About Our Holdings
Foram Type Images
About Our Holdings
The UCMP microfossil collections include type and figured specimens, 80,000
mounted and strewn slides, processed material and bulk samples. Taxa representedinclude foraminifera, silicoflagellates, calcareous nannofossils, acritarchs,
diatoms, ostracodes, and prasinophycean algae. Samples range in age from
preCambrian to Recent and come from localities worldwide. For more information
on these collections, contact the
UCMP houses over 10,000 type and published specimens. The bulk of the
collection is the result of research on biostratigraphy, taxonomy, and
biology of protists and prokaryotes at U.C. Berkeley. In addition, the
UCLA micropaleontological collections and the work of other outside researchers
The microfosil catalog may be searched
on-line. There are also some images of type
specimens of foraminifera available online. These images were captured
with an environmental scanning electron microscope, so the specimens did
not have to be coated or even moved from their slide mounts.
The core of the Museum's collections of prepared slides of microfossils comes
from the research of faculty, staff and students at U.C. Berkeley. Outside
donors have greatly enhanced these collections with material from around
the world. Most of the published types are now entered in the searchable
online catalog. Major separate collections
- Stratigraphic collection: Thin sections and strewn, faunal and single
mount slides of foraminifera, calcareous nannofossils, diatoms, ostracodes,
and other microfossils, primarily from the Western United States.
- UCLA micropaleontological collection: Strewn, faunal and single mount
slides of many taxa including acritarchs, chrysomonads, diatoms, foraminifera,
prasinophycean algae, and silicoflagellates.
- Al Loeblich and Helen Tappan Loeblich: strewn and single mount slides
of Paleozoic to Cenozoic microfossils, including acritarchs, calcareous
nannofossils, chitinozoa, diatoms, foraminifera, silicoflagellates, and
- Thomas Vaughan collection: Thin sections of Mesozoic and Cenozoic larger
- Eugene J. Tynan memorial collection: Triassic through Holocene pollen,
silicoflagellates, and archaeomonads, transferred from the University of
- A.D. Warren/R.M. Kleinpell collection: slides of foraminifera, calcareous
nannofossils, and silicoflagellates.
- Zach Arnold collection: cytological slides and faunal and single mount
slides of recent foraminifera from live collections and laboratory cultures.
- W. Weaver collection: faunal slides of foraminifera, primarily from
The UCMP micropaleontological sample collections include bulk and processed
material from faculty and student researchers and outside researchers.
The major outside collections include:
- Al Loeblich and Helen Tappan Loeblich microfossil sample collection:
Processed residues and bulk samples from over 8,000 localities worldwide
ranging in age from Cambrian through Holocene.
- A.O. Warren/R.M. Kleinpell collection: bulk samples primarily from
the Western United States, including many oil well samples.
- Zach Arnold cytological collection: Wet preserved material from field
collections and laboratory cultures of foraminifera.
Oil Well Collections
UCMP houses a large collection of sample residues from oil wells and
some well cores, primarily from California. Check the
online lists organized by state and county for availability of samples from
specific wells. The largest separate collections are:
- Arco/Richfield collection: More than 20,000 mounted faunal slides of
foraminifera and over 2,000,000 unpicked sample residues from over 13,000
oil wells, primarily in California.
- Texaco collection: over 60,000 mounted faunal slides of foraminifera
plus vials of unpicked sample residues, primarily from California oil wells.
UCMP houses many donor's research notes and libraries. The largest is
the Alfred R. Loeblich. Jr. and Helen Tappan Loeblich Library, a collection
of more than 25,000 books, bound journals, and reprints on foraminifera
and other microfossils. Other significant holdings are the A. O. Warren
library and the W. R. Weaver library.