West Port Morant Harbour, locality 1 (Pleistocene of Jamaica)

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

• coordinate stated in text

• outcrop-level geographic resolution

When: Late/Upper Pleistocene (0.1 - 0.0 Ma)

• Mitchell et al. (2000) obtained electron spin resonance measurements from corals in the Port Morant Formation on the southeast side of Port Morant Harbour that indicate deposition was during latest Oxygen Isotope Stage 6 to, probably, earliest Oxygen Isotope Stage 5e, that is, last interglacial.

Environment/lithology: perireef or subreef; lithified, shelly/skeletal packstone

• Coarse-grained bioclastic sandstone with abundant bryozoa (Schizoporella sp.), red algae, and scattered fragments of benthic molluscs and scleractinian corals

Size class: macrofossils

Collection methods: Repository: Nationaal Natuurhistorisch Museum, Leiden (RGM)

Primary reference: J. S. H. Collins, S. K. Donovan, and T. A. Stemann. 2009. Fossil Crustacea of the Late Pleistocene Port Morant Formation, west Port Morant Harbour, southeastern Jamaica. Scripta Geologica 138:23-53 [W. Kiessling/M. Krause]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 185031: authorized by Matthew Clapham, entered by Matthew Clapham on 06.04.2017

Creative Commons license: CC BY (attribution)

Taxonomic list

• "Most specimens collected" here
Malacostraca
 Decapoda - Carpiliidae
Carpilius corallinus Herbst 1783 crab
 Decapoda - Xanthidae
"Micropanope aff. truncatiformis" = Micropanope truncatifrons, Actaea acantha, Actaea cf. bifrons
"Micropanope aff. truncatiformis" = Micropanope truncatifrons Rathbun 1898 stone crab
Actaea acantha Milne-Edwards 1834 stone crab
Actaea cf. bifrons Rathbun 1898 stone crab
 Decapoda - Portunidae
"Portunus vocans" = Laleonectes vocans, "Achelous sebae" = Portunus sebae
"Portunus vocans" = Laleonectes vocans Milne-Edwards 1878 swimming crab
"Achelous sebae" = Portunus sebae Milne-Edwards 1834 swimming crab
 Decapoda - Aethridae
Hepatus praecox Collins et al. 1997 crab
 Decapoda - Oregoniidae
aff. Hyas sp. Leach 1814 crab
 Decapoda - Majidae
Mithraculus forceps Milne-Edwards 1875 spider crab
Mithrax acuticornis Stimpson 1870 spider crab
Mithrax verrucosus Milne-Edwards 1832 spider crab
 Decapoda - Leucosiidae
Persephona sp. Leach 1817 crab
 Decapoda - Diogenidae
Paguristes cf. lymanni Milne-Edwards and Bouvier 1893 hermit crab
Petrochirus bahamensis Herbst 1791 hermit crab
 Decapoda - Callianassidae
? Neocallichirus sp. Sakai 1988 decapod
Neocallichirus peraensis Collins et al. 1997 decapod
Lepidophthalmus ? jamaicense Schmitt 1935 decapod
Maxillopoda
 Sessilia - Pyrgomatidae
Ceratoconcha aff. barbadensis Withers 1926 coral barnacle
 Sessilia - Chthamalidae
Chthamalus ? fragilis Darwin 1854 barnacle