Pindiga, Zambuk Ridge (Cretaceous to of Nigeria)

Where: Nigeria (10.0° N, 10.9° E: paleocoordinates 5.5° S, 3.4° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Pindiga Formation, Late/Upper Cenomanian to Late/Upper Cenomanian (99.6 - 89.3 Ma)

• STRATIGRAPHIC RELATIONS: From the Pindiga Fm (Turonian-Coniacian), which overlies the Yolda Fm (Cenomanian) is overlain by the Gulani Fm (Santonian-Maastrichtian). AGE: Early Turonian, on the basis of ammonite biostratigraphy [ammonites actually include mix of Late Cenomanian and Early Turonian species]. STRATIGRAPHIC POSITION: From unknown position within the section of around 650 ft thick.

• group of beds-level stratigraphic resolution

Environment/lithology: coastal; lithified, concretionary, shelly/skeletal limestone and lithified, blue shale

• ENVIRONMENT: Presumably an shallow siliciclastic marine facies.
• SPECIFIC LITHOLOGY: Alternating fossiliferous and nodular or rubbly limestones and blue shales. LITHIFICATION: Lithified, on the basis of figured specimens.

Size class: macrofossils

Preservation: cast, mold/impression

Collection methods: surface (in situ),

• COLLECTOR: Not stated in text, but presumably including the authors. REPOSITORY: Not stated in text.

Primary reference: W. Barber. 1958. Upper Cretaceous Mollusca from north-eastern Nigeria. Records of the Geological Survey of Nigeria 1956:14-47 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 83019: authorized by Austin Hendy, entered by Austin Hendy on 05.08.2008

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Exhaustive for ammonoids and bivalves, and sometimes including fish. NOMENCLATURE: Not an authoritative publication, and with somewhat antiquated nomenclature. Mostly identified to species resolution.
Echinoidea
 Spatangoida - Hemiasteridae
"Hemiaster (Mecaster) sp." = Mecaster
"Hemiaster (Mecaster) sp." = Mecaster Pomel 1883 heart urchin
 Hemicidaroida -
Micropedina olisiponensis Forbes in Sharpe 1850 sea urchin
Gastropoda
 Neritoidea - Neritidae
Nerita multigranosa von Koenen 1897 snail
 Architaenioglossa - Ampullinidae
Ampullospira bulbiformis d'Orbigny 1842 snail
Bivalvia
 Mytilida - Mytilidae
Volsella flichei Peron 1880 mussel
 Pectinida - Pectinoidae
"Pecten (Chlamys) aff. cretosus" = Mimachlamys cretosa
"Pecten (Chlamys) aff. cretosus" = Mimachlamys cretosa Defrance 1822 scallop
 Pectinida - Plicatulidae
"Plicatula fourneli" = Plicatula (Plicatula) fourneli, "Plicatula ferryi" = Plicatula (Plicatula) ferryi
"Plicatula fourneli" = Plicatula (Plicatula) fourneli Coquand 1862 scallop
"Plicatula ferryi" = Plicatula (Plicatula) ferryi Coquand 1862 scallop
 Ostreida - Pinnidae
Pinna laticostata Stoliczka 1871 oyster
 Ostreida - Gryphaeidae
"Exogyra olisiponensis" = Costagyra olisiponensis
"Exogyra olisiponensis" = Costagyra olisiponensis Sharpe 1850 oyster
 Arcida - Glycymerididae
Trigonarca aff. acclivis Conrad 1852 clam
 Cardiida - Cardiidae
"Cardium (Trachycardium) productum" = Granocardium productum
"Cardium (Trachycardium) productum" = Granocardium productum Sowerby 1832 cockle
 Cardiida - Tellinidae
Lavignon nigeriense Schneegans 1943 tellin clam
 Cardiida - Glossidae
""Anisocardia" auquilina" = Glossus aquilinus
""Anisocardia" auquilina" = Glossus aquilinus Coquand 1862 clam
 Cardiida - Veneridae
"Paphia" cf. numidicus Coquand 1880 venus clam
 Cardiida - Arcticidae
"Arctica" globosa Sharpe 1850 clam
Veniella aff. byzacenica Pervinquière 1912 clam
 Poromyida - Poromyidae
Liopistha ligeriensis d'Orbigny 1845 clam
 Pholadomyida - Pholadomyidae
 Carditida - Astartidae
Astarte awensis Woods 1911 clam