Also known as three-tenths mile upstream from bridge crossing Matanzas Creek on left bank, four-tenths mile north of Grangers Hall
Where: Sonoma County, California (38.4° N, 122.6° W: paleocoordinates 38.4° N, 121.6° W)
When: Pliocene to Pliocene (5.3 - 0.0 Ma)
• "Pliocene (?) series" - as quoted from reference.
Environment/lithology: marine; lithology not reported
Size classes: macrofossils, mesofossils
• One specimen showing an impression of a part of sternum and male abdomen, also impression of a palm which may not belong to the same individual, (Hemigrapsus sp.); one specimen, holotype, extending from the hind part of the thorax to the sixth abdominal segment, inclusive: holotype, last 4 abdominal segments (3-6), same specimen shows portion of carapace, thoracic (5-8) and first two abdominal (1,2) segments (C. sonomana);
Preservation: mold/impression
Collected by R. Miller in August, 1923
• Holotype in University of California, (C. sonomana);
Primary reference: M. J. Rathbun. 1926. The fossil stalk-eyed Crustacea of the Pacific slope of North America. United States National Museum Bulletin 138:1-155 [C. Schweitzer/S. Yost/M. Uhen]more details
Purpose of describing collection: paleoecologic analysis
PaleoDB collection 138983: authorized by Carrie Schweitzer, entered by Samantha Yost on 06.02.2013
Creative Commons license: CC BY (attribution)
Taxonomic list
Malacostraca | |
Hemigrapsus sp. Dana 1851 crab | |
Chloridella sonomana Rathbun 1926 mantis shrimp |