UCMP A-9002, Punta China (Pleistocene of Mexico)

Where: Mexico (31.5° N, 116.6° W: paleocoordinates 31.5° N, 116.6° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Late/Upper Pleistocene (0.1 - 0.0 Ma)

• Fossils from basal 1-6-foot stratum, at about 25 feet above sea level.

• group of beds-level stratigraphic resolution

Environment/lithology: coastal; unlithified, shelly/skeletal, sandy gravel

• Rock type: reddish brown weathering, sandy gravel; ranging in size from very fine sand to boulders 6 feet in diameter; average particle size, granules. Gravel largely unconsolidated, but

•locally cemented to form a coquina of coarse, poorly sorted sand and fossils.

Size class: macrofossils

Collected by J.W. Durham, E.C. Allison, W.O. Addicott, W.K. Emerson in 1952; reposited in the UCMP

Primary reference: W. K. Emerson. 1956. Pleistocene invertebrates from Punta China, Baja California, Mexico, with remarks on the composition of the Pacific coast Quaternary faunas. Bulletin of the American Museum of Natural History 111:313-342 [M. Clapham/M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 52347: authorized by Austin Hendy, entered by Austin Hendy on 03.08.2005, edited by Matthew Clapham

Creative Commons license: CC BY (attribution)

Taxonomic list

Rhynchonellata
 Terebratulida - Terebrataliidae
Terebratalia transversa Sowerby 1846
Terebratalia transversa var. lata
Gymnolaemata
 Cheilostomata - Antroporidae
 Cheilostomata - Phidoloporidae
 Cheilostomata - Celleporidae
Scaphopoda
 Dentaliida - Dentaliidae
Dentalium neohexagonum Sharp and Pilsbry 1897 tusk shell
Gastropoda
 Heterostropha - Pyramidellidae
"Turbonilla tenuicula" = Pyrgiscus tenuiculus
"Turbonilla tenuicula" = Pyrgiscus tenuiculus Gould 1853 snail
 Heterostropha - Trimusculidae
"Gadinia reticulata" = Trimusculus reticulata
"Gadinia reticulata" = Trimusculus reticulata Sowerby 1835 button snail
 Lepetellida - Haliotidae
Haliotis rufescens, "Haliotis cracherodi" = Haliotis cracherodii
Haliotis rufescens Swainson 1822 abalone
"Haliotis cracherodi" = Haliotis cracherodii Leach 1814 abalone
 Lepetellida - Fissurellidae
"Megatebennus bimaculata" = Fissurellidea bimaculata Dall 1871 snail
Diodora aspera Rathke 1833 snail
Megathura crenulata Sowerby 1825 snail
Fissurella volcano Reeve 1849 snail
 Trochoidea - Trochidae
"Halistylus subpupoideus" = Halistylus pupoideus, ""Tegula" montereyi" = Chlorostoma montereyi, "Tegula brunnea" = Chlorostoma brunnea, "Tegula funebralis" = Chlorostoma funebrale, Calliostoma ligatum
"Halistylus subpupoideus" = Halistylus pupoideus Carpenter 1864 top snail
""Tegula" montereyi" = Chlorostoma montereyi Kiener 1850 top snail
"Tegula brunnea" = Chlorostoma brunnea Philippi 1849 top snail
Also Tegula brunnea forma fluctuata
"Tegula funebralis" = Chlorostoma funebrale Adams 1855 top snail
Calliostoma ligatum Gould 1849 top snail
 Trochoidea - Liotiidae
Liotia fenestrata Carpenter 1864 snail
 Trochoidea - Turbinidae
"Homalopoma bacula" = Homalopoma (Homalopoma) baculum
"Homalopoma bacula" = Homalopoma (Homalopoma) baculum Carpenter 1864 snail
 Patellida - Lottiidae
Acmaea cassis, Acmaea mitra, "Acmaea asmi" = Lottia asmi, "Acmaea instabilis" = Lottia instabilis, "Acmaea scutum" = Lottia scutum, "Acmaea insessa" = Lottia insessa, "Acmaea digitalis" = Lottia digitalis, "Acmaea scabra" = Lottia scabra
Acmaea mitra Eschscholtz 1833 limpet
"Acmaea asmi" = Lottia asmi Middendorff 1847 limpet
"Acmaea instabilis" = Lottia instabilis Gould 1846 limpet
"Acmaea scutum" = Lottia scutum Eschscholtz 1833 limpet
"Acmaea insessa" = Lottia insessa Hinds 1842 limpet
"Acmaea digitalis" = Lottia digitalis Eschscholtz 1833 limpet
"Acmaea scabra" = Lottia scabra Gould 1846 limpet
 Neotaenioglossa - Calyptraeidae
Crepidula norrisiarum slipper shell
Crepidula adunca Sowerby 1824 slipper shell
"Crepidula lingulata" = Crepipatella lingulata Gould 1846 slipper shell
 Epitonioidea - Epitoniidae
"Opalia wroblewskyi" = Opalia borealis
"Opalia wroblewskyi" = Opalia borealis Gould 1852 wentletrap
Opalia wroblewskyi chacei
 Sorbeoconcha - Procerithiidae
"Bittium quadrifilatum" = Lirobittium quadrifilatum
"Bittium quadrifilatum" = Lirobittium quadrifilatum Carpenter 1863 snail
 Sorbeoconcha - Hipponicidae
Hipponix cranioides hoof shell
Hipponix antiquatus var. cranioides
Hipponix tumens Carpenter 1864 hoof shell
Hipponix antiquatus Linnaeus 1767 hoof shell
 Sorbeoconcha - Littorinidae
"Littorina planaxis" = Littorina (Neritrema) keenae, "Littorina scutulata" = Littorina (Littorina) scutulata
"Littorina planaxis" = Littorina (Neritrema) keenae Rosewater 1978 periwinkle
"Littorina scutulata" = Littorina (Littorina) scutulata Gould 1849 periwinkle
 Sorbeoconcha - Naticidae
 Sorbeoconcha - Cerithiopsidae
Seila montereyensis Bartsch 1907 snail
 Sorbeoconcha - Triphoridae
"Triphora pedroana" = Monophorus pedroanus, "Metaxia diadema" = Metaxia convexa
"Triphora pedroana" = Monophorus pedroanus Bartsch 1907 snail
"Metaxia diadema" = Metaxia convexa Cerpenter 1857 snail
 Neogastropoda - Columbellidae
Amphissa versicolor Dall 1871 snail
Mitrella tuberosa Carpenter 1864 snail
"Mitrella carinata" = Alia carinata Hinds 1844 dovesnail
 Neogastropoda - Nassariidae
"Nassarius fossatus" = Caesia fossatus, "Nassarius mendicus" = Hima mendica
"Nassarius fossatus" = Caesia fossatus Gould 1849 snail
"Nassarius mendicus" = Hima mendica Gould 1849 snail
Nassarius mendicus forma cooperi
 Neogastropoda - Buccinidae
"Kellettia kelletti" = Siphonalia (Kelletia)
"Kellettia kelletti" = Siphonalia (Kelletia) true whelk
 Neogastropoda -
"Mitromorpha aspera" = Cymakra aspera, "Mitromorpha gracilior" = Cymakra gracilior
"Mitromorpha aspera" = Cymakra aspera Carpenter 1864 snail
"Mitromorpha gracilior" = Cymakra gracilior Tryon 1884 snail
 Neogastropoda - Mitridae
Mitra gausapata mitre shell
Mitra carinata forma gausapata
"Mitra idae" = Mitra (Atrimitra) idae Melville 1893 mitre shell
 Neogastropoda - Mangeliidae
""Mangelia" rhyssa" = Cythara (Mangelia)
""Mangelia" rhyssa" = Cythara (Mangelia) snail
 Neogastropoda - Conidae
"Conus californicus" = Californiconus californicus
"Conus californicus" = Californiconus californicus Reeve 1844 cone shell
 Neogastropoda - Pseudomelatomidae
"Pseudomelatoma cf. moesta" = Pseudomelatoma penicillata
"Pseudomelatoma cf. moesta" = Pseudomelatoma penicillata Carpenter 1864 snail
 Neogastropoda - Olividae
"Olivella biplicata" = Callianax biplicata
"Olivella biplicata" = Callianax biplicata Sowerby 1825 olive snail
 Neogastropoda - Muricidae
"Ocinebra lurida" = Paciocinebrina lurida, "Acanthina spirata" = Acanthinucella spirata, "Acanthina lugubris" = Mexacanthina lugubris
"Ocinebra lurida" = Paciocinebrina lurida Middendorff 1848 murex snail
"Acanthina spirata" = Acanthinucella spirata Blainville 1832 murex snail
"Acanthina lugubris" = Mexacanthina lugubris Sowerby I 1822 murex snail
 Neogastropoda - Cystiscidae
"Cypraeolina pyriformis" = Granulina margaritula
"Cypraeolina pyriformis" = Granulina margaritula Carpenter 1857 snail
 Sorbeoconcha - Cypraeidae
"Zonaria spadicea" = Neobernaya spadicea
"Zonaria spadicea" = Neobernaya spadicea Swainson 1823 cowry
 Sorbeoconcha - Vermetidae
"Aletes squamigerus" = Thylacodes squamigerus
"Aletes squamigerus" = Thylacodes squamigerus Carpenter 1857 worm shell
 Vanikoroidea - Eulimidae
"Balcis thersites" = Melanella thersites
"Balcis thersites" = Melanella thersites Carpenter 1864 snail
Bivalvia
 Mytilida - Mytilidae
"Modiolus fornicatus" = Modiolus carpenteri, Septifer bifurcatus
"Modiolus fornicatus" = Modiolus carpenteri Soot-Ryen 1963 mussel
Septifer bifurcatus Conrad 1837 mussel
 Pectinida - Pectinoidae
"Hinnites multirugosus" = Crassadoma gigantea
"Hinnites multirugosus" = Crassadoma gigantea Gray 1825 scallop
 Pectinida - Anomiidae
 Arcida - Arcidae
Acar bailyi Bartsch 1931 miniature ark
 Arcida - Glycymerididae
"Glycymeris ? profunda" = Glycymeris septentrionalis
"Glycymeris ? profunda" = Glycymeris septentrionalis Middendorf 1849 clam
 Cardiida - Cardiidae
Clinocardium fucanum Dall 1907 cockle
 Cardiida - Semelidae
"Semele decisa" = Semele (Semele) decisa Conrad 1837 clam
Cumingia californica Conrad 1837 clam
 Cardiida - Tellinidae
"Tellina buttoni" = Ameritella modesta
"Tellina buttoni" = Ameritella modesta Carpenter 1864 tellin clam
 Cardiida - Chamidae
Chama pellucida Broderip 1835 jewel box
 Cardiida - Veneridae
"Irus lamellifer" = Irusella lamellifera, "Protothaca staminea" = Leukoma staminea, "Transennella tantilla" = Nutricola tantilla, "Petricola carditoides" = Petricola (Petricola) carditoides
"Irus lamellifer" = Irusella lamellifera Conrad 1837 venus clam
"Protothaca staminea" = Leukoma staminea Conrad 1837 venus clam
"Transennella tantilla" = Nutricola tantilla Gould 1853 venus clam
"Petricola carditoides" = Petricola (Petricola) carditoides Conrad 1837 venus clam
 Hiatellida - Hiatellidae
"Saxicava arctica" = Hiatella arctica
"Saxicava arctica" = Hiatella arctica Linnaeus 1767 clam
 Lucinida - Lucinidae
"Lucina californica" = Epilucina californica
"Lucina californica" = Epilucina californica Conrad 1837 clam
 Carditida - Carditidae
Glans carpenteri Lamy 1922 clam
Polyplacophora
 Chitonida - Callistoplacidae
Callistochiton crassicostatus Pilsbry 1893 chiton
Callistochiton palmulatus Dall 1879 chiton
Also Callistochiton palmulatus var. mirabilis
Callistochiton cf. decoratus Pilsbry 1896 chiton
Callistochiton cf. C. decoratus ferminicus
 Neoloricata - Acanthochitonidae
Cryptochiton stelleri Middendorf 1847 chiton
 Neoloricata - Mopaliidae
Mopalia cf. lignosa Gould 1846 chiton
Mopalia muscosa Gould 1846 chiton
 Neoloricata - Ischnochitonidae
Tonicella cf. lineata Wood 1815 lined red chiton
Lepidozona cooperi Carpenter 1879 chiton
Stenoplax heathiana Berry 1946 chiton
Malacostraca
 Decapoda - Cancridae
"Cancer (Romaleon) antennarius" = Romaleon antennarium
"Cancer (Romaleon) antennarius" = Romaleon antennarium Stimpson 1856 crab
Thecostraca
 Balanomorpha - Balanidae
"Balanus cf. californicus" = Balanus tintinnabulum californicus Pilsbry 1916 barnacle
Balanus cf. B. tintinnabulum californicus
Balanus cf. nubilus Darwin 1854 barnacle
 Balanomorpha - Tetraclitidae
Tetraclita rubescens Darwin 1854 barnacle
Tetraclita squamosa rubescens
Anthozoa
 Scleractinia - Dendrophylliidae
Balanophyllia elegans Verrill 1864 stony coral
Astraea undosa
  -
"Astraea undosa" = Megastraea undosa
"Astraea undosa" = Megastraea undosa Wood 1828