Cocholgüe (locality CO, beds with concretions): Late/Upper Maastrichtian, Chile
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Cephalopoda
- Ammonitida
- Baculitidae
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Baculites anceps
Lamarck 1822
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Baculites huenickeni
Stinnesbeck 1986
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Eubaculites carinatus
(Morton 1834)
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Cephalopoda
- Ammonitida
- Kossmaticeratidae
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Kossmaticeras (Natalites) erbeni
Stinnesbeck 1986
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| (1 measurement) | ||||||||||
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Maorites densicostatus
(Kilian and Reboul 1909)
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| (1 measurement) | ||||||||||
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Gunnarites cf. bhavaniformis
(Kilian and Reboul 1909)
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Grossouvrites joharae
Salazar et al. 2010
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| (2 measurements) | ||||||||||
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Cephalopoda
- Ammonitida
- Pachydiscidae
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Pachydiscus (Pachydiscus) gutierrezi
Salazar et al. 2010
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Pachydiscus (Pachydiscus) jacquoti
(Seunes 1890)
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| ssp. chilensis (2 measurements) | ||||||||||
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Cephalopoda
- Ammonitida
- Desmoceratidae
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Kitchinites ifrimae n. sp.
Salazar et al. 2010
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| (4 measurements) | ||||||||||
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Kitchinites darwini
(Steinmann 1895)
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| (7 measurements) | ||||||||||
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Cephalopoda
- Ammonitida
- Tetragonitidae
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Zelandites varuna
(Forbes 1846)
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| (4 measurements) | ||||||||||
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Gaudryceras kayei
(Forbes 1846)
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| (1 measurement) | ||||||||||
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= Gaudryceras seymouriense
Macellari 1986
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Shigeta and Maeda 2023 | |||||||||
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Anagaudryceras politissimum
(Kossmat 1895)
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| (1 measurement) | ||||||||||
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= Anagaudryceras mikobokense
Collignon 1956
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Shigeta and Maeda 2023 | |||||||||
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Anagaudryceras subtilineatum
(Kossmat 1895)
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| (2 measurements) | ||||||||||
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Pseudophyllites indra
(Forbes 1846)
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| (1 measurement) | ||||||||||
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Cephalopoda
- Phylloceratida
- Phylloceratidae
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Hypophylloceras (Neophylloceras) hetonaiense
(Matsumoto 1942)
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| (7 measurements) | ||||||||||
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Hypophylloceras (Neophylloceras) ramosum
(Meek 1857)
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| (8 measurements) | ||||||||||
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Cephalopoda
- Nautilida
- Nautilidae
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Eutrephoceras dorbignyanum
(Forbes 1846)
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Nielsen and Salazar 2011 | |||||||||
| (2 measurements) | ||||||||||
| see common names | ||||||||||
Geography
| Country: | Chile |
| Coordinates: | 36.6° South, 73.0° West (view map) |
| Paleocoordinates: | 38.6° South, 60.9° West |
| Basis of coordinate: | estimated from map |
| Geographic resolution: | outcrop |
Time
| Period: | Cretaceous | Epoch: | Late/Upper Cretaceous |
| Stage: | Maastrichtian | 10 m.y. bin: | Cretaceous 8 |
| Key time interval: | Late/Upper Maastrichtian | ||
| Age range of interval: | 72.10000 - 66.00000 m.y. ago |
Stratigraphy
| Formation: | Quiriquina | ||||
| Stratigraphic resolution: | group of beds | ||||
| Stratigraphy comments: Beds with calcareous sandstone concretions, roughly equivalent to Kitchinites darwini subzone | |||||
Lithology and environment
| Primary lithology: | lithified sandstone |
| Environment: | marine indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Reason for describing collection: | taxonomic analysis |
| Collection method comments: Repository: CPUC (Colección Paleontológica de la Universidad de Concepción) | |
Metadata
| Database number: | 165491 | ||
| Authorizer: | M. Clapham | Enterer: | M. Clapham, K. Okamoto |
| Modifier: | M. Uhen | Research group: | marine invertebrate |
| Created: | 2015-01-19 19:50:29 | Last modified: | 2020-10-05 16:21:59 |
| Access level: | the public | Released: | 2015-01-19 19:50:29 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 54096. | C. Salazar, W. Stinnesbeck, and L. A. Quinzio-Sinn. 2010. Ammonites from the Maastrichtian (Upper Cretaceous) Quiriquina Formation in central Chile. Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen 257:181-236 [M. Clapham/M. Clapham/M. Clapham] |
Secondary references:
| 54113 | S. N. Nielsen and C. Salazar. 2011. Eutrephoceras subplicatum (Steinmann, 1895) is a junior synonym of Eutrephoceras dorbignyanum (Forbes in Darwin, 1846) (Cephalopoda, Nautiloidea) from the Maastrichtian Quiriquina Formation of Chile. Cretaceous Research 32(6):833-840 [M. Clapham/K. Okamoto] | |
| 83762 | Y. Shigeta and H. Maeda. 2023. Late Maastrichtian (latest Cretaceous) ammonoids from the Naiba area, southern Sakhalin, Russian Far East. Paleontological Research 27:277-309 [M. Clapham/M. Clapham] |