Where: Puntarenas, Costa Rica (8.9° N, 83.1° W: paleocoordinates 8.9° N, 83.1° W)
• coordinate stated in text
• small collection-level geographic resolution
When: Curré Formation, Hemphillian (10.3 - 4.9 Ma)
• Age: Late Hemphillian (Hh3) (Late Miocene), Curré Formation, San Gerardo de Limoncito, Costa Rica. 87Sr/86Sr 5.80 Ma +/- 0.60/-0.80
•
•The rock unit that contains the fossiliferous remains corresponds to the Curré Formation. Henningsen (1965) defines this formation as a series of tuffaceous sandstones with intercalations of conglomerates, siltstones and occasionally shales, dark green and brownish green when altered. Mora (1979), describes two subunits according to their sedimentological characteris- tics: The subunit of volcaniclastic conglomerates of gray-green color, overlain by shales that settled in a transitional environ- ment between delta and beach. The subunit of black shales, interspersed with strata of sandstones and fine conglomerates, was deposited in a paralic environment of estuary or swamp type. They are very chloritized and basically consist of subvolcanic products.
•The paleontological material recovered is housed at the Geology Section of the Natural History Department at The National Museum of Costa Rica, and comes from a level of fine conglomerate that is located towards the roof of a sequence of blue clays, which in turn is overlain by a sequence of medium to fine sandstones, which confirms its association with the superior subunit or subunit of shales (sensu Mora, 1979). Granados and Aguilar (1983), based on the presence of molluscs, obtained a Middle-Late Miocene age for the Curré Formation.
•
• group of beds-level stratigraphic resolution
Environment/lithology: deltaic; conglomerate
Size class: macrofossils
Primary reference: C. A. Laurito and A. L. Valerio. 2008. The first record of Gavialosuchus americanus Sellards (1915)† (Eusuchia: Crocodylidae, Tomistominae) for the Late Tertiary of Costa Rica and Central America. Revista Geológica de América Central 39:107-115 [P. Mannion/P. Mannion]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 144596: authorized by Philip Mannion, entered by Philip Mannion on 13.05.2013, edited by Evangelos Vlachos, Juan Carrillo, Miranta Kouvari and Grace Varnham
Creative Commons license: CC BY (attribution)
Taxonomic list
Chondrichthyes | |
| |
| |
| |
| |
| |
| |
"Isurus desorii" = Isurus oxyrinchus2
| |
Mammalia | |
Dinohippus mexicanus1, "Calippus (Grammohippus) hondurensis" = Calippus hondurensis1, Protohippus gidleyi1
| |
| |
"Hemiauchenia vera" = Pleiolama vera5
| |
Scirrotherium antelucanus n. sp.4
| |
Zacatzontli cotobrusensis n. sp.10 Valerio et al. 2022 edentate Holotype: CFM-2916; CFM-2917, first upper molariform; CFM-1000, molarifiorm. CFM-1000 and CFM-2917 were previously referred to as Pliometanastes cf. protistus
| |
Sibotherium ka n. gen. n. sp.7
| |
| |
| |
Reptilia | |
| |
| |
"Gavialosuchus americana" = Thecachampsa sericodon
"Gavialosuchus americana" = Thecachampsa sericodon Cope 1867 crocodilian CFM-1793 (jaw fragments), CFM-1792 (jaw fragment) and CFM-960, 972, 1774, 1912, 1913, 1916 & 1923 (osteoderms)
| |
Actinopteri | |
| |
|