La Mision (Miocene of Mexico)

Also known as UCMP 71116; SDSC 452; Mesa La Mision; FCM locality LM-1

Where: Baja California, Mexico (32.1° N, 116.8° W: paleocoordinates 31.4° N, 112.1° W)

• coordinate based on unpublished field data

When: Los Indios Member (Rosarito Beach Formation), Langhian (16.0 - 13.8 Ma)

• middle Miocene; bed D; Barstovian; Langhian age after Aranda-Manteca et al 1994

• member-level stratigraphic resolution

Environment/lithology: offshore shelf; gray sandstone

• range from fluvatile and lacustrine to shallow open marine shelf
• light gray sandstone

Size class: macrofossils

Preservation: original phosphate

Primary reference: J. A. Minch, K. C. Schulte, and G. Hofman. 1970. A middle Miocene age for the Rosarito Beach Formation in Northwestern Baja California, Mexico. Geological Society of America BUlletin 81:3149-3154 [M. Uhen/M. Uhen]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 52183: authorized by Mark Uhen, entered by Mark Uhen on 29.07.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Radiolaria
  -
Radiolaria indet. Müller 1858 radiolarian
Bivalvia
 Arcida - Arcidae
 Pectinida - Pectinoidae
Lyropecten sp. Conrad 1862 scallop
 Ostreida - Pinnidae
Pinnidae indet. Leach 1819 oyster
 Cardiida - Veneridae
Chione (Chinopsis) sp. von Mühlfield 1811 venus clam
Chione (Chionopsis) temblorensis Anderson 1905 venus clam
? Clementia sp. Gray 1847 venus clam
 Lucinida - Lucinidae
? Divalinga sp. Chavan 1951 clam
Lucinisca sp. Dall 1901 clam
Gastropoda
 Neogastropoda - Cancellariidae
Cancellaria sp. Lamarck 1799 snail
 Neogastropoda - Conidae
Conus sp. Linnaeus 1758 cone shell
 Neogastropoda - Terebridae
"Terebra (Strioterebrum) sp." = Strioterebrum
"Terebra (Strioterebrum) sp." = Strioterebrum Sacco 1891 auger snail
n. sp.
 Naticoidea - Naticidae
Neverita sp. Risso 1826 moon snail
 Sorbeoconcha - Turritellidae
Turritella ocoyana Conrad 1855 turret shell
Chondrichthyes
 Squaliformes - Squalidae
Squalus sp.5 Linnaeus 1758 dogfish shark
 Squatiniformes - Squatinidae
Squatina sp.5 Dumeril 1806 angel shark
 Odontaspidida - Isuridae
"Isurus planus" = Oxyrhina plana
"Isurus planus" = Oxyrhina plana Agassiz 1856 mackerel shark
 Odontaspidida - Alopiidae
Alopias sp.5 Rafinesque 1810 thresher shark
 Myliobatiformes - Mobulidae
Mobula sp.5 Rafinesque 1810 devil ray
 Myliobatiformes - Gymnuridae
Gymnura sp.5 Van Hasselt 1823 stingray
 Myliobatiformes - Dasyatidae
Dasyatidae indet.5 Jordan 1888 whiptail stingray
 Myliobatiformes -
 Myliobatiformes - Myliobatidae
"Myliobatis sp." = Myliobatis, "Myliobatus sp." = Myliobatis1, Aetobatus sp.1, Pteromylaeus sp.1
"Myliobatis sp." = Myliobatis Cuvier 1816 eagle ray
"Myliobatus sp." = Myliobatis1 Cuvier 1816 eagle ray
Aetobatus sp.1 Blainville 1816 eagle ray
Pteromylaeus sp.1 Garman 1913 bull ray
 Rajiformes - Rhinobatidae
Rhinobatidae indet.5 Müller and Henle 1837 guitarfish
 Hexanchiformes - Hexanchidae
Hexanchidae indet.5 Gray 1851 cow shark
 Lamniformes - Otodontidae
"Carcharodon megalodon" = Otodus megalodon
"Carcharodon megalodon" = Otodus megalodon Agassiz 1843 megalodon
Also studied in Pimiento and Balk
 Lamniformes - Lamnidae
"Isurus hastalis" = Carcharodon hastalis
"Isurus hastalis" = Carcharodon hastalis Agassiz 1843 white shark
 Carchariniformes - Carcharhinidae
Carcharhinidae indet.5 Jordan and Evermann 1896 requiem shark
Negaprion sp. Whitley 1940 lemon shark
Galeocerdo sp. Müller and Henle 1837 tiger shark
Galeocerdo aduncus Agassiz 1843 tiger shark
? Carcharhinus sp. de Blainville 1816 requiem shark
Rhizoprionodon sp.5 Whitley 1929 sharpnose shark
 Carchariniformes - Sphyrnidae
Sphyrna sp. Rafinesque 1810 hammerhead shark
 Carchariniformes - Hemigaleidae
Hemipristis sp. Agassiz 1843 ground shark
Hemipristis serra Agassiz 1843 ground shark
 Carchariniformes - Triakidae
Mustelus sp.5 hound shark
Actinopteri
 Teleostei -
 Carangiformes - Carangidae
Carangidae indet.5 Rafinesque 1815
 Acanthomorphata - Sphyraenidae
Sphyraena sp.6 Walbaum 1792 barracuda
Sphyraena cf. barracuda5 Edwards 1771 barracuda
 Scombriformes - Scombridae
Acanthocybium sp.5 Gill 1862
Thunnus sp.1 South 1845
Thunnus cf. thynnus5 Linnaeus 1758
Euthynnus sp.5 Jordan and Gilbert 1882
Scomber sp.5 Linnaeus 1758
 Scombriformes - Trichiuridae
Trichiurus sp.1 Linnaeus 1758
 Perciformes -
Oplegnathus sp.5 Richardson 1840 perch-like fish
 Perciformes - Serranidae
Serranidae indet.5 Swainson 1839 perch-like fish
 Perciformes -
Calamus sp.1 Swainson 1839 perch-like fish
 Tetraodontiformes - Diodontidae
 Tetraodontiformes -
 Tetraodontiformes - Balistidae
 Siluriformes - Ariidae
Ariidae indet.5 Berg 1958 Ariid catfish
Reptilia
 Testudines - Dermochelyidae
"Dermochelidae sp." = Dermochelyidae1
"Dermochelidae sp." = Dermochelyidae1 Lydekker 1889 leatherback
 Testudines - Cheloniidae
Cheloniidae indet.1 Bonaparte 1832 sea turtle
 Testudines -
"Chelonia indet." = Testudines6
"Chelonia indet." = Testudines6 Batsch 1788 turtle
Aves
  -
Aves indet. Linnaeus 1758 bird
 Charadriiformes - Panalcidae
Alcidae indet.5 Leach 1820 auk
 Procellariiformes - Diomedeidae
Diomedea sp.1 Linnaeus 1758 albatross
 Procellariiformes - Procellariidae
Puffinus sp.5 Brisson 1760 shearwater
 Suliformes - Sulidae
Sula sp.1 Brisson 1760 booby
Morus sp.1 Vieillot 1816 gannet
Mammalia
 Sirenia - Sirenia
Sirenia indet.6 sirenian
 Sirenia - Dugongidae
Metaxytherium arctodites n. sp.3 Aranda-Manteca et al. 1994 dugong
 Perissodactyla - Desmostylidae
aff. Desmostylus sp.4 Marsh 1888 desmostylian
Desmostylus hesperus1 Marsh 1888 desmostylian
 Perissodactyla - Paleoparadoxiidae
"Paleoparadoxidae indet." = Paleoparadoxiidae4
"Paleoparadoxidae indet." = Paleoparadoxiidae4 Reinhart 1959 desmostylian
 Perissodactyla -
Jamilcotatus kumiaica n. gen. n. sp.2
Jamilcotatus kumiaica n. gen. n. sp.2 Aranda-Manteca and Barnes 1998 desmostylian
 Carnivora - Odobenidae
Neotherium sp.1 Kellogg 1931 walrus
aff. Neotherium sp.4 Kellogg 1931 walrus
 Carnivora - Desmatophocidae
Allodesmus sp.4 Kellogg 1922 pinniped
 Carnivora - Canidae
cf. Tomarctus sp.6 Cope 1873 bone-crushing dog
 Artiodactyla - Camelidae
Oxydactylus longipes Peterson 1904 camel
 Cetacea -
 Mysticeti -
 Mysticeti - Cetotheriidae
Cetotheriidae indet.6 Brandt 1872 whale
aff. Herpetocetus sp.4 Van Beneden 1872 whale
 Mysticeti -
aff. Parietobalaena sp.4 Kellogg 1924 whale
 Balaenopteroidea -
Tiphyocetus temblorensis7 Kellogg 1931 whale
 Odontoceti -
Platanistoidea indet.4 Simpson 1945 toothed whale
 Odontoceti - Physeteridae
Physeteridae indet.4 Gray 1821 sperm whale
 Odontoceti -
Liolithax aff. kernensis4 Kellogg 1931 toothed whale
 Odontoceti - Kentriodontidae
Delphinodon sp.1 Leidy 1869 toothed whale
aff. Kentriodon sp.4 Kellogg 1927 toothed whale
Lamprolithax sp.1 Kellogg 1931 toothed whale
Chrysophyceae
 Phytomastigophora - Dictyochaceae
Chrysophyta
  -
Bacillariophyceae indet. Haeckel 1878 diatom
Thalassionema
  -
Actinoptychus
  -
Actinoptychus sp.5 Ehrenberg 1839
Navicula
  -
Thalassiothrix
  -
Triceratium
  -
Diploneis
  -
Coscinodiscus
  -
Stephanogonia
  -
Actinocyclus
  -
Stephanopyxis
  -
Stephanopyxis sp.5 Ehrenberg 1845
Biddulphia
  -