Late Emsian/Eifelian Loc. 26 of Melo: Curua River (Devonian to of Brazil)

Where: Para, Brazil (1.0° S, 55.0° W: paleocoordinates 69.6° S, 33.7° W)

• coordinate estimated from map

• local area-level geographic resolution

When: Lontra Member (Maecuru Formation), Emsian to Emsian (407.6 - 387.7 Ma)

• member-level stratigraphic resolution

Environment/lithology: marine; sandstone and bioturbated siltstone

• Deposition reflects deepening. See lithology description.
• "The Maecuru Fm. of Emsian/Eifelian age is composed by the Jatapu and Lontra members...Jatapu [consists of] bioturbated silty/shaly layers and argillaceous sandstones...Fluvial sandstones and conglomerates are the main constituents of the Lontra unit. However, locally on the N flank and throughout the subsurface the uppermost Lontra sediments are shallow marine "tempestites", i.e. hummocky cross-stratified sandstones containing the well known Devonian invertebrate fauna recorded by pioneer workers from outcrops of the Maecuru and Curua rivers."

Primary reference: J. H. G. Melo. 1988. The Malvinokaffric realm in the Devonian of Brazil. N. J. McMillan, A. F. Embry, and D. J. Glass, eds. Devonian of the World, Volume I. Canadian Society of Petroleum Geologists. Calgary, Alberta, Canada 669-703 [M. Foote/M. Foote/M. Foote]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 37138: authorized by Michael Foote, entered by Michael Foote on 03.03.2004, edited by Pete Wagner

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Ostreida - Pterineidae
Leptodesma (Leiopteria) sp., "Ptychopteria (Actinopteria) sp." = Actinopteria
"Ptychopteria (Actinopteria) sp." = Actinopteria Hall 1884 oyster
Gastropoda
 Euomphalina - Platyceratidae
Platyceras (Platyceras) sp. Conrad 1840 snail
Platyceras (Platyostoma) sp. Conrad 1842 snail
 Bellerophontida -
Bellerophontoidea indet. M'Coy 1851 snail
Crinoidea
  -
Crinoidea indet. Miller 1821 Sea lily
Lophophorata
 Tentaculitida - Tentaculitidae
Tentaculites sp. von Schlotheim 1820
Strophomenata
 Productida - Anopliidae
 Productida -
"Chonetacea "gen.nov. A"" = Chonetoidea, "Chonetacea indet." = Chonetoidea
"Chonetacea "gen.nov. A"" = Chonetoidea Bronn 1862
"Chonetacea indet." = Chonetoidea Bronn 1862
"various definite species"
 Orthotetida - Schuchertellidae
 Strophomenida - Leptostrophiidae
Rhynchonellata
 Terebratulida - Centronellidae
 Terebratulida - Meganterididae
? Podolella sp., "? Paranaia sp." = Derbyina
? Podolella sp.
"possibly Cranaena"
"? Paranaia sp." = Derbyina
 Spiriferinida - Cyrtinidae
? Cyrtina sp. Davidson 1858
" 'Spirifer' maecuruensis Rathbun 1879"
 Spiriferida -
"Spiriferacea indet." = Spiriferoidea
"Spiriferacea indet." = Spiriferoidea King 1846
"various definite species"
 Spiriferida - Ambocoeliidae
 Spiriferida - Mucrospiriferidae
? Mucrospirifer sp. Grabau 1931
"mostly 'Spirifer' pedroanus Rathbun 1874 and related forms"
 Rhynchonellida - Camarotoechiidae
? Camarotoechia sp. Hall and Clarke 1893
 Rhynchonellida - Rhynchonellidae
"Rhynchonella" sp. Fischer 1809
  - Tropidoleptidae
 Orthida - Rhipidomellidae
Discomyorthis sp. Johnson 1970
 Orthida - Platyorthidae
 Ichnofossils -
Spirophyton sp. Hall 1863