Late Emsian/Eifelian Loc. 19a of Melo: Picos region, Lower Pimenteira Formation (Devonian to of Brazil)

Where: Piaui, Brazil (7.0° S, 42.0° W)

• Paleocoordinates: 65.6° S, 11.3° W (Wright 2013)

• coordinate estimated from map

• local area-level geographic resolution

When: Pimenteira Formation, Emsian to Emsian (410.6 - 387.9 Ma)

• "Although the age of the [Pimenteira Fm.] is probably restricted to the Middle Devonian along the eastern outcrop belt [of which this locality is a part] its full range is Emsian through Famennian in the subsurface of central portions of the basin."

• member-level stratigraphic resolution

Environment/lithology: marine; sandstone and siltstone

• See lithology description.
• "The Pimenteira Fm. records the first widespread Devonian transgression over the Parnaiba Basin and conformably overlies the Itaim Mbr. It consists of interlayered sandstones and siltstones/shales mostly deposited as offshore bars or shelf sediments under the influence of storm generated waves and currents ("tempestites"), as indicated by the widespread development of large scale hummocky cross stratification throughout the section."

Primary reference: J. H. G. Melo. 1988. The Malvinokaffric realm in the Devonian of Brazil. In N. J. McMillan, A. F. Embry, D. J. D. J. Glass (eds.), Devonian of the World, Volume I 669-703 [M. Foote/M. Foote/M. Foote]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 37126: authorized by Michael Foote, entered by Michael Foote on 03.03.2004

Creative Commons license: CC0 (CC0)

Taxonomic list

Show authors, comments, and common names
unclassified
  -
Devoncanthus sp., Plantae indet.
Plantae indet. Haeckel 1866
Chondrichthyes
 Ctenacanthiformes - Ctenacanthidae
? Ctenacanthus sp.
? Ctenacanthus sp. Agassiz 1836 cartilaginous fish
Acanthodii
  - Machaeracanthidae
? Machaeracanthus sp.
? Machaeracanthus sp. Newberry 1857 spiny fish
Bivalvia
  -
"Pelecypoda indet." = Bivalvia
"Pelecypoda indet." = Bivalvia Linnaeus 1758 clam
 Protobranchia - Malletiidae
? Palaeoneilo sp.
? Palaeoneilo sp. Hall and Whitfield 1869 clam
 Protobranchia - Cucullellidae
Nuculites sp.
Nuculites sp. Conrad 1841 clam
 Cyrtodontida - Cyrtodontidae
? Ptychodesma sp.
? Ptychodesma sp. Hall and Whitfield 1872 clam
 Cardiidia - Grammysiidae
? Grammysia sp.
? Grammysia sp. de Verneuil 1847 clam
Gastropoda
 Bellerophontida - Plectonotidae
Plectonotus sp.
Plectonotus sp. Clarke 1899 snail
Tentaculita
  - Tentaculitidae
Tentaculites sp.
Tentaculites sp. von Schlotheim 1820
Hyolitha
 Hyolithida - Hyolithidae
"Hyolithes" sp.
"Hyolithes" sp. d'Eichwald 1840
Lingulata
 Lingulida - Lingulidae
? Lingula sp.
? Lingula sp. Bruguiére 1797
Strophomenata
 Productida - Chonetidae
? Notiochonetes sp.
Rhynchonellata
 Rhynchonellida - Eatoniidae
"Clarkeia" sp.
"Clarkeia" sp. rhynchonellid brachiopod
 Spiriferida -
"Spiriferacea indet." = Spiriferoidea
"Spiriferacea indet." = Spiriferoidea King 1846
 Terebratulida - Meganterididae
? Derbyina sp.
Ostracoda
 Podocopida - Bairdiidae
? Bairdia sp.
? Bairdia sp. M'Coy 1844 ostracod
Artiopoda
 Phacopida - Calmoniidae
Metacryphaeus sp.
Metacryphaeus sp. Reed 1907 trilobite
 Ichnofossils -
Nereites sp.
Nereites sp. MacLeay 1839