Tartaro Fm - Madlum area, Luzon (Miocene of Philippines)

Where: Philippines (15.2° N, 121.0° E: paleocoordinates 15.2° N, 121.0° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Tartaro Formation, Late/Upper Miocene (11.6 - 5.3 Ma)

• STRATIGRAPHIC RELATIONS: From Tartaro Fm, which lies Makapilapi Fm (Late Miocene) and the Alat Conglomerate Mbr of the Guadalupe Fm (Pleistocene). THICKNESS: 150 m for fm. AGE: Pliocene according to Table 1 of Kanno et al. (1982), lying between Late Miocene (Makapilapi Fm) and Pleistocene Alat Cgl. Mbr. Biostratigraphic data presented in text (Table 2) suggests a Late Miocene age. Gonzales et al. (1971) place the Tartaro Fm in the Pliocene-Pleistocene) based on benthic foraminifera. Author, however follows Shuto's (1969, 1971) molluscan biostratigraphy and correlates the Tartaro Fm to the Late Miocene. STRATIGRAPHIC POSITION: Unknown position within formation.

• formation-level stratigraphic resolution

Environment/lithology: lagoonal; unlithified, coarse-grained, shelly/skeletal, conglomeratic sandstone and gray, green, silty sandstone

• ENVIRONMENT: Nearshore or lagoonal environment according to Gonzales (1971) based on benthic forams. Molluscan evidence suggests shallow bottom dwellers living in fine-coarse grained sand in warm-waters of somewhat low salinity.
• SPECIFIC LITHOLOGY: Greenish-gray, silty sandstone, which is intercalated partially with conglomeratic, rather coarse-grained sandstone. Most molluscan fossils are scattered sporadically in the bed rock, but the fossil population is more dense in the conglomeratic sandstone. LITHIFICATION: unlithified as stated to have loose consolidation.

Size class: macrofossils

Collection methods: surface (in situ),

• COLLECTORS: S. Kanno and N. L. Caagusan (1981). REPOSITORY: Joetsu University of Education, Japan.

Primary reference: S. Kanno, S. O'Hara, and N. L. Caagusan. 1982. Molluscan fauna from the Tartaro Formation (Upper Miocene) of Central Luzon, Philippines. Contributions to the Geology and Palaeontology of Southeast Asia 24:51-128 [A. Hendy/A. Hendy]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 70138: authorized by Austin Hendy, entered by Austin Hendy on 19.03.2007

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Exhaustive for Mollusca, some benthic foraminifera mentioned in text. NOMENCLATURE: Authoritative publication with fairly modern nomenclature and species-level identifications.
 Dentaliida - Dentaliidae
 Cycloneritida - Neritiliidae
 Lepetellida - Fissurellidae
 Trochoidea - Turbinidae
 Heterostropha - Pyramidellidae
Pyramidella sp. Lamarck 1799 snail
 Pseudomelanoidea - Pseudomelaniidae
 Cerithioidea - Cerithiidae
Cerithium sp. Bruguière 1789 cerith snail
 Cerithioidea - Potamididae
Telescopium telescopium Linnaeus 1758 horn snail
 Sorbeoconcha - Naticidae
"Natica ruffa" = Natica vitellus Linnaeus 1758 moon snail
Eunaticina papilla Gmelin 1791 moon snail
Polinices albus Monfort 1810 moon snail
 Sorbeoconcha - Strombidae
 Sorbeoconcha - Rostellariidae
Varicospira cancellata Lamarck 1816 snail
 Sorbeoconcha - Cypraeidae
"Cypraea beberkiriana" = Cypraea (Aricia) beberkiriana
"Cypraea beberkiriana" = Cypraea (Aricia) beberkiriana Martin 1899 cowry
 Neogastropoda - Muricidae
"Murex verbeeki" = Murex (Acupurpura) verbeeki Martin 1895 murex snail
COMMENTS: Includes subspecies M. verbeeki bentarsariensis
 Neogastropoda - Costellariidae
Vexillum cruentatum ribbed mitre
 Neogastropoda - Columbellidae
 Neogastropoda - Nassariidae
Nassarius caelatus snail
SUBSPECIES: N. caelatus verbeeki
 Neogastropoda - Melongenidae
Melongena galeodes Lamarck 1843 snail
 Neogastropoda - Conidae
Conus macneili n. sp. cone shell
Conus sp. Linnaeus 1758 cone shell
"Conus cf. hardi" = Conus (Lithoconus) hardi Martin 1879 cone shell
"Conus cf. djarianensis" = Conus (Lithoconus) djarianensis Martin 1895 cone shell
 Neogastropoda - Mitridae
Mitra circula mitre shell
SUBSPECIES: M. circula kannegieteri
 Sorbeoconcha - Ranellidae
Cymatium bayeri triton shell
 Ostreida - Ostreidae
Ostrea sp. Linnaeus 1758 oyster
 Pectinida - Pectinoidae
 Pectinida - Placunidae
 Arcida - Arcidae
Trisidos semitorta Lamarck 1819 clam
Arca sp. Linnaeus 1758 ark
"Anadara aff. antiquata" = Anadara (Anadara) antiquata Linnaeus 1758 ark
"Anadara nodifera" = Anadara (Tegillarca) nodifera Martens 1860 ark
 Carditida - Carditidae
 Pholadida - Corbulidae
"Corbula fortisulcata" = Corbula (Notocorbula) fortisulcata
"Corbula fortisulcata" = Corbula (Notocorbula) fortisulcata Smith 1879 clam
 Cardiida - Veneridae
Circe sp. Schumacher 1817 venus clam
"Clementia papyracea" = Clementia (Clementia) papyracea Gray 1825 venus clam
"Veremolpa tartaroensis n. sp." = Timoclea (Veremolpa) venus clam
Placamen calophylla Philippi 1836 venus clam
Dosinia stabilis venus clam
COMMENTS: spelt as "Dosinis"
Tapes faustinoi n. sp. venus clam
Lioconcha philippinarum Hanley 1844 venus clam
Pitar obliquatum venus clam
 Cardiida - Chamidae
Chama sp. Linnaeus 1758 jewel box
 Cardiida - Cardiidae
 Cardiida - Solecurtidae
 Cardiida - Psammobiidae
 Cardiida - Tellinidae
Merisca orientalis n. sp. tellin clam
Arcopaginula inflata Gmelin 1791 tellin clam
Scutarcopagia sp. Pilsbry 1918 tellin clam
 Lucinida - Lucinidae
Lucinoma sp. Dall 1901 clam