Lagunitas Formation, Cuba
{{Infobox rockunit
| name = Lagunitas Formation
| image =
| caption =
| type = Formation
| period = Burdigalian
| age = Burdigalian (Hemingfordian)
| prilithology = Claystone, limestone
| otherlithology = Conglomerate
| namedfor =
| namedby = Popov
| region = Sancti Spíritus Province
| country = {{CUB}}
| coordinates = {{coord|21.6|N|79.5|W|display=inline,title}}
| paleocoordinates = {{coord|21.9|N|75.7|W|display=inline}}
| unitof =
| subunits =
| underlies = Güines Formation
| overlies = Las Cuevas Formation
| thickness =
| extent =
| area =
| map = {{Location map+ | Cuba
| relief = 1
| width = 200
| float = center
| places =
{{Location map~ | Cuba
| lat_deg = 21.6
| lon_deg = -79.5
| mark = Yellow pog.svg
| marksize = 12
}}
}}
| map_caption =
}}
The Lagunitas Formation is a geologic formation in Cuba. The open marine, fluvio-deltaic and lagoonal claystones, limestones and conglomerates preserve fossils dating back to the Early Miocene period.[https://paleobiodb.org/classic/displayStrata?geological_group=&formation=Lagunitas&group_formation_member=Lagunitas Lagunitas Formation] at Fossilworks.org Among others, the fossil primate Paralouatta marianae, the largest primate of the Miocene New World, was found in the formation.MacPhee et al., 2003, p.16 Based on microfossils, the age has been determined as Burdigalian.MacPhee et al., 2003, p.1
Description
The type locality designated by Popov is a small outcrop located {{convert|1.2|to|3.0|km|mi}} east of Trinidad, on the highway linking Trinidad and Banao. The youngest lithostratigraphic unit overlain by Lagunitas is the Oligocene Las Cuevas Formation in the type section. Lagunitas is in turn overlain by the Middle Miocene Güines Formation and younger sediments.MacPhee et al., 2003, p.6
= Regional correlation =
Partial temporal and lithological equivalents of the Lagunitas Formation situated elsewhere in Cuba include the Arabos, Paso Real, Rosario and Magantilla Formations. In Hispaniola, the formation can be roughly correlated in age and lithology
with the Maissade and Yanigua Formations. In Puerto Rico the most similar unit is the Cibao Formation.MacPhee et al., 2003, p.7
Vertebrate fossil content
{{div col|colwidth=20em}}
- Hemipristis serraIturralde Vinent et al., 1996, p.20
- Imagocnus zazaeMacPhee et al., 2003, p.4
- Negaprion brevirostrisIturralde Vinent et al., 1996, p.21
- Paralouatta marianae
- Sphyrna mokarran
- Zazamys veronicae
- Metaxytherium sp.
- Myliobatis sp.
- Odontoceti indet.
- Pelomedusoides indet.
{{div col end}}
See also
References
{{reflist|20em}}
= Bibliography =
- {{citation |last=Bermúdez |first=Pedro J |year=1961 |title=Las formaciones geológicas de Cuba |url=http://paleoarchive.com/literature/Bermudez1961-FormacionesGeologicasCuba.pdf |journal=Geología Cubana |volume=1 |pages=1–180 |accessdate=2019-02-06}}
- {{citation |last1=Iturralde Vinent |first1=Manuel |last2=Hubbell |first2=G. |last3=Rojas |first3=R. |year=1996 |title=Catalogue of Cuban fossil Elasmobranchii (Paleocene to Pliocene) and paleogeographic implications of their Lower to Middle Miocene occurrence |url=http://www.redciencia.cu/geobiblio/paper/1996_Iturralde_Hubbell_Rojas_Catalogue%20of%20Cuban%20fossil%20Elasmobranchii.pdf |journal=Boletín de la Sociedad Jamaicana de Geología |volume=31 |pages=7–21 |accessdate=2019-02-06}}
- {{citation |last1=MacPhee |first1=R.D.E. |last2=M.A. |first2=Iturralde Vinent |last3=Gaffney |first3=E.S. |year=2003 |title=Domo de Zaza, an Early Miocene vertebrate locality in south-central Cuba, with notes on the tectonic evolution of Puerto Rico and the Mona Passage |url=http://digitallibrary.amnh.org/bitstream/handle/2246/2820//v2/dspace/ingest/pdfSource/nov/N3394.pdf?sequence=1&isAllowed=y |journal=American Museum Novitates |issue=3394 |pages=1–42 |accessdate=2019-02-06}}
Category:Geologic formations of Cuba