Oligocene Age of the Classic Belén Fruit and Seed Assemblage of North Coastal Peru based on Diatom Biostratigraphy

Manchester, Steven R.; Herrera, Fabiany; Fourtanier, Elisabeth; Barron, John A.; Martinez, Jean-Noël

doi:10.1086/665797

Cited by 16 publications

(22 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…We found a single hill with both fossiliferous and non-fossiliferous carbonate crusts embedded in greyish marls at 4°44.239′S, 81°12.935′W (Fig. 1), about 2.5 km NE of the Belén fruit site (Manchester et al 2012).…”

Section: The Depositsmentioning

confidence: 93%

“…Recent work on the diatoms from the Belén fruit site provided an early Oligocene age (Manchester et al . ). Thus, we infer that the Belén seep site is just slightly younger than the fruit site and is most likely of late early‐to‐early late Oligocene age.…”

Section: The Depositsmentioning

confidence: 97%

“…All three places were settlements related to the initial oil boom in the early 1900s and remnants of Lagunitas can apparently still be found (Manchester et al . ), but Belén and Pajarabobo have completely vanished. We found a single hill with both fossiliferous and non‐fossiliferous carbonate crusts embedded in greyish marls at 4°44.239′S, 81°12.935′W (Fig.…”

Section: The Depositsmentioning

confidence: 98%

See 2 more Smart Citations

Fossiliferous methane‐seep deposits from the Cenozoic Talara Basin in northern Peru

Kiel

Altamirano

Birgel

et al. 2020

LET

View full text Add to dashboard Cite

Thirteen fossiliferous limestone deposits from Cenozoic strata in the Talara Basin in northern Peru are identified as ancient methane‐seep deposits. Planktonic foraminifera and the existing stratigraphical framework of the Talara Basin indicate an early Oligocene, or possibly late Eocene, age of these deposits. They are found in three distinct areas – Belén, Cerro La Salina and Cerros El Pelado – and differ in their petrography, stable isotope signatures, and lipid biomarker and macrofaunal contents. At Belén, the carbon stable isotope signature of the carbonate and the abundance of n‐alkanes indicates the possibility of oil seepage in addition to methane seepage; for Belén and Cerro La Salina the high abundance of the biomarker crocetane indicates a dominance of anaerobic methane‐oxidizing archaea of the ANME‐2 group, whereas the rather small combined crocetane/phytane peak of a Cerros El Pelado limestone agrees with mixed ANME‐1/ANME‐2 input. The macrofauna consists mainly of molluscs; the Cerro La Salina sites include mostly infaunal thyasirid and lucinid bivalves and only few vesicomyid bivalves; gastropods include Provanna antiqua, the limpet Pyropelta and several vetigastropods. The Belén site is dominated by the elongate vesicomyid bivalve Pleurophopsis lithophagoides. The most common bivalve at the Cerros El Pelado sites is an undetermined, possible vesicomyid, and a smooth provannid gastropod. Biogeographically the faunas are most similar to those of the northwestern United States, as indicated by two joint species; similarities on the genus level (Conchocele, Lucinoma, Pleurophopsis, Provanna, Colus) exist also with Japan and the Caribbean region.

show abstract

Section: The Depositsmentioning

confidence: 93%

Section: The Depositsmentioning

confidence: 97%

Section: The Depositsmentioning

confidence: 98%

See 1 more Smart Citation

Fossiliferous methane‐seep deposits from the Cenozoic Talara Basin in northern Peru

Kiel

Altamirano

Birgel

et al. 2020

LET

View full text Add to dashboard Cite

show abstract

“…As for the previous calibration, a log-normal distribution was used, with an off set value of 55.8 and a standard deviation of 1.0. Th e third calibration point is the oldest fossil unequivocally assigned to genus Cissus , from the Belén fl ora (North Coastal Peru) of the Oligocene, with a maximum age of 30-28.5 Ma based on diatom biostratigraphy ( Manchester et al, 2012a ). Th is fossil has features shared with species from morphotype 1 and the Cissus integrifolia clade (see below); it was therefore assigned to the stem node of this group (calibration C) with a log-normal distribution with an off set value of 27.5 and a standard deviation of 1.0.…”

Section: Methodsmentioning

confidence: 99%

“…During that study, three other morphotypes with similarity to seeds of extant Cissus L. species were recognized among the collections originally studied by Chesters (1957Chesters ( , 1958. If these four fossil records of Cissus can be verifi ed, they would constitute the fi rst records of the Vitaceae in the fl ora, the earliest reported record of Vitaceae from the African continent and could provide evidence for arid-or rainforest-adapted taxa in the African Miocene vegetation ( De Santo et al, 1987 ;Verdcourt, 1993 ;Lombardi, 2000 ;Manchester et al, 2012a ).…”

mentioning

confidence: 97%

X-rays and virtual taphonomy resolve the first Cissus (Vitaceae) macrofossils from Africa as early-diverging members of the genus

Adams¹,

Collinson²,

Smith³

et al. 2017

Preprint

View full text Add to dashboard Cite

Premise of the study: Fossilized seeds similar to Cissus (Vitaceae) have been recognized from the Miocene of Kenya, though some were previously assigned to the Menispermaceae. We undertook a comparative survey of extant African Cissus seeds to identify the fossils and consider their implications for the evolution and biogeography of Cissus and for African early Miocene paleoenvironments. Methods: Micro-computed tomography (µCT) and synchrotron-based X-ray tomographic microscopy (SRXTM) were used to study seed morphology and anatomy. Virtual taphonomy, using SRXTM data sets, produced digital fossils to elucidate seed taphonomy. Phylogenetic relationships within Cissus were reconstructed using existing and newly produced DNA sequences for African species. Paleobiology and paleoecology were inferred from African nearest living relatives. Key results: The fossils were assigned to four new Cissus species, related to four modern clades. The fossil plants were interpreted as climbers inhabiting a mosaic of riverine woodland and forest to more open habitats. Virtual taphonomy explained how complex mineral infill processes concealed key seed features, causing the previous taxonomic misidentification. Newly sampled African species, with seeds most similar to the fossils, belong to four clades within core Cissus, two of which are early diverging. Conclusions: Virtual taphonomy, combined with X-ray imaging, has enabled recognition of the first fossil Cissus and Vitaceae from Africa. Early-divergent members of the core Cissus clade were present in Africa by at least the early Miocene, with an African origin suggested for the Cissus sciaphila clade. The fossils provide supporting evidence for mosaic paleoenvironments inhabited by early Miocene hominoids.

show abstract

Synchrotron computer tomographic (CT) scans complement traditional techniques in understanding the internal anatomy of permineralised Fontainocarpa (Crotonoideae, Euphorbiaceae) fruits from the Oligocene of eastern Australia

Rozefelds

Milroy

Dettmann

et al. 2017

Review of Palaeobotany and Palynology

View full text Add to dashboard Cite

The internal morphology and anatomy of silicified fruits of Fontainocarpa were studied using traditional thin sectioning techniques, SEM and synchrotron computed tomographic (CT) imaging and animations, to enable comparative analyses with extant, indehiscent-fruited genera in the Euphorbiaceae including Fontainea, Aleurites and Hylandia from Australia, and other non-Australian crotonoid genera. Thin sections and sectioning show that the fruits of Fontainocarpa are indehiscent, multicarpellate and usually 3-to 5-loculate, with axial placentation, a single ovule per carpel and the ovules

show abstract

Oligocene Age of the Classic Belén Fruit and Seed Assemblage of North Coastal Peru based on Diatom Biostratigraphy

Cited by 16 publications

References 13 publications

Fossiliferous methane‐seep deposits from the Cenozoic Talara Basin in northern Peru

Fossiliferous methane‐seep deposits from the Cenozoic Talara Basin in northern Peru

X-rays and virtual taphonomy resolve the first Cissus (Vitaceae) macrofossils from Africa as early-diverging members of the genus

Synchrotron computer tomographic (CT) scans complement traditional techniques in understanding the internal anatomy of permineralised Fontainocarpa (Crotonoideae, Euphorbiaceae) fruits from the Oligocene of eastern Australia

Contact Info

Product

Resources

About