San Juan de la Costa, Baja California, Mexico (Oligocene of Mexico)

Also known as Reef 2027

Where: Mexico (24.3° N, 110.7° W: paleocoordinates 23.1° N, 102.3° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: San Gregorio Formation, Late/Upper Oligocene (28.4 - 23.0 Ma)

• bed-level stratigraphic resolution

Environment/lithology: reef, buildup or bioherm; lithified framestone

• Small patch-reefs built by worm tubes

Size class: macrofossils

Preservation: original calcite

Collection methods: peel or thin section,

Primary reference: R. Fischer, C. Galli Oliver, and J. Reitner. 1989. Skeletal structure growth and paleoecology of the patch reef-building polychaete worm Diplochaetetes mexicanus Wilson, 1986 from the Oligocene of Baja California (Mexico). GĂ©obios 22(5):761-775 [W. Kiessling/W. Kiessling/J. Alroy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 34858: authorized by Wolfgang Kiessling, entered by Wolfgang Kiessling on 08.10.2003

Creative Commons license: CC BY (attribution)

Taxonomic list

Demospongea
 Hadromerida - Acanthochaetetidae