Also known as NMB Loc. 17865
Where: Colon, Panama (9.4° N, 79.9° W: paleocoordinates 9.1° N, 78.5° W)
• coordinate stated in text
• outcrop-level geographic resolution
When: lower Gatun Member (Gatun Formation), Tortonian (11.6 - 7.2 Ma)
• 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. BIOSTRATIGRAPHY: The Middle Gatun Fm is early Late Miocene (8.8-8.3 MA) according to Collins et al. (1999). Local section name: Sabanita to Payardi. AGE: Tortonian based on more recent dating (Hendy, 2012). Sr dating for nearby sections indicates an age of approximately 10.9 Ma (Hendy, unpublished data).
• bed-level stratigraphic resolution
Environment/lithology: coastal; unlithified, bioturbated siltstone and unlithified, bioturbated siltstone
Size class: macrofossils
Reposited in the NMB
Collection methods: bulk, sieve,
• COLLECTORS: unknown (PPP staff) collected on 6/12/88. REPOSITORIES: 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 79834: authorized by Arnold Miller, entered by Kate Bulinski on 25.03.2008
Creative Commons license: CC BY (attribution)
Taxonomic list
Bivalvia | |
Flabellipecten sp. Sacco 1897 scallop
Argopecten sp. Monterosato 1889 calico scallop
Amusium sp. Röding 1798 scallop | |
Anadara (Rasia) sp. Gray 1857 ark | |
| |
Lirophora sp. Conrad 1863 venus clam | |
Gastropoda | |
Architectonica sp. Röding 1798 sundial | |
Crucibulum (Crucibulum) sp. Schumacher 1817 slipper shell | |
| |
Hindsiclava sp. Hertlein and Strong 1955 snail | |
Strioterebrum sp. Sacco 1891 auger snail | |
Gemmula sp. Weinkauff 1875 turrid
Polystira sp. Woodring 1928 turrid | |
Strombinophos sp. Pilsbry and Olsson 1941 true whelk | |
Stigmaulax sp. Morch 1852 moon snail | |
Turritella sp. Lamarck 1799 turret shell |