Hodson Loc. 6 [La Rosa Fm] (Miocene of Venezuela)

Where: Zulia, Venezuela (10.5° N, 71.0° W: paleocoordinates 9.7° N, 67.7° W)

• coordinate based on political unit

• outcrop-level geographic resolution

When: La Rosa Formation, Burdigalian (20.4 - 16.0 Ma)

• AGE: Late Oligocene in original text; late early Miocene [=Burdigalian], based on the presence of Paraleptopecten quirosensis; following Waller (2011).

• formation-level stratigraphic resolution

Environment/lithology: marine; lithology not reported

Size class: macrofossils

Primary reference: F. Hodson, H. K. Hodson, and G. D. Harris. 1927. Some Venezualan and Caribbean Mollusks. Bulletins of America Paleontology 13(49):1-160 [A. Miller/A. Miller/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 60627: authorized by Arnold Miller, entered by Arnold Miller on 19.05.2006, edited by Austin Hendy

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Arcida - Arcidae
"Arca (Scapharca) mirandana" = Anadara (Rasia) mirandana, "Arca (Scapharca) zuliana" = Anadara (Rasia) zuliana, "Arca (Scapharca) saladillaensis" = Anadara (Potiarca) saladillaensis
"Arca (Scapharca) mirandana" = Anadara (Rasia) mirandana Hodson et al. 1927 ark
"Arca (Scapharca) zuliana" = Anadara (Rasia) zuliana Hodson et al. 1927 ark
Also subspecies Arca Scapharca zuliana maracaibensis
"Arca (Scapharca) saladillaensis" = Anadara (Potiarca) saladillaensis Hodson et al. 1927 ark
 Arcida - Glycymerididae
"Glycymeris canalis" = Tucetona pectinata canalis
"Glycymeris canalis" = Tucetona pectinata canalis Brown and Pilsbry 1911 clam
 Pectinida - Plicatulidae
Plicatula densata Conrad 1843 scallop
 Ostreida - Ostreidae
Ostrea democraciana Hodson et al. 1927 oyster
 Carditida - Carditidae
Venericardia quirosana, "Venericardia zuliana" = Cyclocardia zuliana
Venericardia quirosana clam
Also subspecies: Venericardia quirosana venezuelana
"Venericardia zuliana" = Cyclocardia zuliana Hodson 1929 clam
Also subspecies: Venericardia zuliana weeksi
 Pholadida - Corbulidae
"Corbula (Caryocorbula) quirosana" = Caryocorbula quirosana, "Corbula (Corbula) zuliana" = Varicorbula zuliana
"Corbula (Caryocorbula) quirosana" = Caryocorbula quirosana Hodson 1931 clam
"Corbula (Corbula) zuliana" = Varicorbula zuliana Hodson 1931 clam
 Cardiida - Chamidae
Chama quirosana Hodson 1927 jewel box
 Cardiida - Mactridae
"Mactra (Mactrotoma) quirosana" = Mactrotoma quirosana
"Mactra (Mactrotoma) quirosana" = Mactrotoma quirosana Hodson 1931 surfclam
 Cardiida - Veneridae
"Pitaria (Pitaria) quirosana" = Pitar (Pitar) quirosanus Hodson 1927 venus clam
 Cardiida - Tellinidae
Tellina (Moerella) quirosana Hodson 1931 tellin clam
 Cardiida - Semelidae
"Semele quirosana" = Semele chipolana, Semele zuliana
"Semele quirosana" = Semele chipolana Dall 1900 clam
Semele zuliana Hodson 1931 clam
 Lucinida - Lucinidae
"Lucina (Lucinisca) mirandana" = Lucinisca mirandana
"Lucina (Lucinisca) mirandana" = Lucinisca mirandana Hodson 1931 clam
Gastropoda
 Neogastropoda - Columbellidae
"Strombina quirosana" = Sincola (Dorsina) quirosana
"Strombina quirosana" = Sincola (Dorsina) quirosana Hodson 1931 snail
 Neogastropoda - Cystiscidae
"Marginella (Persicula) venezuelana" = Persicula venezuelana, "Marginella (Persicula) zuliana" = Persicula zuliana, "Marginella (Persicula) maracaibensis" = Persicula maracaibensis, "Marginella (Persicula) mirandana" = Persicula mirandana
"Marginella (Persicula) venezuelana" = Persicula venezuelana Hodson et al. 1927 snail
"Marginella (Persicula) zuliana" = Persicula zuliana Hodson 1927 snail
"Marginella (Persicula) maracaibensis" = Persicula maracaibensis Hodson 1927 snail
"Marginella (Persicula) mirandana" = Persicula mirandana Hodson 1927 snail
 Neogastropoda - Mitridae
Mitra quirosana mitre shell
 Neogastropoda - Marginellidae
 Neogastropoda - Turbinellidae
"Vasum quirosense" = Vasum haitensis
"Vasum quirosense" = Vasum haitensis Sowerby 1850 snail
 Neogastropoda - Costellariidae
"Conomitra weeksi" = Conomitra lavelana
"Conomitra weeksi" = Conomitra lavelana Hodson 1931 ribbed mitre
 Naticoidea - Naticidae
Natica precanrena, Sinum quirosanum, "Polinices (Neverita) paraguanensis" = Neverita paraguanensis
Sinum quirosanum Hodson 1927 moon snail
"Polinices (Neverita) paraguanensis" = Neverita paraguanensis Hodson 1927 moon snail
subspecies: Polinices Neverita paraguanensis quirosana
 Sorbeoconcha - Turritellidae
Turritella venezuelana turret shell
Also two subspecies: Turritella venezuelana quirosana and Turritella venezuelana watkinsi
Turritella zuliana turret shell
Also subspecies: Turritella zuliana palmeri
Turritella gilbertharrisi Hodson 1926 turret shell
Also two subspecies: Turritella gilbertharrisi aguavivensis and Turritella gilbertharrisi staufferi
 Architectonicoidea - Architectonicidae
"Architectonica granulata" = Architectonica nobilis
"Architectonica granulata" = Architectonica nobilis Röding 1798 sundial
Pecten (Aequipecten) quirosensis
  -
"Pecten (Aequipecten) aff. quirosensis" = Paraleptopecten quirosensis
"Pecten (Aequipecten) aff. quirosensis" = Paraleptopecten quirosensis Harris 1927