PBDB Collection

5N - Perfil Punta Nava (Oligocene of Argentina)

Where: Santa Cruz, Argentina (47.1° S, 66.4° W: paleocoordinates 48.3° S, 58.5° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Monte León Formation, Late/Upper Oligocene (28.4 - 23.0 Ma)

Environment/lithology: offshore; lithified siltstone

• Se habría depositado en un ambiente marino de poca energía probablemente de plataforma interna.

• El espesor sedimentario estudiado comprende 72 metros de pelitas y areniscas fosilíferas, bioturbadas en el sector inferior (PN), comparables con las reconocidas en el perfil Mazarredo, y tobas y chonitas blanquecinas en el superior (F).

Size class: microfossils

• Other: Palynomorphs

Preservation: soft parts, original sporopollenin

Collection methods: bulk, chemical, hydrochloric, hydroflouric,

• Repositorio: Palinoteca del Centro de Investigaciones en Recursos Geológicos (CIRGEO)

Primary reference: V. Barreda and S. Palamarczuk. 2000. Palinoestratigrafía de depósitos del Oligoceno tardío-Mioceno en el área sur del Golfo San Jorge, provincia de Santa Cruz, Argentina. Ameghiniana 37(1):103-117 [C. Jaramillo/J. Ceballos/P. Santamarina]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 142154: authorized by Carlos Jaramillo, entered by Juliana Ceballos on 06.04.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names

unclassified
-	Operculodium centrocarpum Operculodium centrocarpum
Prasinophytae
-	Tasmanites spp. Tasmanites spp. Newton 1875
Ginkgoopsida
Ephedrales -	Equisetosporites claricristatus Equisetosporites claricristatus Barreda 1997
Magnoliopsida
-	Rhoipites cienaguensis Rhoipites cienaguensis Barreda 1997
Angiospermae
Caryophyllales - Chenopodiaceae	Chenopodipollis chenopodiaceoides Chenopodipollis chenopodiaceoides Truswell 1985
Chloranthales - Chloranthaceae	Clavatipollenites sp. Clavatipollenites sp. Couper 1958
Sapindales - Sapindaceae	Cupanieidites reticularis Cupanieidites reticularis Cookson and Pike 1954 soapberry
Fabales - Fabaceae	Margocolporites tenuireticulatus Margocolporites tenuireticulatus Barreda 1997 legume
Polypodiopsida
-	Verrucosisporites kopukuensis Verrucosisporites kopukuensis Stover 1973
Mutisiapollis
-	Mutisiapollis viteauensis Mutisiapollis viteauensis Barreda 1998
Dinophyceae
Peridiniales - Peridiniaceae	Brigantedinium sp. Brigantedinium sp. Reid 1977
Peridiniales - Protoperidiniaceae	Selenopemphix sp., Selenopemphix warriensis, Selenopemphix cf. crenata, Lejeunecysta communis, Lejeunecysta globosa, Lejeunecysta pulchra Selenopemphix sp. Benedek 1972 Selenopemphix warriensis Biffi and Grignani 1983 Selenopemphix cf. crenata Matsuoka and Bujak 1988 Lejeunecysta communis Biffi and Grignani 1983 Lejeunecysta globosa Biffi and Grignani 1983 Lejeunecysta pulchra Biffi and Grignani 1983
Peridiniales -	Tuberculodinium vancampoae Tuberculodinium vancampoae Wall 1967
Canthiumidites bellus
-	Canthiumidites aff. bellus Canthiumidites aff. bellus Mildenhall and Pocknall 1989