LSJU Loc. 66, San Ignacio [Isidro Fm]: Early/Lower Miocene, Mexico
collected by Hake

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Echinoidea - Clypeasteroida - Echinarachniidae
Scutella norrisi Pack 1909
replaced by Vaquerosella coreyi
Thecostraca - Balanomorpha - Balanidae
Balanus aff. californicus (Pilsbry 1916)
original and current combination Balanus tintinnabulum californicus
Gastropoda - Trochidae
Calliostoma hannibali n. sp. Hertlein and Jordan 1927
Gastropoda - Neotaenioglossa - Calyptraeidae
Calyptraea inornata (Gabb 1869)
Gastropoda - Turritellidae
Turritella ocoyana Conrad 1855
Turritella bosei n. sp. Hertlein and Jordan 1927
synonym of Turritella ocoyana
Gastropoda - Neogastropoda - Muricidae
Cymia heimi n. sp. Hertlein and Jordan 1927
Thais wittichi n. sp. Hertlein and Jordan 1927
Gastropoda - Neogastropoda - Terebridae
Terebra burckhardti n. sp. Hertlein and Jordan 1927
Gastropoda - Neogastropoda - Pseudolividae
Macron hartmanni n. sp. Hertlein and Jordan 1927
Gastropoda - Cypraeidae
Cypraea amandusi n. sp. Hertlein and Jordan 1927
recombined as Siphocypraea amandusi
Gastropoda - Naticidae
Polinices recluzianus (Deshayes 1839)
recombined as Glossaulax reclusiana
Gastropoda - Pseudomelaniidae
Crassispira starri n. sp. Hertlein and Jordan 1927
Bivalvia - Mytilida - Mytilidae
Mytilus cf. mathewsonii Gabb 1866
recombined as Crenomytilus mathewsoni
Bivalvia - Cardiida - Tellinidae
Metis alta (Conrad 1833)
original and current combination Tellina alta
Bivalvia - Cardiida - Psammobiidae
Sanguinolaria toulai n. sp. Hertlein and Jordan 1927
recombined as Nuttallia toulai
Bivalvia - Cardiida - Veneridae
Chione richthofeni n. sp. Hertlein and Jordan 1927
recombined as Chione (Chionopsis) richthofeni
Amiantis cf. communis Nomland 1917
Saxidomus cf. vaquerosensis Arnold 1909
see common names

Geography
Country:Mexico State/province:Baja California Sur
Coordinates: 27.0° North, 113.2° West (view map)
Paleocoordinates:26.1° North, 106.8° West
Basis of coordinate:based on nearby landmark
Geographic resolution:outcrop
Time
Period:Neogene Epoch:Miocene
10 m.y. bin:Cenozoic 5
Key time interval:Early/Lower Miocene
Age range of interval:23.03000 - 15.98000 m.y. ago
Stratigraphy
Formation:Isidro
Stratigraphic resolution:bed
Stratigraphy comments: STRATIGRAPHIC RELATIONS: From the Isidro Formation, for which lithostratigraphic relationships are not discussed. AGE: Lower Miocene. STRATIGRAPHIC POSITION: From unknown position in formation.
Lithology and environment
Primary lithology:fine,gray sandstone
Lithology description: SPECIFIC LITHOLOGY: Fine-grained gray sandstone. LITHIFICATION: Unknown.
Environment:marine indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Collection methods:surface (in situ),field collection
Reason for describing collection:general faunal/floral analysis
Collectors:Hake
Collection method comments: COLLECTOR: B.F. Hake. REPOSITORY: Unknown, possibly LSJU.
Taxonomic list comments:COVERAGE: Exhaustive for molluscs. NOMENCLATURE: Authoritative publication, but with antiquated nomenclature, and variable species or genus resolution identifications.
Metadata
Database number:96570
Authorizer:A. Hendy Enterer:A. Hendy
Research group:marine invertebrate
Created:2010-06-12 22:18:15 Last modified:2013-11-25 13:37:23
Access level:the public Released:2010-06-12 22:18:15
Creative Commons license:CC BY
Reference information

Primary reference:
32780. L. G. Hertlein and E. K. Jordan. 1927. Paleontology of the Miocene of Lower California. Proceedings of the Academy of Sciences 16(19):605-647 [A. Hendy/A. Hendy/J. Marcot]