PPP# 225 - Isla Payardi [middle Gatun Fm]: Tortonian, Panama

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Gastropoda - Neotaenioglossa - Calyptraeidae
Crepidula sp. Lamarck 1799
6 specimens
Crucibulum (Crucibulum) sp. Schumacher 1817
5 specimens
Gastropoda - Turritellidae
Turritella sp. Lamarck 1799
555 specimens
Gastropoda - Epitoniidae
Cirsotrema (Cirsotremopsis) sp. Thiele 1928
2 specimens
Gastropoda - Vermetidae
Petaloconchus sp. Lea 1843
42 specimens
Gastropoda - Neogastropoda - Olividae
Oliva (Oliva) sp. Bruguière 1789
148 specimens
Gastropoda - Neogastropoda - Muricidae
Chicoreus (Chicoreus) sp. Montfort 1810
6 specimens
Haustellum sp. Schumacher 1817
2 specimens
Gastropoda - Neogastropoda - Marginellidae
Prunum sp. Swainson 1840
2 specimens
Gastropoda - Neogastropoda - Mitridae
Subcancilla sp. Olsson and Harbison 1953
1 specimen
Gastropoda - Neogastropoda - Buccinidae
Cymatophos sp. Pilsbry and Olsson 1941
2 specimens
Solenosteira sp. Dall 1890
4 specimens
Nicema sp. Woodring 1964
2 specimens
Antillophos (Antillophos) sp. Woodring 1928
115 specimens
Gastropoda - Neogastropoda - Nassariidae
Calophos sp. Woodring 1964
8 specimens
Gastropoda - Neogastropoda - Fasciolariidae
Fasciolaria (Fasciolaria) sp. Lamarck 1799
3 specimens
Gastropoda - Neogastropoda - Columbellidae
Strombina (Strombina) sp. Mörch 1858
171 specimens
Gastropoda - Neogastropoda - Cancellariidae
Bivetiella dariena (Toula 1908)
Landau et al. 2012 39 specimens
Cancellaria sp. Lamarck 1799
18 specimens
sensu lato
Cancellaria mixta Landau et al. 2012
Landau et al. 2012 23 specimens
Gastropoda - Neogastropoda - Turridae
Gemmula sp. (Weinkauff 1875)
1 specimen
Polystira sp. Woodring 1928
58 specimens
Gastropoda - Neogastropoda - Conidae
Conus sp. Linnaeus 1758
40 specimens
Gastropoda - Neogastropoda - Drilliidae
Clathrodrillia sp. Dall 1918
2 specimens
Hindsiclava sp. Hertlein and Strong 1955
7 specimens
Gastropoda - Neogastropoda - Terebridae
Strioterebrum sp. Sacco 1891
34 specimens
Terebra (Panaterebra) sp. Olsson 1967
10 specimens
Gastropoda - Cypraeidae
Siphocypraea sp. Heilprin 1897
1 specimen
Gastropoda - Strombidae
Strombus sp. Linnaeus 1758
2 specimens
Gastropoda - Personidae
Distorsio decussata (Valenciennes 1832)
7 specimens
Gastropoda - Tonnidae
Malea ringens (Swainson 1822)
10 specimens
Gastropoda - Ranellidae
Monoplex gatunicus Beu 2010
1 specimen
Gastropoda - Naticidae
Polinices sp. Monfort 1810
49 specimens
Natica (Naticarius) sp. (Dumeril 1806)
95 specimens
original and current combination Naticarius
Gastropoda - Opisthobranchia - Cylichnidae
Cylichnella sp. Gabb 1873
1 specimen
Gastropoda - Heterostropha - Architectonicidae
Architectonica sp. Röding 1798
47 specimens
Bivalvia - Pholadida - Corbulidae
Caryocorbula sp. (Gardner 1926)
1 specimen
original and current combination Corbula (Caryocorbula)
Bivalvia - Cardiida - Veneridae
Lirophora sp. Conrad 1863
242 specimens
Bivalvia - Cardiida - Chamidae
Chama sp. Linnaeus 1758
96 specimens
Arcinella sp. Schumacher 1817
1 specimen
Bivalvia - Cardiida - Cardiidae
Trachycardium (Dallocardia) sp. Stewart 1930
6 specimens
spelled with current rank as Dallocardia
Bivalvia - Arcida - Glycymerididae
Tucetona sp. Iredale 1939
1 specimen
Bivalvia - Arcida - Arcidae
Anadara (Rasia) sp. (Gray 1857)
92 specimens
Bivalvia - Ostreida - Gryphaeidae
Hyotissa sp. Stenzel 1971
52 specimens
Bivalvia - Pectinida - Pectinidae
Argopecten sp. Monterosato 1889
1 specimen
Flabellipecten sp. Sacco 1897
1 specimen
Scaphopoda - Gadilida - Gadilidae
Cadulus sp. Philippi 1844
9 specimens
Scaphopoda - Dentaliida - Dentaliidae
Dentalium sp. Linnaeus 1758
1 specimen
sensu lato
see common names

Geography
Country:Panama State/province:Colon
Coordinates: 9.4° North, 79.8° West (view map)
Paleocoordinates:9.1° North, 78.5° West
Basis of coordinate:stated in text
Geographic resolution:outcrop
Time
Period:Neogene Epoch:Miocene
Stage:Tortonian 10 m.y. bin:Cenozoic 6
Key time interval:Tortonian
Age range of interval:11.63000 - 7.24600 m.y. ago
Age estimate:10.5 Ma (other)
Stratigraphy
Formation:Gatun Member:middle Gatun
Stratigraphic resolution:bed
Stratigraphy comments: STRATIGRAPHIC RELATIONS: The Gatun Fm rests unconformably on formations of different ages in different parts of the Panama Canal Basin. To the east of Colon, the Gatun Fm rests nonconformably on unamed Cretaceous volcanics. To the west of Colon, including several islands in Lake Gatun, the Gatun Fm rests with angular unconformity on the upper Oligocene Caimito Fm. Locality: Sabanita to Payardi. AGE: Tortonian based on more recent dating (Hendy, 2012). Sr dating for nearby sections indicates an age of approximately 10.5 Ma (Hendy, unpublished data).
Lithology and environment
Primary lithology:gray,green unlithified siltstone
Secondary lithology:bioturbation unlithified sandstone
Includes fossils?Y
Includes fossils?Y
Lithology description: GENERAL LITHOLOGY: The lower 5m of the lower Gatun Formation consists of volcanic conglomerate, with 1-5cm clasts and a tuffaceous, arkoskic matrix, cross-bedded, laminated, tuffaceous siltstone and alternating laminated sandstone and siltstone, mostly deeply weathered. The overlying 40m (Section 1) consists of massive, grey-green, clayey siltstone, with minor claystone and fine sandstone units. zones of densely packed large concretions, pervasive bioturbation, and extensive thalassinoid burrow systems, as well as simple vertical and lateral hash-filled burrows. Shell hash of varying grain size and density is almost ubiquitous, as are units packed with diverse, whole mollusks.
Environment:coastal indet.
Geology comments: ENVIRONMENT: from Collins et al. (1999), open, inner neritic.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Collection excludes:all microfossils,some macrofossils
Collection methods:bulk,sieve,field collection
Reason for describing collection:paleoecologic analysis
Museum repositories:NMB
Collection method comments: COVERAGE: Exhaustive for gastropoda, bivalvia and scaphopoda. COLLECTORS: unknown (PPP staff) collected 8/21/87. REPOSITORIES: Naturhistorisches Museum Basel (NMB),
Taxonomic list comments:NOMENCLATURE: modern nomenclature, though only identified to subgenus resolution. IDENTIFIER: presumably identified by J. Jackson, J. Todd, H. Fortunato, and P. Jung.
Metadata
Also known as:NMB Loc. 17643
Database number:79995
Authorizer:A. Hendy Enterer:K. Bulinski, A. Hendy
Modifier:A. Hendy Research group:marine invertebrate
Created:2008-03-31 20:10:46 Last modified:2013-11-25 13:37:23
Access level:authorizer only Released:2009-03-31 20:10:46
Creative Commons license:CC BY
Reference information

Primary reference:
17667. 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]

Secondary references:

43491 B. Landau, R. E. Petit, and C. M. Silva. 2012. New Cancellariidae (Mollusca, Gastropoda) from the Miocene Gatun Formation of Panama, with eleven new species. Journal of Paleontology 86(6):907-930 [A. Hendy/A. Hendy]