Jabonillal [Restin Fm] (Eocene of Peru)

Where: Piura, Peru (4.5° S, 81.2° W: paleocoordinates 12.3° S, 109.8° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Restin Formation, Bartonian (41.3 - 38.0 Ma)

• LITHOSTRATIGRAPHY: From the Restin Fm of the Parinas Gp, which regionally overlies the Parinas Fm (late Middle Eocene) and Salina Gp and is regionally overlain by the Saman Fm (Late Eocene). AGE: Regarded as late Middle Eocene (p. 9) =Bartonian, on the basis of molluscan biostratigraphy. STRATIGRAPHIC POSITION: From unknown position within formation.

• group of beds-level stratigraphic resolution

Environment/lithology: coastal; poorly lithified, gray, green shale

• ENVIRONMENT: Shelfal siliciclastic environment.
• LITHOLOGY: Gray or olive colored shales. LITHIFICATION: Poorly lithified, on the basis of figured specimens.

Size class: macrofossils

Collected by Olsson; reposited in the PRI

Collection methods: surface (in situ),

• COLLECTOR: Not stated, but presumably A. Olsson. REPOSITORY: Not stated, but presumably PRI

Primary reference: A. A. Olsson. 1928. Contributions to the Tertiary paleontology of northern Peru: Part 1. Bulletins of American Paleontology 14(52) [A. Miller/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 88362: authorized by Austin Hendy, entered by Austin Hendy on 09.04.2009

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Exhaustive for bivalves, gastropods, and brachiopods. NOMENCLATURE: Authoritative publication, but with somewhat antiquated nomenclature.
Gastropoda
 Cerithioidea - Cerithiidae
Cerithium xenium n. sp. Olsson 1928 cerith snail
 Sorbeoconcha - Naticidae
"Polinices (Sigaticus) harrisi n. sp." = Sigatica harrisi, "Polinices (Lunatia) vicanus n. sp." = Euspira vicanus
"Polinices (Sigaticus) harrisi n. sp." = Sigatica harrisi Olsson 1928 moon snail
"Polinices (Lunatia) vicanus n. sp." = Euspira vicanus Olsson 1928 moon snail
 Heterostropha - Architectonicidae
Architectonica jabonillensis n. sp. Olsson 1928 sundial
Bivalvia
 Pectinida - Anomiidae
Anomia septenaria Olsson 1928 jingle
Carolia (Parinomya) parinensis Olsson 1928 scallop
Carolia (Carolia) peruviana n. sp. Olsson 1928 scallop
 Pholadida - Corbulidae
"Corbula jabonillaensis n. sp." = Caryocorbula jabonillaensis, "Corbula greda n. sp." = Caryocorbula greda
"Corbula jabonillaensis n. sp." = Caryocorbula jabonillaensis Olsson 1928 clam
"Corbula greda n. sp." = Caryocorbula greda Olsson 1928 clam
 Cardiida - Veneridae
"Pitaria (Lamelliconcha) saponaria n. sp." = Lamelliconcha saponaria, Clementia (Clementia) parinensis
"Pitaria (Lamelliconcha) saponaria n. sp." = Lamelliconcha saponaria Olsson 1928 venus clam
Clementia (Clementia) parinensis Olsson 1928 venus clam
 Cardiida - Cardiidae
"Cardium (Ringicardum) restinense" = Ringicardium restinense
"Cardium (Ringicardum) restinense" = Ringicardium restinense Olsson 1928 cockle
 Cardiida - Donacidae
Donax (Latona) prosopsis n. sp. Olsson 1928 clam