Stratigraphic range: Burdigalian (Colhuehuapian) ~19.8–17.5 Ma
PreꞒ
Ꞓ
O
S
D
C
P
T
J
K
Pg
N
↓
Gaiman Formation stratigraphy at Cerro Castillo
Type
Geological formation
Underlies
Puerto Madryn Formation
Overlies
Sarmiento Formation
Thickness
70 m (230 ft)
Lithology
Primary
Mudstone, sandstone
Other
Tuff, phosphate
Location
Coordinates
43°18′S65°18′W / 43.3°S 65.3°W / -43.3; -65.3
Approximate paleocoordinates
44°00′S59°12′W / 44.0°S 59.2°W / -44.0; -59.2
Region
Chubut Province
Country
Argentina
Extent
Peninsula Valdés Basin
Type section
Named for
Gaiman
Named by
Mendía & Bayarsky
Year defined
1981
Gaiman Formation (Argentina)
The Gaiman Formation (Spanish: Formación Gaiman), in older literature also referred to as Patagonian Marine Formation (Spanish: Formación Patagonia Marino, Patagoniense), is a fossiliferous geologic formation of the Peninsula Valdés Basin in the eastern Chubut Province of northwestern Patagonia, eastern Argentina.
The 70 metres (230 ft) thick formation overlies the Sarmiento Formation and is overlain by the Puerto Madryn Formation and comprises grey and white tuffaceous mudstones and sandstones, deposited in a shallow marine environment.
The Gaiman Formation has provided fossils of many extinct penguins, among which five species in the genus Palaeospheniscus, as well as whales and dolphins, most notably Aondelphis talen, Prosqualodon australis, Idiorophus patagonicus and Argyrocetus patagonicus, indeterminate seal and turtle fossils, shark and other fossils. The richness of the formation, and the other formations in the area, such as the underlying Sarmiento Formation, led to the establishment of the Bryn Gwyn Paleontological Park [es], with a Welsh name, reflecting the number of Welsh settlers in the region.
The GaimanFormation (Spanish: Formación Gaiman), in older literature also referred to as Patagonian Marine Formation (Spanish: Formación Patagonia Marino...
family Physeteridae. Fossils have been found in the Colhuehuapian GaimanFormation of Argentina and the Libano Sandstone in Italy. The teeth of Idiorophus...
David Bernard Gaiman (10 June 1933 – 7 March 2009) was a British businessman and head of the UK branch of Church of Scientology. He and his wife Sheila...
have been found in: Neogene GaimánFormation, Argentina Berchem, Diest and Sables d'Anvers Formations, Belgium Navidad Formation, Chile Mont-de-Marsan and...
and Chubut Provinces of Patagonia, Argentina, in the Gaiman, Monte León and Santa Cruz Formations of Early to Middle Miocene age. Later occurrences are...
species have been recovered from the Early to Middle Miocene Gaiman and Puerto Madryn Formations and the El Foyel Group. Known localities are Trelew in Chubut...
New Specimen of Cayaoa bruneti Tonni (Aves, Anseriformes) from the GaimanFormation (Early Miocene, Chubut, Argentina)". Ameghiniana. 55 (4): 483–488....
Aglaocetus have been found in: Miocene GaimánFormation (Colhuehuapian-Santacrucian), Argentina Diest and Berchem Formations, Belgium Eibergen Member, Netherlands...
MLP 5-4) lacking the earbones, which was found in the Colhuehuapian GaimanFormation of Chubut Province, Argentina. Subsequent authors either followed Cabrera...
known from several dozen bones, found in Early Miocene rocks of the GaimánFormation. Documented locations are near La Cueva, Trelew in Chubut Province...
Early Miocene strata of the GaimanFormation. The specimens from known localities were collected near Trelew and Gaiman in Chubut Province, Argentina...
Formation (Late Eocene to Early Oligocene) of Patagonia. Other authors report a younger age for the fossils recovered from the Early Miocene Gaiman and...
from the early Miocene (Burdigalian) Castillo Formation of Venezuela and the Gaimán and Monte León Formations of Argentina Prosqualodon davidis Flynn, 1923;...
Miocene (Burdigalian and Colhuehuapian in the SALMA classification) GaimanFormation of Patagonia, Argentina. Morenocetus is distinguished from more derived...
3341 and 3346) (Simpson 1946) from the Early Miocene GaimanFormation which were found near Gaiman in Chubut Province, Argentina. It was the size of a...
were found in the Early Miocene GaimanFormation; those that have locality data are from the area around Trelew and Gaiman in Chubut Province, Argentina...
holotype and referred specimen of Prosqualodon australis from the Miocene GaimanFormation (Argentina) and a study on the phylogenetic relationships of this species...
The Sarmiento Formation (Spanish: Formación Sarmiento), in older literature described as the Casamayor Formation, is a geological formation in Chubut Province...
They are from the Early Miocene GaimanFormation. The specimens from known localities were collected near Trelew and Gaiman in Chubut Province, Argentina...
representing a new genus and species, is described from the Miocene GaimanFormation (Argentina) by Piro & Acosta Hospitaleche (2021). A study on the anatomy...
She adapted and did the art for the short story "Troll Bridge" by Neil Gaiman, which also became a New York Times bestseller. Her books have received...
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