Where: Panama, Panama (9.1° N, 78.8° W: paleocoordinates 8.9° N, 77.5° W)
When: Chucunaque Formation, Late/Upper Miocene (11.6 - 5.3 Ma)
• From the text "In much of the Darien Province, the Chucunaque Formation of Shelton (1952) is Messinian in age (7.1–5.6 Ma), although Coates et al. (2004) suggested that it could be older than 9.4 Ma in the western part of their study area on the basis of calcareous nannofossil biostratigraphy. This age is consistent with 87Sr/86Sr dates of 10–9.5 Ma derived from calcerous Lindapectin shells that were deposited in association with the chondrichthyan remains"
Environment/lithology: deep subtidal shelf; lithified, silty, sandy lithology not reported
Size class: microfossils
Primary reference: V. J. Perez, C. Pimiento, A. Hendy, G. González-Barba, G. Hubbell and B. J. MacFadden. 2017. Late Miocene chondrichthyans from Lago Bayano, Panama: Functional diversity, environment and biogeography. Journal of Paleontology 91(3):512-547 [C. Jaramillo/C. Pimiento]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 191996: authorized by Catalina Pimiento, entered by Jaime Villafana on 27.02.2018
Creative Commons license: CC BY (attribution)
Taxonomic list
Chondrichthyes | |
Rhinoptera sp. Cuvier 1829 cownose ray | |
Isurus oxyrinchus Rafinesque 1810 mackerel shark | |
"Carcharocles megalodon" = Otodus megalodon
"Carcharocles megalodon" = Otodus megalodon Agassiz 1835 megalodon | |
Alopias superciliosus Lowe 1840 thresher shark | |
Hemipristis serra Agassiz 1835 ground shark | |
Physogaleus contortus, Carcharhinus brevipinna, Carcharhinus spp., Carcharhinus plumbeus, Carcharhinus obscurus
Physogaleus contortus Gibbes 1847 requiem shark
Carcharhinus brevipinna requiem shark
Carcharhinus spp. de Blainville 1816 requiem shark
Carcharhinus plumbeus Nardo 1827 requiem shark
Carcharhinus obscurus Le Sueur 1818 requiem shark | |
Galeocerdo cuvier Peron and LeSueur 1822 tiger shark
Galeocerdo aduncus Agassiz 1835 tiger shark | |
Sphyrna zygaena Linnaeus 1758 hammerhead shark |