Late Emsian/Eifelian Loc. 20 of Melo: Pimenteiras region (Devonian to of Brazil)

Where: Piaui, Brazil (6.2° S, 41.4° W: paleocoordinates 79.9° S, 8.2° E)

• coordinate based on political unit

• local area-level geographic resolution

When: Pimenteira Formation, Emsian to Emsian (407.6 - 387.7 Ma)

• Collection not explicitly said to come from Pimenteira Fmn., but this seems rather clear from stratigraphic and geographic context.

•"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."

• formation-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. 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 37129: authorized by Michael Foote, entered by Michael Foote on 03.03.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Trilobita
 Phacopida - Calmoniidae
Metacryphaeus sp. Reed 1907 trilobite
 Phacopida - Homalonotidae
Burmeisteria sp. Salter 1865 trilobite
Ostracoda
 Palaeocopida - Beyrichiidae
? Kloedenia sp. Jones and Holl 1886 ostracod
Gastropoda
  -
Gastropoda indet. Cuvier 1797 snail
Rhynchonellata
 Terebratulida - Cranaenidae
? Cranaena sp. Hall and Clarke 1893
 Terebratulida - Meganterididae
 Rhynchonellida -
Lingulata
 Lingulida - Disciniidae
Orbiculoidea sp. d'Orbigny 1847
 Lingulida - Lingulidae
? Lingula sp. BruguiƩre 1797
Scyphozoa
 Conulariida - Conulariidae
Conularia sp. jellyfish
unclassified
  -
Plantae indet. Haeckel 1866