Ammonite Unit Cenomanian 4, Sergipe Basin (Cretaceous of Brazil)

Where: Brazil (10.8° S, 37.1° W: paleocoordinates 17.4° S, 11.4° W)

• coordinate estimated from map

• basin-level geographic resolution

When: Cotinguiba Formation, Late/Upper Cenomanian (99.6 - 93.5 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: open shallow subtidal; shelly/skeletal limestone and calcareous breccia

Size class: macrofossils

Preservation: cast

Collection methods: A total of 604 localities in the Segripe Basin has been sampled, though the occurences can't be assigend to a specific locality

Primary reference: P. Bengtson. 1983. The Cenomanian-Coniacian of Sergipe Basin, Brazil. Fossil and Strata (12)1-78 [M. Aberhan/T. Schossleitner]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 140840: authorized by Martin Aberhan, entered by Thomas Schossleitner on 18.03.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

Echinoidea
 Holasteroida - Holasteridae
 Spatangoida - Hemiasteridae
"Hemiaster jacksoni" = Mecaster batnensis
"Hemiaster jacksoni" = Mecaster batnensis Coquand 1862 heart urchin
 Salenioida - Saleniidae
Salenia sp. Gray 1835 sea urchin
Gastropoda
 Cerithioidea - Turritellidae
"Turritella (Haustator) carregozica" = Haustator
"Turritella (Haustator) carregozica" = Haustator turret shell
 Sorbeoconcha - Aporrhaidae
"Pterocera (Dicroloma) aff. decussata" = Dicroloma
"Pterocera (Dicroloma) aff. decussata" = Dicroloma snail
listed as Pterocera (Dicroloma?) aff. decussata
 Heterostropha - Ringiculidae
Ringinella pinguiscula White 1887 snail
Bivalvia
 Myalinida - Inoceramidae
 Ostreida - Gryphaeidae
"Exogyra (Costagyra) olisiponensis" = Costagyra olisiponensis, "Exogyra (Rhynchostreon) columba" = Rhynchostreon suborbiculatum
"Exogyra (Costagyra) olisiponensis" = Costagyra olisiponensis Sharpe 1850 oyster
"Exogyra (Rhynchostreon) columba" = Rhynchostreon suborbiculatum Lamarck 1801 oyster
 Pectinida - Plicatulidae
"Plicatula auressensis" = Plicatula (Plicatula) auressensis
"Plicatula auressensis" = Plicatula (Plicatula) auressensis Coquand 1862 scallop
Cephalopoda
 Ammonitida - Pseudotissotiidae
"Gombeoceras gongilense" = Thomasites gongilensis
"Gombeoceras gongilense" = Thomasites gongilensis Woods 1911 ammonite
 Ammonitida - Acanthoceratidae
Pseudoaspidoceras pseudonodoides, Pseudoaspidoceras aff. footeanum, "Euompholoceras (Kanabiceras) septemseriatum" = Euomphaloceras septemseriatum, "Euompholoceras (Kanabiceras) aff. septemseriatum" = Euomphaloceras septemseriatum
"Euompholoceras (Kanabiceras) septemseriatum" = Euomphaloceras septemseriatum Cragin 1893 ammonite
"Euompholoceras (Kanabiceras) aff. septemseriatum" = Euomphaloceras septemseriatum Cragin 1893 ammonite
 Ammonitida - Vascoceratidae
Vascoceras gamai Choffat 1898 ammonite