CSUN Loc. 1471 [Bateque Fm] (Eocene of Mexico)

Where: Baja California Sur, Mexico (26.5° N, 112.7° W: paleocoordinates 28.7° N, 96.2° W)

• outcrop-level geographic resolution

When: Bateque Formation, Ypresian (56.0 - 47.8 Ma)

• This collection is from section 2 of the author's four section division of the formation.

• group of beds-level stratigraphic resolution

Environment/lithology: transition zone or lower shoreface; poorly lithified, bioturbated, shelly/skeletal, yellow sandstone and lithified limestone

• 90 m thick shallow-marine deposits that...consist of bioturbated and parallel-laminated, yellow, very fine-grained sandstone (75%)with many interbedded lenses (25%) filled with abundant macrofossils. lenses are poorly sorted coquinas.

Size class: macrofossils

Reposited in the LACM

Primary reference: R. L. Squires and R. A. Demetrion. 1992. Paleontology of the Eocene Bateque Formation, Baja California Sur, Mexico. Contributions in Science (Natural History Museum of Los Angeles County) 434:1-55 [A. Miller/K. Layou]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 5507: authorized by Arnold Miller, entered by Karen Layou on 08.10.1999, edited by Susan Tremblay

Creative Commons license: CC BY (attribution)

Taxonomic list

Florideophyceae
 Corallinales - Corallinophycidae
Archaeolithothamnium sp. Rothpletz 1891
Foraminifera
 Nummulitacea - Asterocyclinidae
Echinoidea
 Spatangoida - Schizasteridae
Schizaster sp. Agassiz 1835 heart urchin
Schizaster sp. aff. S. lecontei
 Cidaroida -
Cidaroida indet. Claus 1880 pencil urchin
spine A
Gastropoda
 Pteropoda - Clionidae
Clionidae indet. Rafinesque 1815 snail
 Neritoidea - Neritidae
Velates perversus Gmelin 1791 snail
Bivalvia
 Pectinida - Pectinoidae
Spondylus batequensis Squires and Demetrion 1990 scallop
 Pectinida - Plicatulidae
Plicatula sp. Lamarck 1801 scallop
? in locality data
? Plicatula "sp. b" Lamarck 1801 scallop
 Ostreida - Malleidae
Nayadina batequensis Squires 1990 oyster
 Ostreida - Gryphaeidae
"Pycnodonte pacifica" = Phygraea pacifica, Pycnodonte bajaensis
"Pycnodonte pacifica" = Phygraea pacifica Squires and Demetrion 1990 oyster
Pycnodonte bajaensis Squires and Demetrion 1990 oyster
Anthozoa
 Scleractinia - Poritidae
Goniopora sp. Blainville 1830 stony coral
Goniopora sp. cf. G. vaughani
 Helioporacea -