Some of Alpheus Hyatt's unfigured types from the Jurassic of California
Professional Paper
175-B
By: C.H. Crickmay
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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).
Study Area
| 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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