Where: Para, Brazil (2.0° S, 54.0° W: paleocoordinates 68.9° S, 29.4° W)
• coordinate estimated from map
• local area-level geographic resolution
When: Alpenachitina eisenacki other zone, Lontra Member (Maecuru Formation), Eifelian (393.3 - 387.7 Ma)
• Member spans Emsian - Eifelian, but the dense beds of shelly fossils are from the top of the formation (Grahn 2005).
• member-level stratigraphic resolution
Environment/lithology: marine; sandstone and bioturbated siltstone
Size class: macrofossils
Preservation: cast
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 37137: authorized by Michael Foote, entered by Michael Foote on 03.03.2004, edited by Pete Wagner
Creative Commons license: CC BY (attribution)
Taxonomic list
Anthozoa | |
Pleurodictyum sp. Goldfuss 1829 tabulate coral | |
Chondrichthyes | |
? Machaeracanthus sp. Newberry 1857 spiny fish | |
Pteraspidomorpha | |
? Pteraspis sp. Kner 1847 | |
Crinoidea | |
Crinoidea indet. Miller 1821 Sea lily | |
? Ctenocrinus sp. Bronn 1840 Sea lily | |
Gastropoda | |
Bellerophontoidea indet. M'Coy 1851 snail | |
Plectonotus sp. Clarke 1899 snail
Ptomatis sp. Clarke 1899 snail | |
"Bucania" sp. Hall 1847 snail | |
? Bucanella sp. Meek 1871 snail | |
Platyceras (Platyceras) sp., "Platyceras (Platyostoma) sp." = Platyostoma
Platyceras (Platyceras) sp. Conrad 1840 snail
"Platyceras (Platyostoma) sp." = Platyostoma Conrad 1842 snail | |
Bivalvia | |
Nuculoidea sp. Williams and Berger 1916 nut clam | |
Nuculites sp. Conrad 1841 clam | |
Palaeoneilo sp. Hall and Whitfield 1869 clam | |
Toechomya sp. clam | |
"Sphenotus" sp. Hall 1884 clam
Cimitaria sp. Hall and Whitfield 1869 clam
? Grammysioidea sp. Williams 1916 clam
Grammysia sp. de Verneuil 1847 clam | |
Modiomorpha sp. Hall and Whitfield 1869 clam
? Guerangeria sp. Oehlert 1880 clam | |
? Cypricardella sp. Hall 1856 clam | |
"Ptychopteria (Actinopteria) sp." = Actinopteria, Leptodesma (Leiopteria) sp.
"Ptychopteria (Actinopteria) sp." = Actinopteria Hall 1884 oyster
Leptodesma (Leiopteria) sp. Hall 1883 oyster | |
Pseudaviculopecten sp. Newell 1938 scallop | |
Lophophorata | |
Tentaculites sp. von Schlotheim 1820 | |
Strophomenata | |
Megastrophia sp., ""Stropheodonta" sp." = Strophomena (Strophodonta)
Megastrophia sp. Caster 1939
""Stropheodonta" sp." = Strophomena (Strophodonta) Hall 1852 | |
"Chonetacea "gen.nov. A"" = Chonetoidea, "Chonetacea indet." = Chonetoidea
"Chonetacea "gen.nov. A"" = Chonetoidea Bronn 1862 | |
Protoleptostrophia sp. Caster 1939 | |
"Schuchertella" sp. Girty 1904 | |
Rhynchonellata | |
? Cyrtina sp. Davidson 1858 | |
Discomyorthis sp. Johnson 1970 | |
"Spiriferacea indet." = Spiriferoidea
| |
| |
Acrospirifer sp. Wedekind 1926 | |
"? Paranaia sp." = Derbyina, ? Podolella sp.
"? Paranaia sp." = Derbyina | |
"Rhynchonella" sp. Fischer 1809 | |
? Camarotoechia sp. Hall and Clarke 1893 | |
Bryozoa | |
Bryozoa indet. Ehrenberg 1831 | |
Polychaeta | |
Tentaculita | |
Styliolina sp. Karpinsky 1884 | |
Trilobita | |
| |
Phacopida indet. Salter 1864 trilobite | |
"Dalmanites" sp. Barrande 1852 trilobite " 'Dalmanites' (gen.indet., cf. Odontochile or Gamonedaspis)"
| |
? Trimerus sp. Green 1832 trilobite |