Northwestern Madagascar: Implications for Ancient and Modern Faunas |url=https://www.researchgate.net/publication/12547766 |journal=[[Journal of Geology]] |volume=108 |issue=3 |pages=275–301 |doi=10.1086/314403 |pmid=10769157 |bibcode=2000JG....108..275R |accessdate=2018-08-30}} |
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* Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. 861 pp. ISBN 0-520-24209-2. |
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| ⚫ | |||
[[Category:Formations with 2 dinosaur genera]] |
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== Further reading == |
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* Curry, K. A. 1997. Vertebrate fossils from the Upper Cre-taceous Ankazomihaboka Sandstones, Mahajanga Ba-sin, Madagascar. J. Vertebr. Paleontol. 17(suppl.):40A |
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* M. D. Gottfried, R. R. Rogers, and K. A. Curry Rogers. 2004. First record of Late Cretaceous coelacanths from Madagascar. Recent Advances in the Origin and Early Radiation of Vertebrates, in G. Arratia, M. V. H. Wilson, and R. Cloutier (eds.), Verlag Dr. Friedrich Pfeil, München 687-691 |
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[[Category:Geologic formations of Madagascar]] |
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{{geologic-formation-stub}} |
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[[Category:Upper Cretaceous Series of Africa]] |
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[[Category:Cretaceous Madagascar]] |
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[[Category:Coniacian Stage]] |
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| ⚫ | |||
[[Category:Sandstone formations]] |
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[[Category:Fluvial deposits]] |
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[[Category:Lacustrine deposits]] |
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[[Category:Paleontology in Madagascar]] |
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[[Category:Mahajanga Province|Formations]] |
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Latest revision as of 15:53, 18 November 2024
| Ankazomihaboka Formation | |
|---|---|
| Stratigraphic range: Coniacian ~ | |
| Type | Geological formation |
| Underlies | Marovoay Beds |
| Overlies | Basalt |
| Lithology | |
| Primary | Claystone, sandstone |
| Location | |
| Coordinates | 16°12′S 46°42′E / 16.2°S 46.7°E |
| Approximate paleocoordinates | 34°54′S 37°48′E / 34.9°S 37.8°E |
| Region | Boeny, Mahajanga Province |
| Country |  Madagascar |
| Extent | Mahajanga Basin |
  Location of the formation in Madagascar | |
The Ankazomihaboka Formation is a Coniacian geologic formation in the Mahajanga Basin of northwestern Madagascar. The formation comprises claystones and sandstones deposited in a fluvial to lacustrine environment.[1] The formation is overlain by the Marovoay Beds and overlies basalt.[2]
Dinosaur remains diagnostic to the genus level are among the fossils that have been recovered from the formation.[3]
Fossil content
[edit]- "Titanosaurus" madagascariensis
- Majungasaurus crenatissimus (theropod indet.)
- Axelrodichthys sp.[1]
- Ceratodus madagascariensis[1]
See also
[edit]- List of dinosaur-bearing rock formations
- List of fossiliferous stratigraphic units in Madagascar
- Geology of Madagascar
References
[edit]- ^ a b c MAD 96 at Fossilworks.org
- ^ Rogers et al., 2000, p.280
- ^ Weishampel, et al. (2004). "Dinosaur distribution" Pp. 517-607. in Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. 861 pp. ISBN 0-520-24209-2. " Pp. 517-607.
Bibliography
[edit]- Rogers, Raymond R.; Hartman, Joseph H.; Krause, David W. (2000), "Stratigraphic Analysis of Upper Cretaceous Rocks in the Mahajanga Basin, Northwestern Madagascar: Implications for Ancient and Modern Faunas", Journal of Geology, 108 (3): 275–301, Bibcode:2000JG....108..275R, doi:10.1086/314403, PMID 10769157, retrieved 2018-08-30
Further reading
[edit]- Curry, K. A. 1997. Vertebrate fossils from the Upper Cre-taceous Ankazomihaboka Sandstones, Mahajanga Ba-sin, Madagascar. J. Vertebr. Paleontol. 17(suppl.):40A
- M. D. Gottfried, R. R. Rogers, and K. A. Curry Rogers. 2004. First record of Late Cretaceous coelacanths from Madagascar. Recent Advances in the Origin and Early Radiation of Vertebrates, in G. Arratia, M. V. H. Wilson, and R. Cloutier (eds.), Verlag Dr. Friedrich Pfeil, München 687-691