Roque Mendes, Riachuelo (Cretaceous of Brazil)

Where: Sergipe, Brazil (10.5° S, 37.5° W: paleocoordinates 15.4° S, 8.7° W)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Sergipe Group, Middle Albian (109.0 - 105.3 Ma)

• STRATIGRAPHIC RELATIONS: From unnamed lithostratigraphic unit, for which lithostratigraphic relations are not discussed. AGE: Middle Albian, on the basis of ammonite biostratigraphy. STRATIGRAPHIC POSITION: From uknown position in local section.

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified lithology not reported

• SPECIFIC LITHOLOGY: Unknown. LITHIFICATION: Lithified, on the basis of figured specimens.

Size class: macrofossils

Collection methods: surface (in situ),

• COLLECTOR: Brazilian Geological Survey. REPOSITORY: Brazilian Geological Survey.

Primary reference: C. J. Maury. 1936. Monographias do Servico Geologico E Mineralogico 11:1-283 [A. Hendy/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 87867: authorized by Austin Hendy, entered by Austin Hendy on 26.03.2009

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Exhaustive for ammonites, bivalves, and gastropods. NOMENCLATURE: Authoritative publication, but with antiquated nomenclature, but with some species-resolution identification where possible.
Show authors, comments, and common names
Gastropoda
 Sorbeoconcha - Cypraeidae
""Cypraea" riachuelana" = Protocypraea riachuelana
""Cypraea" riachuelana" = Protocypraea riachuelana Maury 1936 cowry
Bivalvia
 Cardiida - Glossidae
Isocardia branneri
Isocardia branneri White 1887 clam
 Cardiida - Cardiidae
Cardium (Trachycardium) riachuelense n. sp.
Cardium (Trachycardium) riachuelense n. sp. Maury 1936 cockle
 Pectinida - Neitheoidae
"Neithea quadricostata" = Neithea regularis
"Neithea quadricostata" = Neithea regularis Schlotheim 1813 scallop
SUBSPECIES: Neithea quadricostata lastroensis
Cephalopoda
 Ammonitida - Brancoceratidae
Brancoceras euzebioi n. sp.
Brancoceras euzebioi n. sp. Maury 1936 ammonite