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

Professional Paper 175- B
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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).

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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
DOI 10.3133/pp175B
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
Country United States
State California
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