La Gachupina: Kimmeridgian, Mexico

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Gastropoda - Aporrhaidae
Harpagodes oceani (Brongniart 1821)
(3 measurements)
Gastropoda - Purpurinidae
? Purpuroidea acatlana Alencaster and Buitron 1965
(1 measurement)
Gastropoda - Naticidae
? Natica cf. hemispherica Romer 1836
(1 measurement)
Gastropoda - Heterostropha - Nerineidae
Nerinea gachupinae n. sp. Alencaster 1977
(4 measurements)
Bivalvia - Pectinida - Anomiidae
Placunopsis sp. Morris and Lycett 1853
(2 measurements)
Bivalvia - Mytilida - Mytilidae
Inoperna cf. perplicata (Etallon 1863)
(1 measurement)
Bivalvia - Lucinida - Lucinidae
Mesomiltha portlandica (Sowerby 1836)
(2 measurements)
Lucina cf. radiata Contejean 1859
(1 measurement)
Bivalvia - Pholadida - Ceratomyidae
? Gresslya sp. Agassiz 1843
(1 measurement)
? Ceratomya sp. Sandberger 1864
(3 measurements)
Bivalvia - Pholadida - Pleuromyidae
Pleuromya tellina Agassiz 1842
(3 measurements)
Bivalvia - Cardiida - Corbiculidae
Eocallista (Eocallista) brongniarti (Romer 1836)
(3 measurements)
Eocallista pulchella (Loriol and Pellat 1868)
(1 measurement)
Bivalvia - Cardiida - Cardiidae
Protocardia dufrenoyca (Buvignier 1852)
(2 measurements)
Protocardia cf. pesolina Contejean 1859
(1 measurement)
Bivalvia - Cardiida - Tancrediidae
Tancredia (Tancredia) cf. subcurtansata Lycett 1853
(1 measurement)
Bivalvia - Carditida - Crassatellidae
Ptychomya stantoni Cragin 1905
(2 measurements)
Bivalvia - Nuculanida - Nuculanidae
Nuculana sp. Link 1807
(1 measurement)
Rhynchonellata - Terebratulida - Postepithyrididae
Sellithyris subsella (Leymerie 1846)
recombined as Loboidothyris subsella
(4 measurements)
see common names

Geography
Country:Mexico State/province:Chiapas
Coordinates: 16.7° North, 93.5° West (view map)
Paleocoordinates:10.2° North, 45.8° West
Basis of coordinate:based on nearby landmark
Geographic resolution:outcrop
Time
Period:Jurassic Epoch:Late/Upper Jurassic
Stage:Kimmeridgian 10 m.y. bin:Jurassic 5
Key time interval:Kimmeridgian
Age range of interval:157.30000 - 152.10000 m.y. ago
Stratigraphy
Formation:San Ricardo
Stratigraphic resolution:group of beds
Lithology and environment
Primary lithology: lithified "limestone"
Secondary lithology: lithified marl
Environment:shallow subtidal indet.
Taphonomy
Modes of preservation:body,cast,mold/impression
Size of fossils:macrofossils
Collection methods and comments
Collection methods:field collection
Reason for describing collection:taxonomic analysis
Metadata
Database number:98672
Authorizer:W. Kiessling Enterer:U. Merkel
Research group:marine invertebrate
Created:2010-10-18 02:27:31 Last modified:2010-10-18 04:27:31
Access level:the public Released:2010-10-18 02:27:31
Creative Commons license:CC BY
Reference information

Primary reference:

34040. G. Alencaster. 1977. Moluscos y braquiopodos del Jurasico superior de Chiapas [Upper Jurassic molluscs and brachiopods from Chiapas]. Revista mexicana de ciencias geologicas 1(2):151-166 [W. Kiessling/U. Merkel/M. Manojlovic]