Terrestrial Climate Evolution in Northwest Germany over the Last 25 Million Years

Utescher, Torsten; Mosbrugger, Volker; Ashraf, Abdul R.

doi:10.2307/3515514

Cited by 75 publications

(113 citation statements)

References 25 publications

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“…The warm month mean shows the most significant variations in terms of palaeotemperature which is contrary to that found in studies utilising the CA on Tertiary floras from the mid-latitudes (e.g. Utescher et al, 2000). Moreover the maximum estimated temperatures do not surpass 27 8C.…”

Section: Coexistence Approachcontrasting

confidence: 52%

“…With a mean interval width of 4.0 8C for MAT the climatic resolution is considerably lower when compared with ranges of ca. 1.5 8C obtained from the analyses Neogene floras (Utescher et al, 2000). As expected, only rarely did all NLRs of the fossil taxa coexist within the resulting ranges (see above).…”

Section: Coexistence Approachmentioning

confidence: 81%

“…Theoretically, 100% of the NLRs of a fossil flora should coexist. In practice, percentages range between 85% and 100% for Tertiary floras (Utescher et al, 2000) because of the number of potential biasing factors. Important sources of error include: the taphonomic conditions of the fossil flora; the misidentification of NLRs; the fact that certain NLRs, such as monotypic genera or relicts occurring in isolated areas may not represent the entire climatic spectrum of their ancestors; and the proposed underestimation of CMMT (by 1.5-3 8C for the taxa studied) when derived from the NLR approach in periods where atmospheric CO 2 levels were higher than today (Royer et al, 2002).…”

Section: Coexistence Approachmentioning

confidence: 99%

“…This recent variation of the NLR approach has been applied to various Tertiary leaf floras (e.g. Pross et al, 1998;Utescher et al, 2000;Uhl et al, 2003;Liang et al, 2003). A number of techniques have also been devised whereby quantitative palaeoclimatic data can be derived from fossil plant material without relying so much on the taxonomic identity of the fossil under study.…”

Section: Introductionmentioning

confidence: 99%

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A multi-proxy approach to determine Antarctic terrestrial palaeoclimate during the Late Cretaceous and Early Tertiary

Poole

Cantrill

Utescher

2005

Palaeogeography, Palaeoclimatology, Palaeoecology

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100

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Fossil wood is abundant throughout the Cretaceous and Tertiary sequences of the northern Antarctic Peninsula region. The fossil wood represents the remains of the vegetation that once grew at the southern high palaeolatitudes at 59-628S through the general decline in climate, from the Late Cretaceous global warmth through to the mid-Eocene cool period prior to the onset of glaciation. This study draws on the largest dataset ever compiled of Antarctic conifer and angiosperm woods in order to derive clearer insights into the palaeoclimate. Parameters including mean annual temperature, mean annual range in temperature, cold month mean, warm month mean, mean annual precipitation are recorded. The fossil wood assemblages have been analysed using anatomical (physiognomic) characteristics to determine the palaeoclimate variables from the Coniacian-Campanian to the middle Eocene. These results are compared with data derived from Coexistence Analysis of the fossil floras (composed of leaves, wood and palynomorphs) and published data based on leaf physiognomic characters. These studies indicate a relatively warm and wet Late Cretaceous that becomes drier and cooler in the Early Paleocene and subsequently returns to warmer, wetter conditions by the latest Early Paleocene. During the Eocene the climate becomes relatively cool and dry once again. The discrepancies obtained from these two methods coupled with other published data are discussed in the context of the fluctuations in the temperatures of the surrounding oceans and global patterns of climate change. D

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Section: Coexistence Approachcontrasting

confidence: 52%

Section: Coexistence Approachmentioning

confidence: 81%

Section: Coexistence Approachmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A multi-proxy approach to determine Antarctic terrestrial palaeoclimate during the Late Cretaceous and Early Tertiary

Poole

Cantrill

Utescher

2005

Palaeogeography, Palaeoclimatology, Palaeoecology

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100

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“…This range of mean an nual tem per a ture ac cord ing to the chart by Utescher et al (2009: fig. 3 and sup ple men tary on line ma te ri als 3) cor responds to Cfa-Cwa cli mate types ex ist ing in Cen tral Eu rope through out most of the time-span from the Late Eocene to Mid dle Mio cene, and dur ing a short-term phase in the later Tortonian in the Lower Rhine Ba sin (Utescher et al, 2000). Pol len flora described from the mid dle Eocene is char ac ter is tic of the Cfa-Cwa cli mate (Grímsson et al, 2016).…”

Section: Discussionmentioning

confidence: 97%

Pollen morphotype edmundi and its significance for palaeoclimate reconstructions of the Neogene

Słodkowska

Ziembinska-Tworzydlo

2017

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2 Uni ver sity of War saw, Fac ulty of Ge ol ogy, ¯wirki i Wigury 93, 02-089 Warszawa, Po land S³odkowska, B., Ziembiñska-Tworzyd³o, M., 2017. Pol len morphotype edmundi and its sig nif i cance for palaeoclimate re construc tions of the Neo gene. Geo log i cal Quar terly, 61 (2): 267-275, doi: 10.7306/gq.1344Pol len anal y sis has re vealed the pres ence of the edmundi morphotype in the Paleogene and Neo gene sed i ments of Cen tral Eu rope. Its spe cies, char ac ter ized by dif fer ent morphologies, are mainly as signed to two fam i lies of ex tant plants -the Araliaceae and the Mastixiaceae -and com pared to pol len of some gen era (Diplopanax and Mastixia from the Mastixiaceae, and Aralia, Fatsia and Schefflera from the Araliaceae). The most sig nif i cant ge nus for palaeoclimate re con struc tions is the ex tant Diplopanax, whose seeds, sim i larly as the seeds of other rep re sen ta tives of the Mastixiaceae, ap pear in the warm phases of the Neo gene. The type spe cies of Edmundipollis (E. edmundi) has been com pared to Diplopanax pol len. Based on sim i lar i ties with ex tant plants, the CA (Co ex is tence Ap proach) was de ter mined. The re sults in di cate a very warm and hu mid sub trop i cal cli mate (Cfa-Cwa) ac cord ing to the Köppen clas si fi ca tion.

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Influence of Plio‐Pleistocene aridification on human evolution: Evidence from paleosols of the Turkana Basin, Kenya

Wynn

2003

American J Phys Anthropol

192

102

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New stable carbon isotope measurements, coupled with paleoprecipitation estimates, both from Plio-Pleistocene paleosols of the Turkana Basin, Kenya, provide a high-resolution record of aridification and increasing C4 biomass during the past 4.3 Ma. This aridification trend is marked by several punctuations at 3.58-3.35, 2.52-2, and 1.81-1.58 Ma, during which the running mean and variance of delta13C and paleoaridity estimates increase, suggesting that the proportion of C4 biomass increases in savanna mosaics during periods of heightened aridity. Increase in C4 biomass during these aridification events not only increases the proportion of open habitats, but increases the spatial neg-entropy, or heterogeneity of the ecosystem. The aridification events identified correspond to intervals of increased turnover, but more importantly, increased diversity of bovids. Although the record of hominins from the Turkana Basin lacks the temporal resolution and diversity of the bovid record, the aridification intervals identified are marked by similar increases in the diversity and turnover of hominins. These results support the hypothesis that hominins evolved in savanna mosaics that changed through time, and suggest that the evolution of bovids and hominins was driven by shifts in climatic instability and habitat variability, both diachronic and synchronic.

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Terrestrial Climate Evolution in Northwest Germany over the Last 25 Million Years

Cited by 75 publications

References 25 publications

A multi-proxy approach to determine Antarctic terrestrial palaeoclimate during the Late Cretaceous and Early Tertiary

A multi-proxy approach to determine Antarctic terrestrial palaeoclimate during the Late Cretaceous and Early Tertiary

Pollen morphotype edmundi and its significance for palaeoclimate reconstructions of the Neogene

Influence of Plio‐Pleistocene aridification on human evolution: Evidence from paleosols of the Turkana Basin, Kenya

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