RD 23 - 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 [A. Miller/A. Hendy]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 60106: 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.
Maxillopoda
 Sessilia - Balanidae
"Balanus concavus" = Concavus concavus Bronn 1831 barnacle
Balanus eburneus Gould 1841 barnacle
Balanus polyporus Pilsbry 1924 barnacle
Bivalvia
 Arcida - Arcidae
Arca sp., "Arca (Arca) occidentalis" = Byssoarca zebra
Arca sp. Linnaeus 1758 ark
"Arca (Arca) occidentalis" = Byssoarca zebra Swainson 1833 ark
 Pectinida - Pectinoidae
"Chlamys thetidis" = Argopecten thetidis, "Chlamys oxygonum" = Argopecten thetidis, Chlamys vaughani, "Chlamys pittieri" = Gigantopecten pittieri
"Chlamys thetidis" = Argopecten thetidis Sowerby 1850 calico scallop
"Chlamys oxygonum" = Argopecten thetidis Sowerby 1850 calico scallop
"Chlamys pittieri" = Gigantopecten pittieri Dall 1912 scallop
 Pectinida - Anomiidae
Anomia cf. simplex d'Orbigny 1845 jingle
 Ostreida - Gryphaeidae
"Ostrea haitensis" = Hyotissa haitensis
"Ostrea haitensis" = Hyotissa haitensis Sowerby 1850 oyster
 Ostreida - Ostreidae
"Ostrea folioides" = Dendostrea frons
"Ostrea folioides" = Dendostrea frons Linnaeus 1758 oyster
 Cardiida - Chamidae
"Echinochama cf. antiquata" = Arcinella antiquata
"Echinochama cf. antiquata" = Arcinella antiquata Guppy 1866 jewel box
 Cardiida - Veneridae
"Venus (Mercenaria) cf. berryi" = Mercenaria druidi
"Venus (Mercenaria) cf. berryi" = Mercenaria druidi Ward 1992 quahog
 Cardiida - Tellinidae
Tellina sp. Linnaeus 1758 tellin clam
 Cardiida - Semelidae
 Lucinida - Lucinidae
Anthozoa
 Scleractinia - Faviidae
Solenastrea bournoni Milne-Edwards and Haime 1849 stony coral