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 78428: authorized by Austin Hendy, entered by Austin Hendy on 06.02.2008
Creative Commons license: CC BY (attribution)
Taxonomic list
unclassified | |
Thecostraca | |
Balanus sp. Da Costa 1778 barnacle | |
Gastropoda | |
Epitonium sp. Bolten 1798 wentletrap | |
Serpulorbis sp. Sasso 1827 worm shell | |
Naticidae indet. Guilding 1834 moon snail | |
"Gibbula" dalli Ihering 1897 top snail | |
? Fissurella sp. Bruguière 1789 snail | |
Bivalvia | |
Neilo ornata Sowerby 1846 clam | |
Nucula reticulata nut clam | |
Modiolus cf. ameghinoi Ihering 1907 mussel | |
Crassostrea cf. hatcheri Ihering 1899 oyster | |
Isognomon quadrisulcatus oyster | |
"Zygochlamys geminatus" = Zygochlamys geminata
"Zygochlamys geminatus" = Zygochlamys geminata Sowerby 1846 scallop | |
Cucullaria darwini Philippi 1887 clam | |
Pholadomya (Bucardiomya) sp. Rollier 1912 clam | |
Pholadidea patagonica Philippi 1887 clam | |
"Chione cf. meridionalis" = Chione (Chione) compta meridionalis, Chione ? patagonica
"Chione cf. meridionalis" = Chione (Chione) compta meridionalis Oldroyd 1921 venus clam
Chione ? patagonica Philippi 1887 venus clam | |
? Patagonicardium quadalensis Frassinetti and Covacevich 1999 cockle | |
? Macoma sp. Leach 1819 tellin clam | |
Panopea ? bagualesia Ihering 1907 clam | |
Solena sp. Mörch 1853 clam | |
Rhynchonellata | |
Iheringithyris sp. Levy 1961
Terebratella "sp. 1" d'Orbigny 1847
Terebratella "sp. 2" d'Orbigny 1847 | |
Lingulata | |
Discinisca sp. Gray 1840 | |
Bryozoa | |
Bryozoa sp. Ehrenberg 1831 |