BPW80-15B, San Hipolito Fm, Vizcaino Peninsula, Baja California Sur (Jurassic of Mexico)

Where: Baja California Sur, Mexico (26.0° N, 111.0° W: paleocoordinates 12.3° N, 53.2° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: San Hipolito Formation, Pliensbachian (190.8 - 182.7 Ma)

• bed-level stratigraphic resolution

Environment/lithology: slope; tuffaceous, brown, gray, green sandstone and tuffaceous, gray, silty lime mudstone

• thin to medium-bedded, poorly sorted, olive grey to light greenish brown, tuffaceous sandstone interbedded with silty and cherty tuffs and silty, tuffaceous, light grey limestone; sample from light grey slightly silty micritic limestone bed

Size class: microfossils

Preservation: original silica

Primary reference: P. A. Whalen and E.S. Carter. 2002. Pliensbachian (Lower Jurassic) Radiolaria from Baja California Sur, Mexico. Micropaleontology 48(2):97-151 [A. Miller/K. Layou/K. Layou]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 33561: authorized by Arnold Miller, entered by Karen Layou on 03.08.2003, edited by Adam Kocsis

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Protozoa
 Spumellaria - Pantanelliidae
Pantanellium "sp. E", Pantanellium inornatum, Gorgansium gongyloideum
Pantanellium "sp. E" Pessagno 1977 radiolarian
Pantanellium inornatum Pessagno and Poisson 1981 radiolarian
 Spumellaria - Patulibracchiidae
Homoeoparonaella lowryensis
Homoeoparonaella lowryensis Whalen and Carter 2002 radiolarian
 Spumellaria - Angulobracchiidae
Cyclastrum scammonense, Cyclastrum veracruzense, Cyclastrum asuncionense, Paronaella corpulenta
Cyclastrum scammonense Whalen and Carter 2002 radiolarian
Cyclastrum veracruzense Whalen and Carter 2002 radiolarian
Cyclastrum asuncionense Whalen and Carter 2002 radiolarian
Paronaella corpulenta De Wever 1981 radiolarian
radiolarian species
 Spumellaria - Orbiculiformidae
"Orbiculiformella kwunaensis" = Orbiculiformella callosa
"Orbiculiformella kwunaensis" = Orbiculiformella callosa Yeh 1987 radiolarian
 Nassellaria - Parvicingulidae
Canoptum dixoni
Canoptum dixoni Pessagno and Whalen 1982 radiolarian