Collection Data

Page Contents: Section | Significance | Background | Location & Dates | Taxonomic Contents | Documentation | Description of Collection | Collection Inventory | Collection Assets

Southern California Edison 2009

Section Responsible for Processing

Invertebrate Paleontology


This collection of invertebrate fossils was made by Cogstone Resource Management, Inc. during construction of the Southern California Edison Tehachapi Renewable Transmission Project, Segment 1.


Southern California Edison and Cogstone Resource Management, Inc., supported the collection of the specimens and their curation in the Department of Invertebrate Paleontology at the Natural History Museum of Los Angeles County.

Collection Location and Dates

The collecting area encompasses outcrops of the Castaic Formation in adjoining parts of the Newhall 7.5' and Mint Canyon 7.5' topographic maps, Los Angeles County, California. The specimens were collected by Cogstone Resource Management, Inc. in 2009 and identified by Lindsey Groves. Nine localities yielded 41 identified lots of invertebrate fossils: LACMIP localities 17899-17907. The coordinates of the centrally positioned locality are: 34.468infinityN 118.498infinityW.

Taxonomic Contents

Mostly mollusks, some echinoderms.


NHMLAC Accession F.A.2205.2010-25. The specimens are currently housed in the main Invertebrate Paleontology collections at the South Grand facility.

Description of Collection

The collection is identified to species, genus, or family level. The entire collection is stored in the Miocene section of the Invertebrate Paleontology main collections at the South Grand facility.

Collection Inventory

One Lane-style drawer of material containing 41 lots of identified and cataloged specimens invertebrate fossils.

Collection Assets

No collection assets available.

Curatorial Status (Click to view)