PBDB Collection

Loc. 2399 - Ferrotepec Fm (Miocene of Mexico)

Where: Michoacan, Mexico (18.0° N, 103.6° W: paleocoordinates 18.6° N, 101.0° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Ferrotepec Formation, Middle Miocene (16.0 - 11.6 Ma)

• LITHOSTRATIGRAPHIC RELATIONS: From Ferrotepac Fm, which has unknown lithostratigraphic relationships. AGE: Middle Miocene. Justification for biostratigraphic assignment unknown.

• group of beds-level stratigraphic resolution

Environment/lithology: shoreface; lithified sandstone and lithified siltstone

• ENVIRONMENT: Unknown, but probably shallow marine. Environmental designation is based on collections entered by S. Peters.

• SPECIFIC LITHOLOGY: Unknown, but assumed to be similar to collections previously entered by S. Peters. LITHIFICATION: Lithified, on the basis of figured specimens (all embedded in matrix).

Preservation: original aragonite, original calcite

Collected by Perrilliat

Collection methods: surface (in situ),

• COLLECTOR: M. D. Perrilliat (1980's). REPOSITORY: Instituto de Geologia, Universidad Nacional Autonoma de Mexico (IGM).

Primary reference: M. C. Perrilliat. 1992. Bivalvos y gasterópodos de la formacion Ferrotepec (Mioceno Medio) de Michoacan. Paleontologia Mexicana 60:1-48 [A. Hendy/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 76566: authorized by Austin Hendy, entered by Austin Hendy on 23.11.2007

Creative Commons license: CC BY (attribution)

Taxonomic list

• COMPLETENESS: Exhaustive for mollusca (gastropoda, bivalvia, and scaphopoda). NOMENCLATURE: Authoritative publication, with modern nomenclature, and extensive use of subspecific, and subgenus assignments.

Show authors, comments, and common names

Bivalvia
Nuculanida - Nuculanidae	Saccella cf. fabalis Saccella cf. fabalis Olsson 1964 pointed nut clam
Pectinida - Pectinoidae	Pecten (Pecten) mexicanus Pecten (Pecten) mexicanus Perrilliat 1992 scallop
Arcida - Arcidae	Anadara (Cunearca) cf. inutilis, Anadara (Tosarca) cf. veatchi Anadara (Cunearca) cf. inutilis Jung 1965 ark Anadara (Tosarca) cf. veatchi Olsson 1922 ark
Lucinida - Lucinidae	Lucina (Lepilucina) cf. gratis Lucina (Lepilucina) cf. gratis Olsson 1964 clam
Cardiida - Tellinidae	Psammacoma zapotalensis, Psammacoma gatunensis Psammacoma zapotalensis Spieker 1922 tellin clam Psammacoma gatunensis Toula 1909 tellin clam
Cardiida - Mactridae	Harvella cf. sincola Harvella cf. sincola Olsson 1922 clam
Cardiida - Veneridae	Lirophora (Lirophora) falconensis, Pitar sp., Cyclinella cyclica, Clementia (Clementia) dariena Lirophora (Lirophora) falconensis Hodson et al. 1927 venus clam Pitar sp. Römer 1857 venus clam Cyclinella cyclica Guppy 1866 venus clam Clementia (Clementia) dariena Conrad 1855 venus clam SUBSPECIES: C. (C.) dariena dariena
Pholadida - Pholadidae	Martesia sp. Martesia sp. Sowerby 1824 clam
Pholadida - Corbulidae	Caryocorbula prenasuta, Bothrocorbula (Hexacorbula) cf. gatunensis Caryocorbula prenasuta Olsson 1964 clam SUBSPECIES: C. prenasuta mexicana Bothrocorbula (Hexacorbula) cf. gatunensis Toula 1909 clam
Gastropoda
Sorbeoconcha - Naticidae	Sinum sp. Sinum sp. Röding 1798 moon snail
Sorbeoconcha - Tornidae	Teinostoma (Pseudorotella) caronensis Teinostoma (Pseudorotella) caronensis Mansfield 1925 snail
Sorbeoconcha - Personidae	"Distorsio (Rhysema) decussata" = Distorsio decussata "Distorsio (Rhysema) decussata" = Distorsio decussata Valenciennes 1832 snail
Neogastropoda - Conidae	Conus aemulator Conus aemulator Brown and Pilsbry 1911 cone shell SUBSPECIES: C. aemulator michoacanensis
Neogastropoda - Mitridae	Mitra (Atrimitra) sp. Mitra (Atrimitra) sp. Dall 1918 mitre shell
Sorbeoconcha - Cypraeidae	Muracypraea sp. Muracypraea sp. Woodring 1957 cowry