Cerro Calquinhue (Triassic of Chile)

Where: Chile (37.1° S, 72.9° W: paleocoordinates 53.8° S, 39.8° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Santa Juana Formation, Carnian (237.0 - 228.0 Ma)

• "Facies 4" (Nielsen 2005)

• group of beds-level stratigraphic resolution

Environment/lithology: fluvial; siltstone and mudstone

• "On the basis of the occurrence of ripple marks and well-rounded conglomerates, as well as the relationship with other facies, deposition is interpreted to have taken place near the shores of lakes or river banks or on inactive, muddy, vegetated overbank areas between sandy river channels." (Nielsen 2005)
• "Facies 4 comprises silt- and mudstones that contain a rich flora. A diverse association of ferns and gymnosperms was recovered mainly from outcrops at the Cerro Calquinhue, where few distinct sedimentary structures, mostly parallel bedding and occasionally ripple marks, are preserved. Some conglomerates with well-rounded, well-sorted clasts of predominantly metamorphic origin occur." (Nielsen 2005)

Size class: macrofossils

Primary reference: S. N. Nielsen. 2005. The Triassic Santa Juana Formation at the lower Biobío River, south central Chile. Journal of South American Earth Sciences 19:547-562 [A. Dunhill/B. Allen]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 201288: authorized by Alex Dunhill, entered by Bethany Allen on 04.05.2019

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Gymnospermopsida
 Corystospermales - Corystospermaceae
Dicroidium elongatum, Dicroidium crassinervis
Dicroidium elongatum Carruthers 1872
forma remotipinnulum; subsp. argentinum
Dicroidium crassinervis Geinitz 1876
forma trilobitum
Gnetopsida
  -
Gontriglossa reinerae n. sp.
Gontriglossa reinerae n. sp. Nielsen 2005
Pinopsida
 Pinales -
Heidiphyllum elongatum
Voltziopsida
 Voltziales - Voltziaceae
Telemachus elongatus
Telemachus elongatus Anderson 1978
 Bennettitales -
"Pseudoctenis santajuanensis n. sp." = Pterophyllum santajuanensis
"Pseudoctenis santajuanensis n. sp." = Pterophyllum santajuanensis Nielsen 2005
Polypodiopsida
 Marattiales - Marattiidae
Asterotheca fuchsii
Asterotheca fuchsii Schimper 1875
 Gleicheniales - Polypodiidae
Dictyophyllum fuenzalidai, Dictyophyllum tenuifolium, Thaumatopteris rothii
Dictyophyllum tenuifolium Stipanicic and Menendez 1949
Thaumatopteris rothii Frenguelli 1941
 Polypodiales - Polypodiidae
Saportaea dichotoma
Saportaea dichotoma Frenguelli 1942
  - Gleicheniaceae
Gleichenites sp.
Gleichenites sp. Göppert 1836
Kurtziana cacheutensis
  -
Kurtziana cacheutensis
Ginkgoopsida
 Ginkgoales -
Sphenobaiera africana
Sphenobaiera africana Baldoni 1980
  -
Linguifolium steinmannii
Linguifolium steinmannii Solms-Laubach 1899