Loc. 1 [Guadal Formation]: Early Miocene, Chile
collected by Frassinetti & Covacevich 1986-1988

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Thecostraca - Balanomorpha - Balanidae
Balanus sp. Da Costa 1778
Rhynchonellata - Terebratulida - Terebratellidae
Bivalvia - Nuculanida - Malletiidae
Neilo ornata (Sowerby 1846)
Bivalvia - Carditida - Carditidae
Cardiocardita inaequalis (Philippi 1887)
Bivalvia - Pholadida - Pholadidae
Pholadidea patagonica (Philippi 1887)
Bivalvia - Cardiida - Veneridae
Chione darwini (Philippi 1887)
Chione patagonica (Philippi 1887)
Bivalvia - Cardiida - Cardiidae
Bivalvia - Cardiida - Lahillidae
Lahillia sp. Cossmann 1899
Bivalvia - Cardiida - Tellinidae
Bivalvia - Pholadomyida - Pholadomyidae
Bivalvia - Hiatellida - Hiatellidae
Panopea sp. (Menard 1807)
Panopea nucleus (Ihering 1899)
Bivalvia - Solenida - Solenidae
Solena sp. Mörch 1853
Bivalvia - Arcida - Cucullaeidae
Cucullaea alta Sowerby 1846
Bivalvia - Arcida - Arcidae
Arca (Arca) patagonica (Ihering 1897)
Bivalvia - Pectinida - Pectinidae
Zygochlamys geminatus (Sowerby 1846)
"Chlamys" centralis (Sowerby 1846)
Bivalvia - Ostreida - Ostreidae
Bivalvia - Ostreida - Pinnidae
Gastropoda - Trochidae
"Gibbula" dalli Ihering 1897
Gastropoda - Vermetidae
Serpulorbis sp. Sasso 1827
Gastropoda - Ficidae
Ficus carolina (d'Orbigny 1847)
Gastropoda - Neogastropoda - Muricidae
Trophon sp. Montfort 1810
Trophon cf. patagonicus (Sowerby 1846)
Gastropoda - Neogastropoda - Volutidae
Gastropoda - Neogastropoda - Buccinidae
"Siphonalia" sp. Adams 1863
Gastropoda - Struthiolariidae
Gastropoda - Cassidae
Semicassis ovulum (Ortmann 1900)
Gastropoda - Naticidae
Naticidae indet. Guilding 1834
Gastropoda - Turritellidae
Gastropoda - Neotaenioglossa - Calyptraeidae
Trochita sp. Schumacher 1817
Calyptraea sp. Lamarck 1799
Gastropoda - Epitoniidae
Epitonium sp. Bolten 1798
Gastropoda - Opisthobranchiata - Cylichnidae
Scaphander sp. Monfort 1810
Gastropoda
Sabellida - Serpulidae
Echinoidea - Clypeasteroida - Monophorasteridae
see common names

Geography
Country:Chile
Coordinates: 47.0° South, 72.4° West (view map)
Paleocoordinates:46.3° South, 69.1° West (Wright 2013)
Basis of coordinate:stated in text
Geographic resolution:outcrop
Time
Period: Neogene Epoch: Miocene
10 m.y. bin: Cenozoic 5
Key time interval: Early Miocene
Age range of interval: 23.04 - 15.98 m.y. ago
Stratigraphy
Formation:Guadal
Stratigraphic resolution:bed
Stratigraphy comments: STRATIGRAPHIC RELATIONS: From the Guadal Fm, which is overlain by the Galera Fm (Early-Middle Miocene). AGE: Late Oligocene-Early Miocene in text. Composition of the fauna reveals close similarity with those of the Patagoniano, and in particular the Monte Leon Fm. An Early Miocene age could be moe precise on the basis of sequence stratigraphic events. Early Miocene is assigned here. STRATIGRAPHIC POSITION: From upper part of the Guadal Formation.
Lithology and environment
Primary lithology:gray lithified sandstone
Includes fossils?Y
Lithology description: SPECIFIC LITHOLOGY: Dark gray sandstone. LITHIFICATION: Lithified, on the basis of figured specimens.
Environment:offshore
Geology comments: ENVIRONMENT: Siliciclastic, and not particularly shallow (i.e. lower inner-middle shelf) based on faunal compisition.
Taphonomy
Modes of preservation:body,cast,mold/impression
Size of fossils:macrofossils
Preservation of anatomical detail:poor
Collection methods and comments
Collection methods:surface (in situ),field collection
Reason for describing collection:taxonomic analysis
Collectors:Frassinetti & Covacevich Collection dates:1986-1988
Collection method comments: COLLECTOR: Presumably Frassinetti, C., and Covacevich, C. (1986-1988). REPOSITORY: Museo Nacional de Historia Natural, Santiago, Chile
Taxonomic list comments:COVERAGE: Exhaustive for gastropoda, bivalvia, anthozoa, bryozoa, brachiopoda, annelida, arthropoda, and echinodermata. NOMENCLATURE: Authoritative publication with taxonomic assignments to species-resolution.
Metadata
Database number:78425
Authorizer:A. Hendy Enterer:A. Hendy
Research group:marine invertebrate
Created:2008-02-06 17:32:13 Last modified:2025-02-22 15:12:02
Access level:authorizer only Released:2009-02-06 17:32:12
Creative Commons license:CC0
Reference information

Primary reference:
26388. D. Frassinetti and V. Covacevich. 1999. Invertibrados fósiles marinos de la Formación Guadal (Oligoceno superio-Mioceno inferior) en Pampa, Castillo region, región de Aisén, Chile. Servico Nacional de Geologia y Mineria Chile Boletin 51:1-96 [A. Hendy/A. Hendy]