Where: Chile (47.0° S, 72.4° W: paleocoordinates 47.9° S, 66.1° W)
• coordinate stated in text
• outcrop-level geographic resolution
When: Guadal Formation, Early/Lower Miocene (23.0 - 16.0 Ma)
• 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.
• bed-level stratigraphic resolution
Environment/lithology: offshore; lithified, gray sandstone
Size class: macrofossils
Preservation: cast, mold/impression
Collected by Frassinetti & Covacevich in 1986-1988
Collection methods: surface (in situ),
• COLLECTOR: Presumably Frassinetti, C., and Covacevich, C. (1986-1988). REPOSITORY: Museo Nacional de Historia Natural, Santiago, Chile
Primary reference: 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]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 78427: authorized by Austin Hendy, entered by Austin Hendy on 06.02.2008
Creative Commons license: CC BY (attribution)
Taxonomic list
Echinoidea | |
Schizaster cf. ameghinoi heart urchin | |
Polychaeta | |
Serpula sp. Linnaeus 1758 | |
Gastropoda | |
Turritella ambulacrum Sowerby 1846 turret shell | |
Naticidae indet. Guilding 1834 moon snail | |
Serpulorbis sp. Sasso 1827 worm shell | |
Semicassis ovulum Ortmann 1900 snail | |
Ficus carolinae fig shell | |
Taioma cf. tricarinata Finlay and Marwick 1937 snail | |
? Adelomelon burmeister, "Proscaphella "sp. 3"" = Miomelon
? Adelomelon burmeister volute
"Proscaphella "sp. 3"" = Miomelon Dall 1907 volute | |
Struthiolarella ameghinoi Ihering 1897 snail | |
Trochus laevis Sowerby 1846 top snail | |
Bivalvia | |
Chione argentina, "Chione cf. meridionalis" = Chione (Chione) compta meridionalis
Chione argentina venus clam
"Chione cf. meridionalis" = Chione (Chione) compta meridionalis Oldroyd 1921 venus clam | |
Trachycardium puelchum Sowerby 1846 cockle
Patagonicardium philippi cockle
Patagonicardium iheringi Frassinetti and Covacevich 1999 cockle | |
Crassatella cf. longior Ihering 1897 clam | |
Pleuromeris elegantoides Ortman 1902 clam
Cardiocardita inaequalis Philippi 1887 clam | |
Modiolus cf. ameghinoi Ihering 1907 mussel | |
""Chlamys" centralis" = Jorgechlamys centralis
""Chlamys" centralis" = Jorgechlamys centralis Sowerby 1846 scallop | |
Pinna magellanica oyster | |
Cucullaea alta Sowerby 1846 clam | |
Limopsis insolita Sowerby 1846 clam | |
Rhynchonellata | |
Iheringithyris sp. Levy 1961 | |
Bryozoa | |
Bryozoa sp. Ehrenberg 1831 | |
Malacostraca | |
Anthozoa | |
Flabellum aequalis stony coral |