RD 22 - Pétionville-Delmas, Las Cahobas Formation (Miocene of Haiti)

Where: Haiti (18.5° N, 72.3° W: paleocoordinates 18.5° N, 71.5° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Las Cahobas Formation (Artibonite Group), Late/Upper Miocene (11.6 - 5.3 Ma)

• Stated in text as being from "Miocene moyen et superior". Graham (1990) reports the Las Cahobas Formation as being Late Miocene in age based on floral microfossil biostratigraphy, while other authors (e.g. Van den Bold 1970, 1976) report a middle Miocene-Late Miocene age. The enterer (A. Hendy) assigns the Late Miocene age on the basis of most recent and confined age assessments.

• bed-level stratigraphic resolution

Environment/lithology: marine

• Unknown taphonomic data. Requires translation.
• Unknown taphonomic data. Requires translation.

Size class: macrofossils

Collection methods: quarrying,

• Unknown collection repository. Requires translation.

Primary reference: J. Butterlin. 1960. Géologie générale et régionale de la République D'Haiti. Travaux et Mémoires de L'Institute des Hautes Estudes de L'Amérique Latine 6:1-190 [A. Miller/A. Hendy/S. Ávila]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 60105: authorized by Austin Hendy, entered by Austin Hendy on 01.05.2006

Creative Commons license: CC BY (attribution)

Taxonomic list

• Exhaustive for marcroinvertebrates, including coelenterata, brachiopoda, echinoidea, bivalvia and gastropoda.
Bivalvia
 Pectinida - Anomiidae
"Anomia cf. venezuelana" = Anomia peruviana
"Anomia cf. venezuelana" = Anomia peruviana d'Orbigny 1846 jingle
 Cardiida - Veneridae
"Antigona blandiana" = Ventricolaria blandiana
"Antigona blandiana" = Ventricolaria blandiana Guppy 1873 venus clam
 Cardiida - Tellinidae
Tellina gonida tellin clam
Tellina maoica tellin clam
Gastropoda
 Neogastropoda - Conidae
"Conus stenostomus" = Conasprella stenostoma
"Conus stenostomus" = Conasprella stenostoma Sowerby 1850 cone shell
Thecostraca
 Balanomorpha - Balanidae
"Balanus concavus" = Concavus concavus
"Balanus concavus" = Concavus concavus Bronn 1831 barnacle