Also known as PGAP 503
Where: Chubut, Argentina (43.7° S, 69.7° W: paleocoordinates 41.6° S, 28.6° W)
• coordinate estimated from map
When: Osta Arena Formation (Pampa de Agnia Group), Toarcian to Toarcian (182.7 - 170.3 Ma)
• Age assigned by Stipanicic and Bonetti (1970a). Osta Arena Fmn. grades laterally into the Cabeza de Cristiano Fmn. (Herbst 1966b)
Environment/lithology:
Size class: macrofossils
Collection methods: Baldoni (1987) lists additional genera to those given by Stipanicic and Bonetti (1970a)
Primary reference: P.N. Stipanicic and M.I.R. Bonetti. 1970. Posiciones estratigraficas y edades de las principales floras jurasicas argentinas. I. Floras liasicas. Ameghiniana 7(1):57-78 [A. Rees/A. Rees]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 29370: authorized by Allister Rees, entered by Allister Rees on 02.04.2003
Creative Commons license: CC BY (attribution)
Taxonomic list
Scleropteris | |
Scleropteris "sp. 1" Saporta 1872
Scleropteris "sp. 2" Saporta 1872 | |
Polypodiopsida | |
Cladophlebis "sp. 1" Brongniart 1849
Cladophlebis "sp. 2" Brongniart 1849
Cladophlebis "sp. 3" Brongniart 1849 | |
Thaumatopteris "sp. 1" Goeppert 1841 | |
Coniopteris "sp. 1" Brongniart 1849 scaly tree fern | |
Otozamites "sp. 1" Braun 1843
Otozamites "sp. 2" Braun 1843
Otozamites "sp. 3" Braun 1843
Otozamites "sp. 4" Braun 1843
Otozamites "sp. 5" Braun 1843 | |
Ginkgoopsida | |
Sagenopteris "sp. 1" Presl 1838 | |
Ginkgoites | |
Ginkgoites "sp. 1" Seward 1919 | |
Equisetopsida | |
Brachyphyllum "sp. 1" Brongniart 1828 |