thumbnail

Some of Alpheus Hyatt's unfigured types from the Jurassic of California

Professional Paper 175-B

By:

Links

Abstract

Alpheus Hyatt named a considerable number of Jurassic fossils from California. Only a few of these were described, arid none were illustrated. In this paper 16 of these species are evaluated in terms of present-day nomenclature, figures of the type specimens are shown, and their probable age significance is given. Included are Monotis semiplicata (=Entolium semiplicata),Monotis symmetrica (=Entolium symmetrica), Daonella?subjecta ( = '' Daonella" subjecta), Daonella bOchiformts (=" Daonella" bOchiformis), Daonella cardinoides (="Duonella"cardinoides), A ucella erringtoni var. arcuata ( = Buchia arcuata), Aucella elongata ( = Buchia elongata), AuceUa var.elongata orbicularis ( = Buchia sinzovi), Aucella aviculaeformis ( = Buchia erringtoni var. aviculaeformis), Aucella aviculaeformis var. acuta ( = Buchia erringtoni var. orbicularis), Aucella orb·.icularis( = Buchia erringtoni var. orbicularis), Cardioceras dub\~um ( = Amoeboceras dubium), Perisphinctes virgulatiformis ( = Viigatosphinctes virgulatiformis), Perisphinctes miihlbachi ( = Dichotomoceras miihlbachi), iJlcostephanus lindgreni ( =" Galilaeiceras" lindgreni), Oecotraustes denticulata ( = "Oecotraustes" dent-iculata).

Geospatial Extents

Additional Publication Details

Publication type:
Report
Publication Subtype:
USGS Numbered Series
Title:
Some of Alpheus Hyatt's unfigured types from the Jurassic of California
Series title:
Professional Paper
Series number:
175
Chapter:
B
Year Published:
1933
Language:
ENGLISH
Publisher:
United States Government Printing Office
Publisher location:
Washington, D.C.
Description:
II, 16 p.
First page:
52
Last page:
67
Number of Pages:
19
Country:
United States
State:
California