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Santiago - C, San Diego County, California, USA

FormationSantiago
MemberC
Age:40.4 - 37.2 Ma
Eocene
IntervalUintan
Lithologysiliciclastic, sandstone, siltstone
Number of Collections14
Number of Occurrences50

Recorded Sample Locations

LocationRegionStratigraphic Name
Airport Business Center II Site 2 San Diego County, California, USASantiago - C
College Boulevard Site 14 San Diego County, California, USASantiago - C
Mission del Oro Site 3 San Diego County, California, USASantiago - C
Tamarack Avenue San Diego County, California, USASantiago - C
Kelly's Ranch San Diego County, California, USASantiago - C
Mission del Oro San Diego County, California, USASantiago - C
Ocean Ranch Phase 2A Bone SandsSan Diego County, California, USASantiago - C
Kelly Ranch Core San Diego County, California, USASantiago - C

Associated Units

Stratigraphic NameAgeLithologyOccurrence Records
Friars - Conglomerate Tongue46.2 - 40.4 Ma
Eocene
siliciclastic58
Friars - Lower Tongue46.2 - 40.4 Ma
Eocene
siliciclastic59
Friars - Upper Tongue46.2 - 40.4 Ma
Eocene
258
Imperial4.90 - 1.80 Ma
Cenozoic
limestone, sandstone, sandstone/conglomerate, sandstone/"limestone", "limestone"/sandstone106
Mission Valley46.2 - 40.4 Ma
Eocene
siltstone, sandstone145
Ocotillo1.80 - 0.30 Ma
Pleistocene
15
Ocotillo - upper Inspiration Wash1.80 - 0.30 Ma
Pleistocene
5
Otay30.8 - 20.4 Ma
Cenozoic
18
Palm Spring - Diablo/Olla4.90 - 1.80 Ma
Cenozoic
118
Palm Spring - Huesos/Tapiado1.80 - 0.30 Ma
Pleistocene
429
Pomerado - Miramar46.2 - 40.4 Ma
Eocene
sandstone1
San Diego3.60 - 1.80 Ma
Cenozoic
sandstone, siltstone, conglomerate, "shale"237
San Mateo - lower white sandstone unit23.0 - 5.33 Ma
Miocene
1
Santiago28.4 - 23.0 Ma
Cenozoic
siltstone, "limestone", sandstone/siltstone246
Santiago - B46.2 - 37.2 Ma
Eocene
sandstone, "siliciclastic", siltstone34
La Jolla - Friars46.2 - 40.4 Ma
Eocene
conglomerate, "siliciclastic", siltstone222
La Jolla - Friars - Upper Tongue46.2 - 40.4 Ma
Eocene
35
Poway - Stadium Conglomerate - middle sandstone46.2 - 40.4 Ma
Eocene
sandstone1

Recorded Fossils

Accepted NameHierarchyAge
Simidectes medius
species
7Animalia : Chordata : Mammalia : Acreodi : Simidectes : Simidectes medius46.2 - 40.4 Ma
Eocene
Agriochoerus pumilus
species
7Animalia : Chordata : Mammalia : Artiodactyla : Agriochoeridae : Protoreodon : Agriochoerus pumilus40.4 - 37.2 Ma
Eocene
Protoreodon walshi
species
7Animalia : Chordata : Mammalia : Artiodactyla : Agriochoeridae : Protoreodon : Protoreodon walshi46.2 - 40.4 Ma
Eocene
Hyopsodus egressus
species
7Animalia : Chordata : Mammalia : Artiodactyla : Antiacodontidae : Tapochoerus : Hyopsodus egressus46.2 - 40.4 Ma
Eocene
Protylopus robustus
species
7Animalia : Chordata : Mammalia : Artiodactyla : Oromerycidae : Protylopus : Protylopus robustus46.2 - 40.4 Ma
Eocene
Protylopus stocki
species
7Animalia : Chordata : Mammalia : Artiodactyla : Oromerycidae : Protylopus : Protylopus stocki46.2 - 40.4 Ma
Eocene
Leptoreodon sp.
genus
6Animalia : Chordata : Mammalia : Artiodactyla : Protoceratidae : Leptoreodon46.2 - 40.4 Ma
Eocene
Leptoreodon leptolophus
species
7Animalia : Chordata : Mammalia : Artiodactyla : Protoceratidae : Leptoreodon : Leptoreodon leptolophus46.2 - 40.4 Ma
Eocene
Leptoreodon stocki
species
7Animalia : Chordata : Mammalia : Artiodactyla : Protoceratidae : Leptoreodon : Leptoreodon stocki40.4 - 37.2 Ma
Eocene
Lycophocyon hutchisoni
species
7Animalia : Chordata : Mammalia : Carnivora : Lycophocyon : Lycophocyon hutchisoni40.4 - 37.2 Ma
Eocene
Proterixoides sp.
genus
6Animalia : Chordata : Mammalia : Erinaceomorpha : Amphilemuridae : Proterixoides46.2 - 40.4 Ma
Eocene
Proterixoides davisi
species
7Animalia : Chordata : Mammalia : Erinaceomorpha : Amphilemuridae : Proterixoides : Proterixoides davisi46.2 - 40.4 Ma
Eocene
Sespedectes sp.
genus
6Animalia : Chordata : Mammalia : Erinaceomorpha : Amphilemuridae : Sespedectes46.2 - 40.4 Ma
Eocene
Peradectes californicus
species
7Animalia : Chordata : Mammalia : Peradectidae : Peradectes : Peradectes californicus46.2 - 40.4 Ma
Eocene
Rhinocerotoidea
superfamily
4.7Animalia : Chordata : Mammalia : Perissodactyla : Rhinocerotoidea46.2 - 40.4 Ma
Eocene
Amynodon advenus
species
7Animalia : Chordata : Mammalia : Perissodactyla : Amynodontidae : Amynodon : Amynodon advenus46.2 - 40.4 Ma
Eocene
Amynodontopsis bodei
species
7Animalia : Chordata : Mammalia : Perissodactyla : Amynodontidae : Amynodontopsis : Amynodontopsis bodei40.4 - 37.2 Ma
Eocene
Duchesneodus sp.
genus
6Animalia : Chordata : Mammalia : Perissodactyla : Brontotheriidae : Duchesneodus46.2 - 40.4 Ma
Eocene
Duchesneodus uintensis
species
7Animalia : Chordata : Mammalia : Perissodactyla : Brontotheriidae : Duchesneodus : Duchesneodus uintensis40.4 - 37.2 Ma
Eocene
Parvicornus occidentalis
species
7Animalia : Chordata : Mammalia : Perissodactyla : Brontotheriidae : Parvicornus : Parvicornus occidentalis40.4 - 37.2 Ma
Eocene
Epihippus sp.
genus
6Animalia : Chordata : Mammalia : Perissodactyla : Equidae : Epihippus46.2 - 40.4 Ma
Eocene
Hesperaletes sp.
genus
6Animalia : Chordata : Mammalia : Perissodactyla : Tapiridae : Hesperaletes40.4 - 37.2 Ma
Eocene
Hesperaletes borineyi
species
7Animalia : Chordata : Mammalia : Perissodactyla : Tapiridae : Hesperaletes : Hesperaletes borineyi46.2 - 40.4 Ma
Eocene
Ourayia sp.
genus
6Animalia : Chordata : Mammalia : Primates : Anaptomorphidae : Ourayia46.2 - 40.4 Ma
Eocene
Walshina esmaraldensis
species
7Animalia : Chordata : Mammalia : Primates : Omomyidae : Walshina : Walshina esmaraldensis46.2 - 40.4 Ma
Eocene
Pareumys sp.
genus
6Animalia : Chordata : Mammalia : Rodentia : Cylindrodontidae : Pareumys46.2 - 40.4 Ma
Eocene
Metanoiamys sp.
genus
6Animalia : Chordata : Mammalia : Rodentia : Eomyidae : Metanoiamys46.2 - 40.4 Ma
Eocene
Eohaplomys serus
species
7Animalia : Chordata : Mammalia : Rodentia : Ischyromyidae : Eohaplomys : Eohaplomys serus46.2 - 40.4 Ma
Eocene
Microparamys sp.
genus
6Animalia : Chordata : Mammalia : Rodentia : Ischyromyidae : Microparamys46.2 - 40.4 Ma
Eocene
Leptotomus burkei
species
7Animalia : Chordata : Mammalia : Rodentia : Ischyromyidae : Mytonomys : Leptotomus burkei46.2 - 40.4 Ma
Eocene
Griphomys sp.
genus
6Animalia : Chordata : Mammalia : Rodentia : Gliridae : Griphomys46.2 - 40.4 Ma
Eocene
Simimys sp.
genus
6Animalia : Chordata : Mammalia : Rodentia : Simimyidae : Simimys46.2 - 40.4 Ma
Eocene
Eumysops simplex
species
7Animalia : Chordata : Mammalia : Rodentia : Simimyidae : Simimys : Eumysops simplex46.2 - 40.4 Ma
Eocene

References

Walsh S. L. (1991) Eocene mammal faunas of San Diego County, Pacific Section SEPM 68, 161-178
Walsh S. L. (1996) Middle Eocene mammal faunas of San Diego County, California, The Terrestrial Eocene-Oligocene Transition in North America, 74-119
Theodor J. M. (1999) Protoreodon walshi, a new species of agriochoerid (Oreodonta, Artiodactyla, Mammalia) from the late Uintan of San Diego County, California, Journal of Paleontology 73 6, 1179-1190
Walsh S. L. (2000) Bunodont artiodactyls (Mammalia) from the Uintan (middle Eocene) of San Diego County, California, Proceedings of the San Diego Society of Natural History 37, 1-27
Alroy J. (2002) Synonymies and reidentifications of North American fossil mammals
Colbert M. W. (2006) Hesperaletes (Mammalia : Perissodactyla), a new tapiroid from the middle Eocene of southern California, Journal of Vertebrate Paleontology 26 3, 697-711 doi:10.1671/0272-4634(2006)26[697:HMPANT]2.0.CO;2
Mihlbachler M. C., Dem茅r茅 T. A. (2009) A New Species of Brontotheriidae (Perissodactyla, Mammalia) from the Santiago Formation (Duchesnean, Middle Eocene) of Southern California, Proceedings of the San Diego Society of Natural History 41, 1-36
Tomiya S. (2011) A new basal caniform (Mammalia: Carnivora) from the middle Eocene of North America and remarks on the phylogeny of early carnivorans, PLoS ONE 6 9, e24146 doi:10.1371/journal.pone.0024146
L贸pez-Torres S., Silcox M. T., et al (2018) New omomyoids (Euprimates, Mammalia) from the late Uintan of southern California, USA, and the question of the extinction of the Paromomyidae (Plesiadapiformes, Primates), Palaeontologia Electronica 21.3.37A, 1-28 doi:10.26879/756
Data courtesy of: PBDB: The Paleobiology Database, Creative Commons CC-BY licenced. , GBIF: the Global Biodiversity Information Facility, various licences, iDigBio, various licences, and EOL: The Encyclopedia of Life (Open Data Public Domain). Because fossils are made of minerals too!
 
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