San Nicholas Island (SN-13): Quaternary, California
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
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Ateles squamigerus
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Anthozoa
- Scleractinia
- Dendrophylliidae
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Balanophyllia elegans
Verrill 1864
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Polyplacophora
- Neoloricata
- Ischnochitonidae
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Tonicella cf. lineata
(Wood 1815)
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Polyplacophora
- Neoloricata
- Acanthochitonidae
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"Cryptochiton" stelleri
(Middendorf 1847)
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Polyplacophora
- Neoloricata
- Mopaliidae
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Mopalia cf. muscosa
(Gould 1846)
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Gastropoda
- Phasianellidae
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Tricolia cf. pulloides
(Carpenter 1865)
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recombined as Eulithidium pulloides | ||||||||||
Gastropoda
- Turbinidae
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Homalopoma carpenteri
(Pilsbry 1889)
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synonym of Homalopoma (Homalopoma) luridum | ||||||||||
Homalopoma ? paucicostatum
(Dall 1871)
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recombined as Homalopoma (Homalopoma) paucicostatum | ||||||||||
Gastropoda
- Trochidae
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Tegula cf. aureotincta
(Forbes 1852)
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recombined as Chlorostoma aureotincta | ||||||||||
Tegula brunnea
(Philippi 1849)
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recombined as Chlorostoma brunnea | ||||||||||
Tegula funebralis
(Adams 1855)
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original and current combination Chlorostoma funebrale | ||||||||||
Calliostoma ligatum
(Gould 1849)
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recombined as Calliostoma ligatus | ||||||||||
Norrisia norrisii
(Sowerby I 1838)
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Pupillaria cf. optabilis
(Carpenter 1864)
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recombined as Lirularia optabilis | ||||||||||
Gastropoda
- Lepetellida
- Fissurellidae
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Diodora aspera
(Rathke 1833)
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Megathura crenulata
(Sowerby 1825)
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Fissurella volcano
Reeve 1849
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Gastropoda
- Lepetellida
- Haliotidae
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Haliotis rufescens
Swainson 1822
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Haliotis cracherodii
Leach 1814
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Gastropoda
- Neotaenioglossa
- Calyptraeidae
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Crepidula excavata
(Broderip 1834)
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Crepidula cf. perforans
Valenciennes 1846
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Crepidula adunca
Sowerby 1824
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Crepipatella lingulata
(Gould 1846)
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Gastropoda
- Neogastropoda
- Mitridae
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Mitra idae
Melville 1893
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recombined as Mitra (Atrimitra) idae | ||||||||||
Gastropoda
- Neogastropoda
- Olividae
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Olivella biplicata
(Sowerby 1825)
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recombined as Callianax biplicata | ||||||||||
Gastropoda
- Neogastropoda
- Columbellidae
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Mitrella carinata
(Hinds 1844)
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recombined as Alia carinata | ||||||||||
Amphissa versicolor
Dall 1871
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Gastropoda
- Neogastropoda
- Conidae
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Conus californicus
Reeve 1844
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recombined as Californiconus californicus | ||||||||||
Gastropoda
- Neogastropoda
- Pseudomelatomidae
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Pseudomelatoma ? torosa
(Gabb 1864)
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Gastropoda
- Neogastropoda
- Mangeliidae
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Mangelia variegata
Carpenter 1864
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recombined as Tenaturris variegata | ||||||||||
Mangelia interfossa
Carpenter 1864
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recombined as Perimangelia interfossa | ||||||||||
Gastropoda
- Neogastropoda
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Mitromorpha gracilior
(Tryon 1884)
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recombined as Cymakra gracilior | ||||||||||
Barbarofusus ? arnoldi
(Cossmann 1903)
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recombined as Harfordia arnoldi | ||||||||||
Gastropoda
- Neogastropoda
- Muricidae
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Ocenebra cf. subangulata
(Stearns 1873)
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recombined as Urosalpinx subangulata | ||||||||||
Gastropoda
- Triviidae
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Pusula californiana
(Gray 1827)
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recombined as Pseudopusula californiana | ||||||||||
Gastropoda
- Cypraeidae
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Zonaria spadicea
(Swainson 1823)
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recombined as Neobernaya spadicea | ||||||||||
Gastropoda
- Littorinidae
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Littorina planaxis
Philippi 1847
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replaced by Littorina (Neritrema) keenae | ||||||||||
Lacuna unifasciata
Carpenter 1857
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recombined as Lacuna (Epheria) unifasciata | ||||||||||
Littorina scutulata
Gould 1849
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recombined as Littorina (Littorina) scutulata | ||||||||||
Gastropoda
- Naticidae
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Lunatia cf. lewisii
(Gould 1847)
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recombined as Euspira lewisii | ||||||||||
Gastropoda
- Rissoidae
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Alvania purpurea
Dall 1871
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recombined as Alvinia purpurea | ||||||||||
"Rissoina" cf. aequisculpta
(Keep 1887)
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recombined as Alvinia aequisculpta | ||||||||||
Gastropoda
- Barleeiidae
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Barleeia cf. oldroydi
Bartsch 1920
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Barleeia subtenuis
Carpenter 1864
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Gastropoda
- Vermetidae
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Spiroglyphus lituellus
(Morch 1861)
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recombined as Dendropoma lituella | ||||||||||
Petaloconchus complicatus
Dall 1908
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Gastropoda
- Cerithiopsidae
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Seila montereyense
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Cerithiopsis sp.
Hanley 1849
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Gastropoda
- Triphoridae
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Triphora cf. pedroana
(Bartsch 1907)
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recombined as Monophorus pedroanus | ||||||||||
Gastropoda
- Hipponicidae
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Hipponix antiquatus
(Linnaeus 1767)
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= Antisabia panamensis
Adams 1852
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Hendy 2020 | |||||||||
Hipponix tumens
(Carpenter 1864)
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Gastropoda
- Caecidae
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Caecum sp.
Fleming 1813
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Caecum californicum
Dall 1885
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Caecum dalli
Bartsch 1920
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synonym of Caecum quadratum | ||||||||||
Fartulum occidentale
Bartsch 1920
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synonym of Fartulum dextroversum | ||||||||||
Gastropoda
- Vitrinellidae
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Vitrinella cf. oldroydi
Bartsch 1907
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Gastropoda
- Procerithiidae
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Bittium cf. attenuatum
Carpenter 1864
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recombined as Lirobittium attenuatum | ||||||||||
Bittium cf. armillatum
Carpenter 1864
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recombined as Lirobittium armillatum | ||||||||||
Gastropoda
- Heterostropha
- Pyramidellidae
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Turbonilla raymondi
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Odostomia cf. oldroydi
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Odostomia cf. tenuisculpta
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Gastropoda
- Heterostropha
- Trimusculidae
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Trimusculus reticulatus
(Sowerby 1835)
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recombined as Trimusculus reticulata | ||||||||||
Gastropoda
- Patellida
- Lottiidae
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Acmaea digitalis
Eschscholtz 1833
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recombined as Lottia digitalis | ||||||||||
Acmaea pelta
Eschscholtz 1833
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recombined as Lottia pelta | ||||||||||
Acmaea scabra
(Gould 1846)
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original and current combination Patella (Lottia) scabra | ||||||||||
Lottia gigantea
Sowerby 1834
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Acmaea insessa
(Hinds 1842)
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recombined as Lottia insessa | ||||||||||
Acmaea cf. limatula
(Carpenter 1864)
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original and current combination Patella limatula | ||||||||||
Bivalvia
- Pectinida
- Pectinidae
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Hinnites giganteus
(Gray 1825)
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recombined as Crassadoma gigantea | ||||||||||
Bivalvia
- Mytilida
- Mytilidae
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Septifer bifurcatus
(Conrad 1837)
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Mytilus californianus
Conrad 1837
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Bivalvia
- Lucinida
- Lucinidae
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Epilucina californica
(Conrad 1837)
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original and current combination Phacoides californicus | ||||||||||
Bivalvia
- Cardiida
- Veneridae
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Transennella tantilla
(Gould 1853)
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recombined as Nutricola tantilla | ||||||||||
Saxidomus nuttalli
Conrad 1837
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Petricola carditoides
(Conrad 1837)
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recombined as Petricola (Petricola) carditoides | ||||||||||
Irus cf. lamellifer
(Conrad 1837)
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recombined as Irusella lamellifera | ||||||||||
Ventricolaria fordii
(Yates 1890)
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recombined as Globivenus fordii | ||||||||||
Bivalvia
- Cardiida
- Psammobiidae
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Gari californica
(Conrad 1849)
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recombined as Gari (Gobraeus) californica | ||||||||||
Bivalvia
- Cardiida
- Semelidae
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Cumingia californica
Conrad 1837
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Bivalvia
- Carditida
- Carditidae
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Glans subquadrata
(Carpenter 1864)
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synonym of Glans carpenteri | ||||||||||
Thecostraca
- Balanomorpha
- Balanidae
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Balanus cf. tintinnabulum
Linnaeus 1758
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recombined as Megabalanus tintinnabulum | ||||||||||
Subspecies: Balanus cf. tintinnabulum californicus | ||||||||||
Thecostraca
- Balanomorpha
- Tetraclitidae
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Tetraclita squamosa
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Subspecies: Tetraclita squamosa rubescens | ||||||||||
Echinoidea
- Camarodonta
- Strongylocentrotidae
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Strongylocentrotus purpuratus
(Stimpson 1857)
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original and current combination Echinus purpuratus | ||||||||||
see common names |
Geography
Country: | United States | State/province: | California | County: | Ventura |
Coordinates: | 33.2° North, 119.5° West (view map) | ||||
Paleocoordinates: | 33.2° North, 119.2° West | ||||
Basis of coordinate: | stated in text | ||||
Geographic resolution: | outcrop |
Time
Period: | Quaternary |
Key time interval: | Quaternary |
Age range of interval: | 2.58800 - 0.00000 m.y. ago |
Stratigraphy
Formation: | Unnamed | ||||
Local section: | Dutch Harbor | ||||
Regional section: | San Nicholas Island | ||||
Stratigraphic resolution: | bed | ||||
Stratigraphy comments: Dune sand and fossiliferous marine terrace deposits of Quaternary age. These overlie Eocene strata. Fossils come from seven well-developed wave-cut platforms at altitudes of 25 to 990 feet. Several submerged terraces are present on the shelf adjacent to the island., the lowest being 400 ft below sea-level. Presumably all the terrace platforms on San Nicholas Island were cut later than the middle Pleistocene diastrophism recognized elsewhere in southern California. Terrace platforms are covered with a variety of sediments of marine and non-marine origin and range in thickness from a few inches to many feet. |
Lithology and environment
Primary lithology: | pebbly,shelly/skeletal conglomeratic,calcareous sandstone |
Includes fossils? | Y |
Lithology description: Generally comprise poorly sorted calcareous sand and gravel composed primarily of mollusc shell fragments, echinoid plates and spines, calcareous algae, and bryozoans. | |
Environment: | coastal indet. |
Glacial or sequence phase: | transgressive systems tract |
Geology comments: Higher emergent terraces may represent wave-abraded platforms that were eroded during eustatic changes in sea level combined with tectonic uplift. The lowest emergent terrace may have been cut during eustatic sea-level changes followed by very slight regional seaward warping. Presumably all the terrace platforms on San Nicholas Island were cut later than the middle Pleistocene diastrophism recognized elsewhere in southern California |
Taphonomy
Modes of preservation: | body |
Size of fossils: | macrofossils |
Collection methods and comments
Collection excludes: | some macrofossils,some microfossils |
Collection methods: | selective quarrying,field collection |
Reason for describing collection: | general faunal/floral analysis |
Collection method comments: Collections made by Vedder (1956). Earlier collections by Cooper (1894), and Howard (1955) | |
Taxonomic list comments:Comprehensive for invertebrates |
Metadata
Also known as: | Vedder & Norris (1963) SN-13 | ||
Database number: | 37937 | ||
Authorizer: | A. Hendy | Enterer: | A. Hendy |
Modifier: | A. Hendy | Research group: | marine invertebrate |
Created: | 2004-03-27 12:56:03 | Last modified: | 2013-11-25 13:37:23 |
Access level: | the public | Released: | 2004-03-27 12:56:03 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
10107. | J. G. Vedder and R. M. Norris. 1963. Geology of San Nicolas Island, California. United States Geological Survey Professional Paper 369:1-65 [A. Miller/A. Hendy/P. Wagner] |
Secondary references:
63217 | A. J. W. Hendy. 2020. Unpublished taxonomic backbone for Eastern Pacific Invertebrate Communities of the Cenozoic (EPICC) Thematic Collections Network. [A. Hendy/A. Hendy/A. Hendy] |