Right bank of Rio Gramame (Roudairia zone) (Cretaceous of Brazil)

Where: Paraíba, Brazil (7.3° S, 34.8° W: paleocoordinates 11.4° S, 19.6° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Maastrichtian (72.1 - 66.0 Ma)

• STRATIGRAPHIC RELATIONS: From unknown lithostratigraphic unit. AGE: Maastrichtian, on the basis of ammonite biostratigraphy; Roudairia zone. STRATIGRAPHIC POSITION: From unknown position within local stratigraphic section.

•JA: originally entered by Hendy as Campanian but comment clearly says Maastrichtian, so I've changed the entry

• bed-level stratigraphic resolution

Environment/lithology: lithified, gray limestone

• ENVIRONMENT: Not stated in text, but apparently shallow marine carbonate.
• SPECIFIC LITHOLOGY: Gray limestone. LITHIFICATION: Lithified, on the basis of figured specimens and facies description.

Size class: macrofossils

Preservation: mold/impression

Collection methods: surface (in situ),

• COLLECTOR: Unknown. REPOSITORY: Geological Survey of Brazil.

Primary reference: C. J. Maury. 1930. O Cretaceo da Parahyba do Norte. Serviço Geologico E Mineralogico do Brasil Monographia 8:1-305 [A. Hendy/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 88074: authorized by Austin Hendy, entered by Austin Hendy on 31.03.2009

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Exhaustive for ammonoids, with other taxa also listed. NOMENCLATURE: Authoritative publication, with antiquated nomenclature, but with species-resolution identifications.
Bivalvia
 Arcida - Glycymerididae
Trigonarca jessupae n. sp. Maury 1930 clam
 Arcida - Cucullaeidae
Cucullaea erda n. sp. Maury 1930 clam
Cucullaea isolda n. sp. Maury 1930 clam
Cucullaea freia n. sp. Maury 1930 clam
 Arcida -
Eusebia stantoni n. sp. Maury 1930 clam
 Pectinida - Plicatulidae
Plicatula parahybensis n. sp. Maury 1930 scallop
 Carditida - Carditidae
Venericardia maris clam
SUBSPECIES: Venericardia maris australis
 Pholadida - Corbulidae
Corbula lyra n. sp.
Corbula lyra n. sp. Maury 1930 clam
 Cardiida - Arcticidae
Roudairia brasiliensis n. sp. Maury 1930 clam
 Cardiida - Cardiidae
Cardium riogramamense n. sp. Maury 1930 cockle
 Pholadomyida - Pholadomyidae
Pholadomya parahybensis n. sp. Maury 1930 clam
Gastropoda
 Naticoidea - Naticidae
Natica parahybensis n. sp. Maury 1930 moon snail
 Sorbeoconcha - Campanilidae
 Sorbeoconcha - Turritellidae
Turritella antigona n. sp. Maury 1930 turret shell
Turritella arethusa n. sp. Maury 1930 turret shell
Turritella totiumsanctorum n. sp. Maury 1930 turret shell
Turritella brunnhilda n. sp. Maury 1930 turret shell
Cephalopoda
 Ammonitida - Diplomoceratidae
Glyptoxoceras sp. Spath 1925 ammonite
Echinoidea
 Arbacioida - Arbaciidae
Coelopleurus castroi n. sp. Maury 1930 sea urchin
 Holectypoida -
Pyrina parahybensis n. sp. Maury 1930 sea urchin