New evidence for the early Middle Pleistocene flora of the Moscow region (European Russia) from paleocarpological and pollen assemblages

Zyuganova, I. S.; Новенко, Е. Ю.; Makkaveyev, A. N.

doi:10.1127/palb/293/2015/173

Cited by 2 publications

(2 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Carpological assemblages attributed to the transitional period between the Likhvin interglaciation and the subsequent glaciation are known in a number of sections of the East European Plain [25,51,52]. The LCA of the section near the village of Bulatovo, located near the Bolshaya Kosha section in the Selizharovsky district of the Tver region [51,53], is most similar in composition to the LCA of the IP-2015 section. According to palynological data, the Bulatovo section contains sediments of the climatic optimum of the Likhvin interglaciation, its post-optimum phase, subsequent cooling, and relative warming, which is considered to be an interstadial [51].…”

Section: Comparison Of Middle Pleistocene Interstadial Lcas Of the Ea...mentioning

confidence: 99%

“…In the interglacial sediments of the Bulatovo section, in addition to extinct C. goretskyi and C. interglacialis, seeds of the extinct species Aracites interglacialis, exclusively characteristic of the flora of the Likhvin Interglacial and its analogues, were identified [25,32]. The remains of extinct species of P. sarjanensis and C. goretskyi [51,53] have been identified in the interstadial LCA of the Bulatovo section, which were also found in the sediments of the Bolshaya Kosha section. It should be noted that in both sections, the seeds of C. goretskyi were found in both interglacial and "interstadial" sediments, whereas previously, seeds of C. goretskyi were known mainly in the LCA of the Likhvin Interglacial and its analogues, as well as in some older assemblages of the Lower Neopleistocene [25,32,54].…”

Section: Comparison Of Middle Pleistocene Interstadial Lcas Of the Ea...mentioning

confidence: 99%

See 1 more Smart Citation

Palaeoenvironmental Conditions of the Upper Middle Pleistocene Warm Intervals in the Upper Volga Region, Northwestern Russia, Based on Palynological, Paleocarpological and Quantitative Geochronological Data

Panin,

Konstantinov,

Borisova

et al. 2024

Quaternary

View full text Add to dashboard Cite

The climatostratigraphic scale of the Upper Middle Pleistocene in the northwest of the East European Plain contains a number of controversial issues, one of which is the position of the Likhvin (Holstein) Interglacial and lesser warm (interstadial) climatic events. To approach this problem, we have studied two sections of Quaternary deposits, Bolshaya Kosha (a well-known and long-studied natural exposure) and Nazarovo (a new, previously unknown section studied in a borehole), in which warm intervals of the Middle Pleistocene are recognized. In both sections, we performed lithological and paleobiological (carpological, spore-pollen) analyses and luminescence dating. In the Bolshaya Kosha section, seeds of the extinct species Caulinia goretskyi were revealed, which allowed us to attribute the obtained IRSL (ca 250–260 ka) dates to the post-Likhvin Bolshaya Kosha interstadial. The sum of data let us propose that both our IRSL and recently published 230Th/U dates (ca 240–290 ka) underestimate the age by 10–15%, and the post-Likhvin Kosha interstadial deposits were formed in the late MIS 9. In the Nazarovo section, palynological study showed the conditions of a relatively warm interstadial, with a change in the composition of vegetation from northern to middle taiga forests. According to IRSL dating, the section was formed in the MIS 10 late glacial between 330–370 ka. The two studied interstadials bracket the Likhvin (Holstein) Interglacial and sedimentary units in the Bolshaya Kosha section are proposed to have formed in MIS 9e.

show abstract

Section: Comparison Of Middle Pleistocene Interstadial Lcas Of the Ea...mentioning

confidence: 99%

Section: Comparison Of Middle Pleistocene Interstadial Lcas Of the Ea...mentioning

confidence: 99%

Palaeoenvironmental Conditions of the Upper Middle Pleistocene Warm Intervals in the Upper Volga Region, Northwestern Russia, Based on Palynological, Paleocarpological and Quantitative Geochronological Data

Panin,

Konstantinov,

Borisova

et al. 2024

Quaternary

View full text Add to dashboard Cite

show abstract

Macro- and micromorphology of Carex pauciflora-type fossils (Cyperaceae) from Europe and Siberia reveals unexpected affinity to Carex sect. Cyperoideae

Martinetto,

Jiménez-Mejías,

Hakobyan

et al. 2024

Plant Syst Evol

View full text Add to dashboard Cite

Elongated biconvex Carex fossil fruits are relatively common in fossil assemblages, but they are of much uncertain taxonomic affinity. Three fossil-species have been erected to accommodate the materials from the respective type localities (C. klarae, C. paucifloriformis and C. paucifloroides) and a number of superficially similar-looking fossils were reported from other sites. The formerly proposed affinities mostly pointed to the extant C. pauciflora (subgen. Euthyceras) or Carex sect. Cyperoideae (subgen. Vignea), depending on the authors. But despite the similar superficial resemblance of the fossil remains to these not very closely related sedge taxa, other groups are also possible matches. We used a comparative approach employing stereomicroscope and SEM to analyze the affinities of several Old World “mummified” fossils (ca. 23 to 0.1 Ma) of elongated biconvex fruits. Several samples showed a fair preservation of previously unattested microscopic characters. In particular, one of them allowed us to detect an indirect record of fine silica body morphologies (impressions) on the periclinal walls, which permitted the sound taxonomic placement of the remains from the Miocene of Siberia as a Carex sect. Cyperoideae. In all the other fossils analyzed, the epidermal cell outline and the central position of the main silica body were sufficient to discard assignment to subgen. Euthyceras, despite a purported affinity to C. pauciflora reported in previous literature. In the absence of detailed information on silica bodies, epidermal cell (exocarp) details in fossil specimens do not seem to be determinant for the systematic placement. However, the addition of diagnostic style characters pointed to sect. Cyperoideae as the best match with the available information. Our data support a continued presence of Carex sect. Cyperoideae in the Old World since the Miocene, which candidates Eurasia as a possible place of origin for it, despite DNA-based reconstructions alone proposed North America. This study underlines the importance of detailed taxonomic studies to properly address the identity of fossils and unravel the biogeographic history of plants.

show abstract

New evidence for the early Middle Pleistocene flora of the Moscow region (European Russia) from paleocarpological and pollen assemblages

Cited by 2 publications

References 0 publications

Palaeoenvironmental Conditions of the Upper Middle Pleistocene Warm Intervals in the Upper Volga Region, Northwestern Russia, Based on Palynological, Paleocarpological and Quantitative Geochronological Data

Palaeoenvironmental Conditions of the Upper Middle Pleistocene Warm Intervals in the Upper Volga Region, Northwestern Russia, Based on Palynological, Paleocarpological and Quantitative Geochronological Data

Macro- and micromorphology of Carex pauciflora-type fossils (Cyperaceae) from Europe and Siberia reveals unexpected affinity to Carex sect. Cyperoideae

Contact Info

Product

Resources

About