Puente Formation
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| Puente Formation | |
|---|---|
| Stratigraphic range: | |
| Type | Geological formation |
| Unit of | Los Angeles Basin |
| Sub-units | (ascending) La Vida, Soquel, Yorba, Sycamore Canyon[1] |
| Underlies | |
| Overlies | |
| Thickness | About 3900 meters[2] |
| Lithology | |
| Primary | Sandstone, conglomerate & mudrock[2] |
| Location | |
| Region | File:Flag of California.svg California |
| Country | File:Flag of the United States.svg United States |
| Type section | |
| Named for | Puente Hills |
The Puente Formation is a geologic formation in California. It preserves fossils dating back to the middle to upper Miocene epoch of the Neogene period, most of which were deposited in a deepwater environment.[2] Owing to its depositional environment, it is one of the very few geologic formations to preserve articulated specimens of fossilized deep-sea anglerfish.[3]
As its name suggests, it primarily outcrops in the Puente Hills.[1]
Paleoecology
The Yorba Member of the Puente Formation preserves some of the world's only known fossils of deep-sea anglerfish, most of which were discovered during the construction of a rail line. These anglerfish are assigned to several genera and species that inhabit hypoxic, upwelling-influenced subtropical and tropical environments in the eastern Pacific today, suggesting that the composition of these ecological communities has changed little in the time since the deposition of this formation. These taxa are not found off the coast of California today, suggesting that the region was much warmer and more tropical during the late Miocene. The minimum depth of this depositional environment would have been about 1,000 metres (3,300 ft) deep.[4][5]
Paleobiota
Ray-finned fish
Based on Fierstine et al (2012):[3]
| Genus | Species | Location | Member | Material | Notes | Images |
|---|---|---|---|---|---|---|
| Acentrophryne | A. sp. | City of Industry, Pomona Freeway Chalk Hill | Yorba | Articulated skeleton | An leftvent deep-sea anglerfish.[6] | File:Acentrophryne longidens 2.png |
| Acipenseridae indet. | Subopercule | A sturgeon of uncertain affinities. | ||||
| Argentina | A. sp. | Pomona Freeway Chalk Hill | "Remains" | A herring smelt. | File:Argentina elongata (no common name).gif | |
| Argyropelecus | A. sp. | Pomona Freeway Chalk Hill | Unknown | A marine hatchetfish. | File:Argyropelecus olfersii1.jpg | |
| Atherinops | A. sp. | Pomona Freeway Chalk Hill | Unknown | A Neotropical silverside related to the modern topsmelt silverside. | File:Atherinops affinis.png | |
| Atherinopsis | A. sp. | Pomona Freeway Chalk Hill | Unknown | A Neotropical silverside related to the modern jack silverside. | File:FMIB 51053 California "Smelt" or Pescadillo.jpeg | |
| Bathylaginae indet. | Pomona Freeway Chalk Hill | Unknown | A deep-sea smelt. | |||
| Borophryne | B. cf. apogon | LACM Locality 6202 | Yorba | Complete articulated skeleton | A leftvent deep-sea anglerfish, potentially referable to the modern netdevil.[5] | File:Borophryne apogon.jpg |
| Chaenophryne | C. aff. melanorhabdus | LACM Locality 6202 | Yorba | 4 complete articulated skeletons | An oneirodid deep-sea anglerfish, potential affinities to the modern smooth dreamer.[5] | File:Chaenophryne longiceps 2-transformed.jpeg |
| Chauliodus | C. eximius | Pomona Freeway Chalk Hill | Unknown | A viperfish. | File:Chauliodus eximus LACM.jpg | |
| Cyclothone | C. sp. | Pomona Freeway Chalk Hill | Unknown | A bristlemouth. | File:Cyclothone microdon1.jpg | |
| Decapterus | D. cf. hopkinsi | Continental Oil Company “Turnbull” well number 3 | Lower | One scale; lost | A scad. | File:Decapterus punctatus.jpg |
| D. sp. | Pomona Freeway Chalk Hill | Unknown | ||||
| Etringus | E. scintillans | Puente Hills | Two scales; lost | A herring. | ||
| Ganoessus | G. clepsydra | Featherstone Quarry | Unknown | A herring. | ||
| G. meiklejohni | Featherstone Quarry | Articulated skeleton | ||||
| Ganolytes | G. cameo | Pomona Freeway Chalk Hill | Unknown | A herring. | ||
| Genyonemus | G. whistleri | Pomona Freeway Chalk Hill | Partial articulated specimen. | A drumfish related to the white croaker. | File:Genyonemus lineatus mspc102.jpg | |
| Lampanyctus | L. sp. | Pomona Freeway Chalk Hill | ">100 otoliths and several skeletal imprints with otoliths" | A lanternfish. | File:Lampanyctus macdonaldi.jpg | |
| Leptacanthichthys | L. cf. gracilispinis | LACM Locality 6202 | Yorba | Articulated skeleton | An oneirodid deep-sea anglerfish, potentially referable to the modern plainchin dreamarm.[5] | File:Leptacanthichthys gracilispinis.JPG |
| Linophryne | L. cf. indica | LACM Locality 6202 | Yorba | Articulated skeleton | A leftvent deep-sea anglerfish, potentially referable to the modern headlight angler.[5] | File:L indica.JPG |
| Lompoquia | L. sp. | Upper | Unknown | A drumfish. | File:Lompoquia retropes.JPG | |
| Molidae indet. | An ocean sunfish of uncertain affinities. | |||||
| Moridae indet. | Pomona Freeway Chalk Hill | Unknown | A codling of uncertain affinities. | |||
| Oneirodes | O. sp. | LACM Locality 6202 | Yorba | Articulated incomplete skeleton | An oneirodid deep-sea anglerfish. | File:Oneirodes macronema.JPG |
| Paralabrax | P. sp. | Pomona Freeway Chalk Hill | Unknown | A sand bass. | File:Paralabrax clathratus 2.jpg | |
| Pseudoseriola | P. gilliandi | A relative of the bluefish. | ||||
| Sarda | S. stockii | Union Oil Company “Chapman” well number 29 | Lower | 2 scales | A bonito. | File:Sarda sarda.jpg |
| Scomber | S. cf. japonicus | Continental Oil Company “Turnbull” well number 3 | Lower | 1 scale, lost | A mackerel, potentially referable to the modern chub mackerel. | File:Scomber japonicus.png |
| S. sp. | Pomona Freeway Chalk Hill | Unknown | A mackerel. | |||
| Seriphus | S. lavenbergi | City of Industry | Yorba | Disarticulated skull with otolith | A drumfish related to the queenfish. | File:Seriphus politus Mspc094.jpg |
| Symphurus | S. sp. | Santiago Road Overcrossing | La Vida | 6 partial skeletons | A tonguefish. | File:Symphurus pusillus.jpg |
| Syngnathus | S. emeritus | San Dimas | Several articulated skeletons | A pipefish. | File:Syngnathus rostellatus.jpg | |
| Thyrsocles | T. kriegeri | Pomona Freeway Chalk Hill | Unknown | A euzaphlegid. | File:Euzaphlegidae.JPG | |
| Xyne | X. grex | Pomona Freeway Chalk Hill | Unknown | A herring. | ||
| ?Xyrinius | X. houshi | "Los Angeles" | Unknown | A herring, from either the Monterey or Puente Formations. Potentially conspecific with Xyne grex. | ||
| Zanteclites | Z. hubbsi | Covina, El Modena | 6 specimens | A Neotropical silverside. |
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See also
- List of fossiliferous stratigraphic units in California
- Paleontology in California
- La Vida Mineral Springs
References
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 "Geolex — Puente publications". ngmdb.usgs.gov. Retrieved 2024-11-29.
- ↑ 2.0 2.1 2.2 2.3 2.4 Salvatore Critelli, Peter E. Rumelh (January 1994). "Composition and Provenance of the Puente Formation (Miocene), Los Angeles Basin". AAPG Bulletin. 78. doi:10.1306/bdff9302-1718-11d7-8645000102c1865d. ISSN 0149-1423.
- ↑ 3.0 3.1 California Academy of Sciences (1890). Occasional papers of the California Academy of Sciences. California Academy of Sciences. San Francisco : California Academy of Sciences.
- ↑ Cite error: Invalid
<ref>tag; no text was provided for refs namedGeolex2 - ↑ 5.0 5.1 5.2 5.3 5.4 Carnevale, Giorgio; Pietsch, Theodore W.; Takeuchi, Gary T.; Huddleston, Richard W. (2008). "Fossil ceratioid anglerfishes (Teleostei: Lophiiformes) from the Miocene of the Los Angeles Basin, California". Journal of Paleontology. 82 (5): 996–1008. doi:10.1666/07-113.1. ISSN 0022-3360.
- ↑ Carnevale, Giorgio; Pietsch, Theodore W. (2009-06-12). "The deep-sea anglerfish genus Acentrophryne (Teleostei, Ceratioidei, Linophrynidae) in the Miocene of California". Journal of Vertebrate Paleontology. 29 (2): 372–378. doi:10.1671/039.029.0232. ISSN 0272-4634.
- Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 17 December 2021.
