Laguna Niguel: Tortonian, California
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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unclassified
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Smilodonicthyes rastrosus
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Barnes et al. 1985 | |||||||||
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Paralichthyes sp.
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Barnes et al. 1985 | |||||||||
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Actinopteri
- Perciformes
- Serranidae
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Serranidae spp.
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Barnes et al. 1985 | |||||||||
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Epinephelus sp.
Bloch 1793
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Barnes et al. 1985 | |||||||||
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Actinopteri
- Sciaenidae
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Sciaenidae indet.
(Cuvier 1828)
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Barnes et al. 1985 | |||||||||
| original and current combination Sciaenoidei | ||||||||||
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Actinopteri
- Labriformes
- Labridae
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Pimelometopon sp.
Gill 1864
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Barnes et al. 1985 | |||||||||
| synonym of Semicossyphus | ||||||||||
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Actinopteri
- Scombriformes
- Scombridae
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Scombridae indet.
(Rafinesque 1815)
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Barnes et al. 1985 | |||||||||
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Actinopteri
- Carangiformes
- Carangidae
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Carangidae indet.
Rafinesque 1815
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Barnes et al. 1985 | |||||||||
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Amphibia
- Temnospondyli
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Anura indet.
(Fischer von Waldheim 1813)
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Barnes et al. 1985 | |||||||||
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Mammalia
- Sirenia
- Dugongidae
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Dusisiren sp.
Domning 1978
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Parham et al. 2022 | |||||||||
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Dusisiren cf. jordani
(Kellogg 1925)
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Barnes et al. 1985 | |||||||||
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Mammalia
- Carnivora
- Phocidae
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Monachinae indet.
Trouessart 1897
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Velez-Juarbe and Valenzuela-Toro 2019 | |||||||||
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Mammalia
- Carnivora
- Otariidae
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Otariidae indet.
(Gray 1825)
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Barnes et al. 1985 | |||||||||
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Pithanotaria starri
Kellogg 1925
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Barnes et al. 1985 | |||||||||
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Mammalia
- Carnivora
- Odobenidae
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Odobenidae indet.
(Allen 1880)
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Velez-Juarbe and Valenzuela-Toro 2019 | |||||||||
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cf. Pontolis sp.
True 1905
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Barnes et al. 1985 | |||||||||
| new species | ||||||||||
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Imagotaria downsi
Mitchell 1968
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Barnes et al. 1985 | |||||||||
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= Imagotaria cf. downsi
Mitchell 1968
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Velez-Juarbe and Valenzuela-Toro 2019 | |||||||||
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cf. Imagotaria downsi
Mitchell 1968
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Parham et al. 2022 | |||||||||
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Mammalia
- Artiodactyla
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Artiodactyla indet.
Owen 1848
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Barnes et al. 1985 | |||||||||
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Mammalia
- Cetacea
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Mysticeti indet.
Cope 1891
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Parham et al. 2022 | |||||||||
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Mammalia
- Cetacea
- Cetotheriidae
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Cetotheriidae indet.
(Brandt 1872)
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Barnes et al. 1985 | |||||||||
| large cetothere | ||||||||||
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= Herpetocetinae indet.
Steeman 2007
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Velez-Juarbe and Valenzuela-Toro 2019 | |||||||||
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Herpetocetinae indet.
Steeman 2007
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Parham et al. 2022 | |||||||||
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? Nannocetus sp.
Kellogg 1929
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Barnes et al. 1985 | |||||||||
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Mammalia
- Cetacea
- Balaenopteridae
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Balaenopteridae indet.
Gray 1864
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Barnes et al. 1985 | |||||||||
| small and large rorquals | ||||||||||
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Mammalia
- Cetacea
- Tranatocetidae
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Mixocetus sp.
Kellogg 1934
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Ventimiglia 2010 | |||||||||
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Mammalia
- Cetacea
- Ziphiidae
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aff. Messapicetus sp.
Bianucci et al. 1992
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Parham et al. 2022 | |||||||||
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Mammalia
- Cetacea
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Panphyseteroidea indet.
Velez-Juarbe et al. 2015
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Parham et al. 2022 | |||||||||
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Pithanodelphis sp.
Abel 1905
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Barnes et al. 1985 | |||||||||
| new species | ||||||||||
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Atocetus nasalis
(Barnes 1985)
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Velez-Juarbe and Valenzuela-Toro 2019 | |||||||||
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Mammalia
- Cetacea
- Monodontidae
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Delphinapterinae indet.
Gill 1871
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Barnes et al. 1985 | |||||||||
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Mammalia
- Cetacea
- Albireonidae
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Albireonidae indet.
Barnes 1984
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Parham et al. 2022 | |||||||||
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Mammalia
- Cetacea
- Phocoenidae
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Piscolithax sp.
Muizon 1983
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Barnes et al. 1985 | |||||||||
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= Piscolithax cf. tedfordi
Barnes 1984
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Velez-Juarbe and Valenzuela-Toro 2019 | |||||||||
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Mammalia
- Cetacea
- Kogiidae
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Kogiidae indet.
Miller 1923
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Parham et al. 2022 | |||||||||
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Reptilia
- Testudines
- Dermochelyidae
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aff. Dermochelys sp.
de Blainville 1816
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Barnes et al. 1985 | |||||||||
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Reptilia
- Odontopterygiformes
- Pelagornithidae
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Osteodontornis orri
Howard 1957
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Howard 1978 | |||||||||
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Reptilia
- Charadriiformes
- Alcidae
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? Uria sp.
Brisson 1760
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Howard 1978 | |||||||||
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? Cepphus sp.
Moehring 1758
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Howard 1978 | |||||||||
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Praemancalla wetmorei n. sp.
Howard 1976
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6 specimens | |||||||||
| recombined as Miomancalla wetmorei | ||||||||||
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? Aethia sp.
Merrem 1788
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Howard 1978 | |||||||||
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Fraterculini indet.
Storer 1960
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Howard 1978 | |||||||||
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Reptilia
- Gaviidae
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Gavia brodkorbi n. sp.
Howard 1978
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Howard 1978 | |||||||||
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Reptilia
- Procellariidae
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Puffinus barnesi n. sp.
Howard 1978
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Howard 1978 | |||||||||
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Reptilia
- Diomedeidae
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Diomedea sp.
Linnaeus 1758
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Howard 1978 | |||||||||
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Diomedea ? californica
Miller 1962
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Howard 1978 | |||||||||
| synonym of Phoebastria anglica | ||||||||||
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Reptilia
- Hydrobatidae
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Oceanodroma sp.
Reichenbach 1950
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Howard 1978 | |||||||||
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Reptilia
- Suliformes
- Sulidae
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Sulidae indet.
Reichenbach 1849
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Howard 1978 | |||||||||
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Morus lompocanus
(Miller 1925)
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Howard 1978 | |||||||||
| recombined as Moris lompocana | ||||||||||
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Morus magnus n. sp.
Howard 1978
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Howard 1978 | |||||||||
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? Miosula media
Miller 1925
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Howard 1978 | |||||||||
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Chondrichthyes
- Lamniformes
- Otodontidae
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Carcharodon megalodon
(Agassiz 1835)
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Barnes et al. 1985 | |||||||||
| recombined as Otodus megalodon | ||||||||||
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Chondrichthyes
- Lamniformes
- Lamnidae
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Isurus hastalis
(Agassiz 1838)
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Barnes et al. 1985 | |||||||||
| recombined as Carcharodon hastalis | ||||||||||
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Chondrichthyes
- Carcharhiniformes
- Sphyrnidae
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Sphyrna sp.
Rafinesque 1810
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Barnes et al. 1985 | |||||||||
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Chondrichthyes
- Squalomorphii
- Hexanchidae
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Hexanchus sp.
Rafinesque 1810
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Barnes et al. 1985 | |||||||||
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Chondrichthyes
- Myliobatiformes
- Myliobatidae
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Myliobatidae indet.
Bonaparte 1838
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Barnes et al. 1985 | |||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | California | County: | Orange |
| Coordinates: | 33.6° North, 117.7° West (view map) | ||||
| Paleocoordinates: | 33.1° North, 114.9° West | ||||
| Basis of coordinate: | stated in text | ||||
| Geographic resolution: | local area |
Time
| Period: | Neogene | Epoch: | Miocene |
| Stage: | Tortonian | 10 m.y. bin: | Cenozoic 6 |
| *Period: | Late/Upper Tertiary | *Epoch: | Late/Upper Miocene |
| Key time interval: | Tortonian | ||
| Age range of interval: | 11.63000 - 7.24600 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Formation: | Monterey | ||||
| Stratigraphic resolution: | formation | ||||
| Stratigraphy comments: Domning (1978) indicates this collection is latest Miocene-early Pliocene, but Barnes et al., 1985 state it is approximately 10 Ma.
In Southern California the Monterey Formation ranges from the mid Langhian to earliest Messinian (14.9 – 7.1 Ma) [16–18]. Microfossils (diatoms and silicoflagellates) recovered from LACM Loc. 6901, a diatomaceous unit that is stratigraphically below Loc. 6902 [11], are part of the lower Thalassiosira antiqua Subzone a, which ranges from 8.5 to 7.7 Ma [18]. This gives LACM Loc. 6902 an age between 8.5 and 7.1 Ma (late Tortonian–earliest Messinian [19]) (Velez-Juarbe & Valenzuela-Toro, 2019). This has been clarified by Parham et al 2022 to be late Tortonian | |||||
Lithology and environment
| Primary lithology: | yellow sandstone |
| Secondary lithology: | planar lamination,gray "shale" |
| Includes fossils? | Y |
| Lithology description: Type locality LACM 6906 "in yellow sands and laminated gray shale" LACM locality 6902 "in coarse yellow sand overlying laminated gray shale" LACM locality 3185 "in coarse yellow sand" | |
| Environment: | basinal (siliciclastic) |
| Geology comments: deep Pacific basin | |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
| Preservation of anatomical detail: | good |
| Disassociated major elements: | some |
Collection methods and comments
| Collection excludes: | some macrofossils |
| Collection methods: | surface (float),field collection |
| Collection size: | 6 specimens |
| Reason for describing collection: | general faunal/floral analysis |
| Museum repositories: | LACM |
| Collection method comments: Bird fossils described in this paper are LACM specimens and derive from LACM localities previously in Laguna Niguel. Associated with marine mammals. | |
Metadata
| Also known as: | LACM localities 6906, 6902, and 3185; Aliso Creek; El Lazo Road | ||
| Database number: | 13300 | ||
| Authorizer: | J. Hunter, M. Uhen | Enterer: | J. Hunter, M. Uhen |
| Modifier: | M. Uhen | Research group: | vertebrate |
| Created: | 2002-02-19 12:55:01 | Last modified: | 2022-05-02 14:23:47 |
| Access level: | the public | Released: | 2002-02-19 12:55:01 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 4418. | 5% 36240 | H. Howard. 1976. A new species of flightless auk from the Miocene of California (Alcidae: Mancallinae). Smithsonian Contributions to Paleobiology 27:141-146 [J. Hunter/J. Hunter/M. Uhen] |
Secondary references:
| 35405 | L. G. Barnes, S. A. McLeod, and R. E. Rashke. 1985. A late Miocene marine vertebrate assemblage from Southern California. National Geographic Society Research Reports 21:13-20 [M. Uhen/M. Uhen] | |
| 35406 | H. Howard. 1978. Late Miocene marine birds from Orange County, California. Natural History Museum of Los Angeles County Contributions in Science 290:1-26 [M. Uhen/M. Uhen] | |
| 40896 | I. Magallanes, J. F. Parham, G.-P. Santos and J. Velez-Juarbe. 2018. A new tuskless walrus from the Miocene of Orange County, California, with comments on the diversity and taxonomy of odobenids. PeerJ 6:e5708 [M. Uhen/M. Shalap/M. Uhen] | |
| 81499 | J. F. Parham, J. A. Barron, and J. Velez-Juarbe. 2022. Middle and late Miocene marine mammal assemblages from the Monterey Formation of Orange County, California. Geological Society of America Special Paper 556 [M. Uhen/M. Uhen] | |
| 64134 | J. Velez-Juarbe and A. M. Valenzuela-Toro. 2019. Oldest record of monk seals from the North Pacific and biogeographic implications. Biology Letters 15:1-6 [M. Uhen/M. Uhen/M. Uhen] | |
| 81501 | M. P. Ventimiglia. 2010. A New Miocene Cetothere (Mammalia, Cetacea) from the Monterey Formation at Laguna Niguel, Orange County. [M. Uhen/M. Uhen] |