Where: Argentina (42.6° S, 64.3° W: paleocoordinates 42.8° S, 61.9° W)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Puerto Madryn Formation, Late/Upper Miocene (11.6 - 5.3 Ma)
• STRATIGRAPHIC RELATIONS: From the Puerto Madryn Fm, which unconformably overlies the Gaiman Fm (Early Miocene). THICKNESS: From a 6.5 m thick bed within 95 m thick section. Formation reaches a maximum thickness of 150 m. AGE: Middle Miocene according to del Rio (1992) on the basis of generic affinities with Middle Miocene Caribbean faunas. Regarded as Late Miocene by del Rio (2004). STRATIGRAPHIC POSITION: From near top of section.
• bed-level stratigraphic resolution
Environment/lithology: coastal; lithified, shelly/skeletal, gray, silty sandstone
Size class: macrofossils
Collection methods: COLLECTOR: C. J. del Rio (between 1982 and 1987). REPORSITORY: CPBA; Universidad de Buenos Aires. Ciudad Universitaria, Pabellon II, Buenos Aires, Argentina.
Primary reference: C. J. del Rio. 1992. Middle Miocene bivalves of the Puerto Madryn Formation, Valdes Peninsule, Chubut Province, Argentina (Nuculidae-Pectinidae): Part 1. Palaeontographica Abteilung A 225:1-58 [A. Hendy/A. Hendy]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 71564: authorized by Austin Hendy, entered by Austin Hendy on 29.04.2007
Creative Commons license: CC BY (attribution)
Taxonomic list
Bivalvia | |
Dinocardium novus n. sp.
Dinocardium novus n. sp. cockle | |
Ameghinomya meridionalis, Anomalocardia (Anomalocardia) entrerriana, Dosinia (Dosinia) cuspidata n. sp., Chionopsis (Chionopsis) australis n. sp., Pitar (Pitar) laziarina
Ameghinomya meridionalis Sowerby 1846 venus clam
Anomalocardia (Anomalocardia) entrerriana venus clam
Dosinia (Dosinia) cuspidata n. sp. venus clam
Chionopsis (Chionopsis) australis n. sp. venus clam
Pitar (Pitar) laziarina venus clam | |
"Spisula (Mactromeris) longa n. sp." = Mactromeris
"Spisula (Mactromeris) longa n. sp." = Mactromeris clam | |
Pteromyrtea danieli clam |