FLMNH XJ-002 (1990 >4 mm) [Bowden Fm] (Pliocene of Jamaica)

Where: Jamaica (17.9° N, 76.3° W: paleocoordinates 17.9° N, 76.0° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Bowden Formation (Coastal Group), Late/Upper Pliocene (3.6 - 2.6 Ma)

• STRATIGRAPHIC RELATIONS: From Pickerill et al. (1998). Bowden Formation is the uppermost stratigraphic unit of the Lower Coastal Group. The top of the formation is defined by the nonconformably overlying, early Pleistocene Old Pera Beds of the Upper Coastal Group. AGE: Late Pliocene. The unit was formely regarded as Miocene in age, even Oligocene, but foraminiferal and planktic gastropod biostratigraphy points to a late Pliocene age. THICKNESS: The formation has an extimated maximum thickness of 150m, although the basal part of the formation is unexposed. STRATIGRAPHIC POSITION: Unknown position within formation. COMMENTS: In its type area of the Bowden district, natural exposures of the formation are poor and discontinuous, so that a complete and detailed stratigraphy of the entire sequence cannot be determined.

• bed-level stratigraphic resolution

Environment/lithology: offshore; unlithified, pebbly, conglomeratic marl

• ENVIRONMENT: The conglomeratic lithofacies are interpretated as a product of sediment gravity flows, more specifically turbidites, and constitute and integral component of the Bowden Shell bed. The marlstone lithofacies is interpreted as a product of pelagic and hemiplegaic deposition from low density turbidity currents, or possibly even bottom water nepheloid layers.
• SPECIFIC LITHOLOGY: Imperfectly consolidated gravel consisting of pebbles and grains of igneous rocks, limestone, and other sorts of rock in a marly matrix. LITHIFICATION: Unlithified, based on observation of specimens.

Size class: macrofossils

Preservation: original aragonite, original calcite

Reposited in the FMNH

Collection methods: bulk, sieve,

• COLLECTOR: R. Portell (1990). REPOSITORY: FLMNH. FIDELITY: High ecological fidelity. ASSOCIATED COLLECTIONS: Large (>4mm) split of XJ-002.

Primary reference: A. J. W. Hendy, D. P. Buick, K. V. Bulinski, C. A. Ferguson, and A. I. Miller. 2008. Unpublished census data from Atlantic coastal plain and circum-Caribbean Neogene assemblages and taxonomic opinions. [A. Hendy/A. Hendy/A. Hendy]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 69092: authorized by Austin Hendy, entered by Austin Hendy on 17.02.2007

Creative Commons license: CC BY (attribution)

Taxonomic list

• TAXONOMY: Identified by R. Portell; nomenclature revised by A. Hendy.
Gastropoda
 Trochoidea - Turbinidae
 Trochoidea - Trochidae
Calliostoma sp. Swainson 1840 top snail
 Cerithioidea - Cerithiidae
Cerithium sp. Bruguière 1789 cerith snail
Rhinoclavis (Ochetoclava) costaricana cerith snail
SUBSPECIES: R. costaricana stena
 Cerithioidea - Turritellidae
Turritella guppyi Cossmann 1909 turret shell
 Cerithioidea - Modulidae
Modulus modulus Linnaeus 1758 snail
SUBSPECIES: M. modulus basileus
 Pseudomelanoidea - Pseudomelaniidae
Compsodrillia sp. Woodring 1928 snail
Carinodrillia elocata Pilsbry and Johnson 1922 snail
 Architaenioglossa - Ampullinidae
Pachycrommium guppyi Gabb 1873 snail
 Sorbeoconcha - Strombidae
Strombus "sp. A" Linnaeus 1758 conch
Strombus "sp. B" Linnaeus 1758 conch
"Strombus pugiloides" = Strombus proximus Sowerby 1850 conch
Strombus bifrons Sowerby 1850 conch
 Neogastropoda - Olividae
Oliva reticularis Lamarck 1811 olive snail
SUBSPECIES: O. reticularis torchala
 Neogastropoda - Buccinidae
Antillophos (Antillophos) elegans Guppy 1866 true whelk
Antillophos (Antillophos) moorei Guppy 1866 true whelk
 Neogastropoda - Nassariidae
Engoniophos erectus Guppy 1874 snail
 Neogastropoda - Fasciolariidae
Fusinus sp. Rafinesque 1815 snail
 Neogastropoda - Columbellidae
"Strombina guppyi" = Strombina (Spiralta) guppyi
"Strombina guppyi" = Strombina (Spiralta) guppyi Woodring 1928 snail
 Neogastropoda - Conidae
"Conus stenostoma" = Conasprella stenostoma, Conus gracilissimus, "Conus planiliratus" = Conasprelloides planiliratus
"Conus stenostoma" = Conasprella stenostoma Sowerby 1850 cone shell
Conus gracilissimus Guppy 1866 cone shell
"Conus planiliratus" = Conasprelloides planiliratus Sowerby 1850 cone shell
 Neogastropoda - Drilliidae
 Neogastropoda - Turridae
Polystira barretti Guppy 1866 turrid
 Neogastropoda - Muricidae
"Typhis (Typhinellus) siphon" = Typhis (Talityphis) siphon, "Haustellum messorius" = Vokesimurex messorius, Chicoreus (Chicoreus) sp.
"Typhis (Typhinellus) siphon" = Typhis (Talityphis) siphon Woodring 1928 murex snail
"Haustellum messorius" = Vokesimurex messorius Sowerby 1841 murex snail
Chicoreus (Chicoreus) sp. Montfort 1810 murex snail
 Neogastropoda - Cancellariidae
"Cancellaria (Cancellaria) laevescens" = Cancellaria (Pyruclia) laevescens, "Cancellaria (Cancellaria) moorei" = Cancellaria (Bivetopsia) moorei
"Cancellaria (Cancellaria) laevescens" = Cancellaria (Pyruclia) laevescens Guppy 1866 snail
"Cancellaria (Cancellaria) moorei" = Cancellaria (Bivetopsia) moorei Guppy 1866 snail
 Sorbeoconcha - Cymatiidae
Cymatiidae indet. Iredale 1913 snail
 Sorbeoconcha - Personidae
"Distorsio clathratus" = Distorsio clathrata, Distorsio simillima
"Distorsio clathratus" = Distorsio clathrata Lamarck 1816 snail
SUBSPECIES: D. clathratus gatunensis
Distorsio simillima Sowerby 1850 snail
 Sorbeoconcha - Tonnidae
Malea camura Guppy 1866 tun shell
 Sorbeoconcha - Cassidae
"Sconsia striata" = Sconsia grayi
"Sconsia striata" = Sconsia grayi Adams 1855 snail
SUBSPECIES: S. striata sublaevigata
 Sorbeoconcha - Triviidae
"Trivia cypha" = Niveria (Niveria) cypha
"Trivia cypha" = Niveria (Niveria) cypha Woodring 1928 snail
 Sorbeoconcha - Naticidae
Naticidae indet., Polinices hepaticus, "Natica (Naticarius) canrena" = Naticarius canrena
Naticidae indet. Guilding 1834 moon snail
Polinices hepaticus Röding 1798 moon snail
SUBSPECIES: P. brunnea subclausa
"Natica (Naticarius) canrena" = Naticarius canrena Linnaeus 1758 moon snail
SUBSPECIES: N. canrena antinacca
 Sorbeoconcha - Rissoidae
 Sorbeoconcha - Hipponicidae
Cheilea equestris Linnaeus 1758 hoof shell
 Heterostropha - Pyramidellidae
 Heterostropha - Architectonicidae
Architectonica nobilis Röding 1798 sundial
SUBSPECIES: A.nobilis quadriseriata
 Thecosomata - Cavoliniidae
Cavolinia tridentata Niebuhr 1775 snail
Bivalvia
 Arcida - Arcidae
 Arcida - Glycymerididae
"Glycymeris jamaicensis" = Glycymeris (Glycymeris) jamaicensis, "Glycymeris acuticostata" = Tucetona acuticostata
"Glycymeris jamaicensis" = Glycymeris (Glycymeris) jamaicensis Dall 1898 clam
"Glycymeris acuticostata" = Tucetona acuticostata Sowerby 1849 clam
SUBSPECIES: G. acuticostata plasia
 Pectinida - Plicatulidae
"Plicatula guppyi" = Plicatula gibbosa
"Plicatula guppyi" = Plicatula gibbosa Lamarck 1801 scallop
 Pectinida - Anomiidae
Placunanomia lithobleta Dall 1898 scallop
 Pectinida - Pectinoidae
Argopecten uselmae Pilsbry and Johnson 1917 calico scallop
"Chlamys" sp. Röding 1798 scallop
Pecten sp. Müller 1776 scallop
Spondylus sp. Linnaeus 1758 scallop
 Ostreida - Ostreidae
Lopha sp. Röding 1798 oyster
 Lucinida - Lucinidae
Lucinidae indet. Fleming 1828 clam
Codakia (Codakia) lomonea Woodring 1925 clam
Lucina sp. Bruguière 1797 clam
Linga podagrinus Dall 1903 clam
 Cardiida - Veneridae
Pitar sp. Römer 1857 venus clam
Pitar (Pitar) carbaseus Guppy 1866 venus clam
"Chione woodwardi" = Chionopsis woodwardi Guppy 1866 venus clam
Ventricolaria blandiana Guppy 1873 venus clam
Chione sp. von Mühlfield 1811 venus clam
Chione sawkinsi Woodring 1925 venus clam
 Cardiida - Cardiidae
"Fragum medium" = Americardia media Linnaeaus 1758 cockle
"Trigoniocardia haitense" = Trigoniocardia (Trigoniocardia) haitensis Sowerby 1850 cockle
Laevicardium serratum Linnaeus 1758 cockle
 Cardiida - Solecurtidae
 Carditida - Carditidae
Glans scabricostata Guppy 1866 clam
 Nuculanida - Sareptidae