PBDB Collection

Esmeraldas Formation: Zanclean, Ecuador

List of taxa

Where & when

Geology

Taphonomy & methods

Metadata & references

Taxonomic list

unclassified

	Teleosta indet.
Anthozoa - Scleractinia - Flabellidae

	Flabellum sp. Lesson 1831
Asteroidea

	Asteroidea indet. de Blainville 1830
Echinoidea

	Echinoidea indet. (Leske 1778)
Gastropoda - Neotaenioglossa - Calyptraeidae

	Crucibulum (Crucibulum) spinosum Conrad 1855	Woodring 1973
Gastropoda - Neogastropoda - Muricidae

	Typhis (Talityphis) alatus (Sowerby 1850)	Vokes 1998
	recombined as Typhina alata
Gastropoda - Neogastropoda - Cancellariidae

	Cancellaria (Charcolleria) terryi Olsson 1942	Woodring 1970
	recombined as Massyla terryi

	Massyla terryi (Olsson 1942)	Landau et al. 2012
Gastropoda - Neogastropoda - Turridae

	Pleurolira (Polystira) ecuadoriana (Olsson 1964)	Woodring 1970
Gastropoda - Neogastropoda - Cochlespiridae

	Cochlespira (Ancistrosyrinx) cedonulli (Reeve 1843)	Woodring 1970
Gastropoda - Cassidae

	Dalium sp. Dall 1889
Bivalvia - Lucinida - Lucinidae

	Lucinoma chiripanica (Olsson 1942)	Woodring 1982
Bivalvia - Arcida - Limopsidae

	Limopsis sp. Sassi 1827
Scaphopoda - Dentaliida - Dentaliidae

	Dentalium (Fissidentalium) granadanum Anderson 1929	Woodring 1973
	recombined as Fissidentalium granadanum
	SUBSPECIES: Dentalium (Fissidentalium) granadanum esmeraldum
unclassified

	Bryozoa indet. Ehrenberg 1831
Thecostraca

	Cirripedia indet. Rafinesque 1816
unclassified

	Zoophycos (Spirophyton) sp. (Massalongo 1855)

	Chondrites sp. von Sternberg 1833
see common names

Geography

Time

Stratigraphy

Formation:	Esmeraldas
Stratigraphic resolution:	formation
Stratigraphy comments: STRATIGRAPHIC RELATIONS: From the Esmeraldas Fm, which regionally overlies the Borbon Fm (Middle-Late Miocene). AGE: Zanclean, on the basis of microfossil biostratigraphy. STRATIGRAPHIC POSITION: Collection is representative for entire formation.

Lithology and environment

Primary lithology:	bioturbation,tuffaceous,green unlithified mudstone
Includes fossils?	Y
Lithology description: SPECIFIC LITHOLOGY: Greenish tuffaceous mudstone, containing interbeds of white volcanic ash, graded sand, and in some places graded shell debris. LITHIFICATION: Unlithified, as stated in text.
Environment:	deep-water indet.
Geology comments: ENVIRONMENT: Microplanktonic fauna is fairly diverse, which sug- gests water depths in excess of 200 m. The benthonic fora- minifera suggest depths in the 240 to 900-m range. The mol- luscan fauna contains many discrepancies, in the combined presence of shoal-water and deep-water forms. Olsson (1964), strongly influenced by the presence of the "unusual" deep- water species, estimated the depth at 200 fathoms or 365 m. Rosenberg (1981) plotted a histogram of depth distributions, which peaked at 64 m.

Taphonomy

Modes of preservation:	body,trace
Size of fossils:	macrofossils

Collection methods and comments

Collection excludes:	some macrofossils
Reason for describing collection:	biostratigraphic analysis
Collection method comments: COLLECTOR: Multiple workers. REPOSITORY: Multiple repositories, not stated.
Taxonomic list comments:COVERAGE: Limited to charactersitic or unusual macrofossils and ichnofossils. NOMENCLATURE: Not an authoritative publication, and with genus-resolution identifications.

Metadata

Database number:	90857
Authorizer:	A. Hendy	Enterer:	A. Hendy
Modifier:	A. Hendy	Research group:	marine invertebrate,micropaleontology
Created:	2009-08-19 17:55:09	Last modified:	2013-11-25 13:37:23
Access level:	the public	Released:	2009-08-19 17:55:09
Creative Commons license:	CC BY

Reference information

Primary reference:

P. F. Hasson and A. G. Fischer. 1986. Observations on the Neogene of Northwestern Ecuador. Micropaleontology 32(1):32-42 [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]
18707		E. H. Vokes. 1998. Neogene Paleontology in the Northern Dominican Republic 18. The Superfamily Volutacea (in part) (Mollusca: Gastropoda). Bulletins of American Paleontology 113(354):1-54 [A. Hendy/A. Hendy]
13236		W. P. Woodring. 1970. Geology and paleontology of canal zone and adjoing parts of Panama: Description of Tertiary mollusks (gastropods: Eulimidae, Marginellidae to Helminthoglyptidae). United States Geological Survey Professional Paper 306(D):299-452 [A. Miller/A. Hendy/A. Hendy]
13235		W. P. Woodring. 1973. Geology and paleontology of canal zone and adjoing parts of Panama: Description of Tertiary mollusks (additions to gastropods, scaphopods, pelecypods: Nuculidae to Malleidae). United States Geological Survey Professional Paper 306(E):453-539 [A. Miller/A. Hendy/A. Hendy]
13359		W. P. Woodring. 1982. Geology and paleontology of canal zone and adjoing parts of Panama: Description of Tertiary mollusks (Pelecypods: Propeamussiidae to Cuspidariidae). United States Geological Survey Professional Paper 306(F) [A. Miller/A. Hendy/A. Hendy]