| 词条 | Itombe Formation |
| 释义 |
| name = Itombe Formation | period = Turonian | age = Turonian ~{{fossilrange|90}} | image = | imagesize = | caption = | type = Geological formation | prilithology = Shale | otherlithology = Limestone, siltstone, sandstone | unitof = | subunits = Tadi Beds | underlies = N'Golome Marl | overlies = Cabo Ledo & Massangano Formations | thickness = up to {{Convert|600|m|ft|abbr=on}} | location = | coordinates = {{coord|8.2|S|13.2|E|display=inline,title}} | paleocoordinates = {{coord|23.0|S|1.4|E|display=inline}} | region = Bengo | country = {{ANG}} | extent = Kwanza Basin | area = | map = {{Location map+ | Angola | relief = 1 | width = 250 | float = center | places = | lat_deg = -8.2 | lon_deg = 13.2 | mark = Lightgreen pog.svg | marksize = 12 }} | map_caption = }} The Itombe Formation is a geological formation of the Kwanza Basin in Angola dating back to the Turonian stage of the Late Cretaceous. The environment of deposition is shallow marine. Reptile fossils have been recovered from the Tadi beds locality within the formation, including the dinosaur Angolatitan,[1] the mosasaurs Angolasaurus and Mosasaurus iembeensis and the turtle Angolachelys.[2]. Itombe formation was considered Turonian in age, but new data suggests to be Coniacian[3]. See also{{portal|Geology|Cretaceous|Angola|Prehistory of Africa}}
References1. ^{{Cite journal |last=Mateus |first=Octávio |last2=Jacobs |first2=Louis L. |last3=Schulp |first3=Anne S. |last4=Polcyn |first4=Michael J. |last5=Tavares |first5=Tatiana S. |last6=Buta Neto |first6=André |last7=Morais |first7=Maria Luísa |last8=Antunes |first8=Miguel T. |date=March 2011 |title=Angolatitan adamastor, a new sauropod dinosaur and the first record from Angola |url=http://www.scielo.br/scielo.php?script=sci_abstract&pid=S0001-37652011000100012&lng=en&nrm=iso&tlng=en |journal=Anais da Academia Brasileira de Ciências |volume=83 |issue=1 |pages=221–233 |doi=10.1590/S0001-37652011000100012 |issn=0001-3765}} 2. ^{{Cite journal |last=Mateus |first=Octávio |last2=Jacobs |first2=Louis |last3=Polcyn |first3=Michael |last4=Schulp |first4=Anne S. |last5=Vineyard |first5=Diana |last6=Buta Neto |first6=André |last7=Telles Antunes |first7=Miguel |date=December 2009 |title=The Oldest African Eucryptodiran Turtle from the Cretaceous of Angola |url=http://www.app.pan.pl/article/item/app20080063.html |journal=Acta Palaeontologica Polonica |language=en |volume=54 |issue=4 |pages=581–588 |doi=10.4202/app.2008.0063 |issn=0567-7920}} 3. ^{{cite web |last1=Mateus |first1=Octávio |last2=Callapez |first2=Pedro M. |last3=Polcyn |first3=Michael J. |last4=Schulp |first4=Anne S. |last5=Gonçalves |first5=António Olímpio |last6=Jacobs |first6=Louis L. |title=The Fossil Record of Biodiversity in Angola Through Time: A Paleontological Perspective |url=https://link.springer.com/chapter/10.1007/978-3-030-03083-4_4 |website=Biodiversity of Angola: Science & Conservation: A Modern Synthesis |publisher=Springer International Publishing |pages=53–76 |language=en |doi=10.1007/978-3-030-03083-4_4 |date=2019}} Further reading
9 : Geologic formations of Angola|Cretaceous System of Africa|Late Cretaceous Africa|Turonian Stage|Shale formations|Shallow marine deposits|Fossiliferous stratigraphic units of Africa|Paleontology in Angola|Bengo Province |
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