PPP# 1188 - San Lorenzo [Chagres Sandstone] (Miocene of Panama)

Where: Colon, Panama (9.3° N, 80.0° W: paleocoordinates 9.2° N, 79.4° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Chagres Sandstone Formation, Messinian (7.2 - 5.3 Ma)

• The Chagres Formation sits disconformably on the Gatun Formation: a marked change in lithology and a temporal hiatus characterizes the disconformity. Toro Point Section. AGE: direct date is midpoint for established age range from microfossil biostratigraphy.

• bed-level stratigraphic resolution

Environment/lithology: marine; bioturbated, coarse-grained, volcaniclastic, argillaceous sandstone

• The Chagres Formation consists of indurated conglomeratic coarse-grained, volcanic sandstone with quartz, feldspar, and lithic grains, It is pervasively bioturbated and is relatively poor in macrofossils. Toward the west, in the region of the Indio River and Gobea. The average grain size of the Chagres Formation markedly decreases and the macrofossil content increases.

Size class: macrofossils

Reposited in the BMNH, NMB, USNM

Collection methods: bulk, sieve,

• COVERAGE: Exhaustive for gastropoda, bivalvia and scaphopoda. COLLECTORS: unknown (PPP staff), 7/8/92. REPOSITORIES:collections presumably held at USNM, BMNH and Naturhistorisches Museum Basel (NMB),

Primary reference: L. S. Collins and A. G. Coates. 1999. A paleobiotic survey of Caribbean faunas from the Neogene of the Isthmus of Panama. Bulletins of American Paleontology (357) [A. Miller/A. Hendy/A. Hendy]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 79855: authorized by Arnold Miller, entered by Kate Bulinski on 25.03.2008

Creative Commons license: CC BY (attribution)

Taxonomic list

• NOMENCLATURE: modern nomenclature, though only identified to subgenus resolution. IDENTIFIER: presumably identified by J. Jackson, J. Todd, H. Fortunato, and P. Jung.
Bivalvia indet. Linnaeus 1758 clam
 Arcida - Arcidae
Anadara (Rasia) sp. Gray 1857 ark
"Lunarca sp." = Anadara (Lunarca) Gray 1857 ark
 Arcida - Glycymerididae
Tucetona sp. Iredale 1939 clam
Axinactis (Glycymerella) sp. Woodring 1925 clam
 Pectinida - Propeamussiidae
? Cyclopecten sp. Verrill 1897 mud scallop
 Pectinida - Pectinoidae
Spondylus sp. Linnaeus 1758 scallop
Amusium sp. Röding 1798 scallop
Argopecten sp. Monterosato 1889 calico scallop
Flabellipecten sp. Sacco 1897 scallop
"Chlamys" sp. Röding 1798 scallop
 Pectinida - Limidae
Limatula sp. Wood 1839 file clam
 Pectinida - Plicatulidae
Plicatula sp. Lamarck 1801 scallop
 Pectinida - Anomiidae
Placunanomia sp. Broderip 1832 scallop
Anomia sp. Linnaeus 1758 jingle
 Ostreida - Gryphaeidae
Hyotissa sp. Stenzel 1971 oyster
Pycnodonte sp. Fischer von Waldheim 1835 oyster
 Ostreida - Ostreidae
Ostreidae indet. Rafinesque 1815 oyster
[entered as Ostreid indet.]
 Mytilida - Mytilidae
Lithophaga sp. Röding 1798 mussel
Crenella sp. Brown 1827 mussel
 Carditida - Crassatellidae
Crassinella sp. Guppy 1874 clam
 Pholadida - Corbulidae
? Juliacorbula sp. Olsson 1953 clam
Caryocorbula sp. Gardner 1926 clam
"Varicorbula sp." = Corbula (Varicorbula) Grant and Gale 1931 clam
 Cardiida - Gastrochaenidae
 Cardiida - Chamidae
Chama sp. Linnaeus 1758 jewel box
Pseudochama sp. Odhner 1917 jewel box
Arcinella sp. Schumacher 1817 jewel box
 Cardiida - Ungulinidae
Diplodonta sp. Bronn 1831 clam
 Cardiida - Veneridae
Chione sp. von Mühlfield 1811 venus clam
Periglypta sp. Jukes-Browne 1914 venus clam
Dosinia sp. Scopoli 1777 venus clam
"Ventricolaria sp." = Globivenus Coen 1934 venus clam
Pitar (Hyphantosoma) sp. Dall 1902 venus clam
Gouldia sp. Adams 1847 venus clam
Macrocallista (Megapitaria) sp. Grant and Gale 1931 venus clam
Cyclinella sp. Dall 1902 venus clam
 Cardiida - Tellinidae
Strigilla sp. Turton 1822 tellin clam
Eurytellina sp. Fischer 1887 tellin clam
 Cardiida - Cardiidae
Trachycardium sp. Mörch 1853 cockle
sensu lato
Laevicardium sp. Swainson 1840 cockle
Americardia sp. Stewart 1930 cockle
Trigoniocardia sp. Dall 1900 cockle
sensu lato
Microcardium sp. Thiele 1934 cockle
 Pandorida - Pandoridae
Pandora (Pandora) sp. Bruguière 1797 clam
 Poromyida - Verticordiidae
Trigonulina sp. d'Orbigny 1946 clam
 Lucinida - Lucinidae
Lucinisca sp. Dall 1901 clam
 Protobranchia - Nuculanidae
Saccella sp. Woodring 1925 pointed nut clam
 Thecosomata - Limacinidae
Limacina sp. Bosc 1817 snail
 Thecosomata - Cavoliniidae
Cavolinia sp. Avilgaard 1791 snail
Creseis sp. Rang 1828 snail
Diacria sp. Gray 1847 snail
 Opisthobranchia - Bullidae
Bulla sp. Linnaeus 1758 snail
 Opisthobranchia - Retusidae
Sulcoretusa sp. Burch 1945 snail
Volvulella (Volvulella) sp. Newton 1891 snail
 Opisthobranchia - Cylichnidae
Acteocina sp. Gray 1847 barrel-bubble
 Opisthobranchia - Haminoeidae
Atys (Atys) sp., "Atys (Aliculastrum) sp." = Aliculastrum
Atys (Atys) sp. Montfort 1810 snail
"Atys (Aliculastrum) sp." = Aliculastrum Pilsbry 1896 snail
 Neogastropoda - Olividae
Oliva (Oliva) sp. Bruguière 1789 olive snail
Olivella (Niteoliva) sp. Olsson 1956 olive snail
 Neogastropoda -
"Ancilla (Eburna) sp." = Eburna
"Ancilla (Eburna) sp." = Eburna Lamarck 1801 snail
 Neogastropoda - Olivellidae
Agaronia sp. Gray 1839 snail
 Neogastropoda - Buccinidae
Northia sp. Gray 1847 true whelk
 Neogastropoda - Nassariidae
Nassarius sp. Duméril 1806 snail
sensu lato
? Nassarius sp. Duméril 1806 snail
 Neogastropoda - Melongenidae
Melongena sp. Schumacher 1817 snail
 Neogastropoda - Fasciolariidae
Fusinus sp. Rafinesque 1815 snail
Latirus sp. Monfort 1810 snail
"Fasciolaria (Pleuroploca) sp." = Pleuroploca Fischer 1884 snail
Fasciolaria (Fasciolaria) sp. Lamarck 1799 tulip snail
 Neogastropoda - Cystiscidae
Persicula sp. Schumacher 1817 snail
 Neogastropoda - Mitridae
Subcancilla sp. Olsson and Harbison 1953 mitre shell
 Neogastropoda - Marginellidae
Dentimargo sp. Cossmann 1899 margin shell
Prunum sp. Swainson 1840 margin shell
 Neogastropoda - Volutidae
Voluta sp. Linnaeaus 1758 volute
 Neogastropoda - Costellariidae
Uromitra sp. Bellardi 1887 ribbed mitre
 Neogastropoda - Muricidae
Dermomurex (Trialatella) sp. Berry 1964 murex snail
Chicoreus (Chicoreus) sp. Montfort 1810 murex snail
Haustellum sp. Schumacher 1817 murex snail
 Neogastropoda - Cochlespiridae
"Cochlespira (Ancistrosyrinx) sp." = Cochlespira
"Cochlespira (Ancistrosyrinx) sp." = Cochlespira Conrad 1865 snail
 Neogastropoda - Mangeliidae
Ithycythara sp. Woodring 1928 snail
 Neogastropoda - Drilliidae
? Clathrodrillia sp. Dall 1918 snail
Hindsiclava sp. Hertlein and Strong 1955 snail
 Neogastropoda - Turridae
Turridae indet. Swainson 1840 turrid
Knefastia sp. Dall 1919 turrid
Polystira sp. Woodring 1928 turrid
 Neogastropoda - Conidae
Conus sp. Linnaeus 1758 cone shell
 Neogastropoda - Terebridae
Strioterebrum sp. Sacco 1891 auger snail
Terebra (Oreoterebra) sp. Olsson 1967 auger snail
 Stromboidea - Strombidae
Strombus sp. Linnaeus 1758 conch
 Naticoidea - Naticidae
Natica (? Natica) sp. Scopoli 1777 moon snail
Stigmaulax sp. Morch 1852 moon snail
Polinices sp. Monfort 1810 moon snail
 Cypraeoidea - Cypraeidae
Siphocypraea sp. Heilprin 1897 cowry
 Vermetoidea - Vermetidae
Serpulorbis sp., "Petaloconchus sp." = Petaloconchus
Serpulorbis sp. Sasso 1827 worm shell
"Petaloconchus sp." = Petaloconchus Lea 1843 worm shell
 Calyptraeoidea - Calyptraeidae
Calyptraea sp. Lamarck 1799 slipper shell
Crepidula sp. Lamarck 1799 slipper shell
 Xenophoroidea - Xenophoridae
Xenophora sp. Fischer von Waldheim 1807 carrier shell
 Tonnoidea - Personidae
Distorsio sp. Röding 1798 snail
 Tonnoidea - Tonnidae
Malea sp. Valenciennes 1833 tun shell
 Tonnoidea - Bursidae
"Bursa (Colubrellina) sp." = Bursa
"Bursa (Colubrellina) sp." = Bursa Roding 1798 frog shell
 Tonnoidea - Cassidae
Cassis sp., Sconsia sp., "Phalium (Tylocassis) sp." = Semicassis
Cassis sp. Scopoli 1777 snail
Sconsia sp. Gray 1847 snail
"Phalium (Tylocassis) sp." = Semicassis Mörch 1852 snail
 Rissooidea - Barleeidae
Barleeia sp. Clark 1853 snail
 Truncatelloidea - Caecidae
? Micranellum sp. Bartsch 1920 snail
Meioceras sp. Carpenter 1858 snail
 Sorbeoconcha - Turritellidae
Turritella sp. Lamarck 1799 turret shell
 Sorbeoconcha - Cerithiidae
Alabina sp. Dall 1902 cerith snail
 Sorbeoconcha - Modulidae
Psammodulus sp. Collins 1934 snail
 Heterostropha - Acteonidae
? Acteon sp. Montfort 1810 snail
 Heterostropha - Ringiculidae
 Neritoidea - Neritidae
Smaragdia sp. Issel 1869 snail
 Pyramidelloidea - Pyramidellidae
Eulimastoma sp. Bartsch 1916 snail
 Architectonicoidea - Architectonicidae
Spirolaxis sp. Monterosato 1913 snail
Architectonica sp. Röding 1798 sundial
"Heliacus (Torinista) sp." = Torinista Iredale 1936 snail
Pseudotorinia sp. Sacco 1892 snail
 Trochoidea - Trochidae
Calliostoma sp. Swainson 1840 top snail
Scaphopoda indet. Bronn 1862 tusk shell
 Dentaliida - Dentaliidae
Tesseracme sp. Pilsbry 1898 tusk shell
Fissidentalium sp. Fischer 1885 tusk shell
Dentalium sp. Linnaeus 1758 tusk shell
sensu lato
 Gadilida - Gadilidae
Cadulus sp. Philippi 1844 tusk shell
Siphonodentalium sp. Sars 1859 tusk shell