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

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