Ichnos-An International Journal for Plant and Animal Traces最新文献_第2页

Dating the Pleistocene hominin ichnosites on South Africa’s Cape south coast 对南非南海岸的更新世古人类遗址进行年代测定

IF 0.8 4区地球科学

Ichnos-An International Journal for Plant and Animal Traces Pub Date : 2023-01-02 DOI: 10.1080/10420940.2023.2204231

Charles W. Helm, A. Carr, M. Lockley, H. Cawthra, Jan C. de Vynck, M. Dixon, W. Stear, Guy H. H. Thesen

{"title":"Dating the Pleistocene hominin ichnosites on South Africa’s Cape south coast","authors":"Charles W. Helm, A. Carr, M. Lockley, H. Cawthra, Jan C. de Vynck, M. Dixon, W. Stear, Guy H. H. Thesen","doi":"10.1080/10420940.2023.2204231","DOIUrl":"https://doi.org/10.1080/10420940.2023.2204231","url":null,"abstract":"Abstract Seven hominin ichnosites in aeolianites on the Cape south coast of South Africa have been dated using Optically Stimulated Luminescence, yielding age estimates from Marine Isotope 6 through Marine Isotope Stage 4. All rock outcrops containing these sites are situated on the modern coastline. The new ages are consistent with geomorphological expectations, and with other numerical dating results from the wider southern Cape coastline. Seen in a global ichnological context, the cluster of South African sites (including two previously dated sites) contains nine of the twenty-three sites older than 70 ka from which hominin tracks have been reported. With a single exception they are also the only sites older than 40 ka that have been attributed to Homo sapiens, and include the oldest tracks (153 ± 10 ka) thus far attributed to our species. The South African coastline contains an archaeological and palaeoanthropological record of global significance, to which the hominin ichnological record, preserved on aeolianite palaeosurfaces and now chronologically constrained, can make a substantial contribution.","PeriodicalId":51057,"journal":{"name":"Ichnos-An International Journal for Plant and Animal Traces","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2023-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86207573","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

The first Mesozoic vertebrate coprolites from Algeria 阿尔及利亚发现第一批中生代脊椎动物粪化石

IF 0.8 4区地球科学

Ichnos-An International Journal for Plant and Animal Traces Pub Date : 2023-01-02 DOI: 10.1080/10420940.2023.2187387

M. Bendella, A. Hunt, M. Benyoucef, Imad Bouchemla

引用次数: 3

On the status of the ichnotaxon Mandaodonites coxii Cruickshank, 1986 Mandaodonites coxii .鱼分类群的现状[j] . Cruickshank, 1986

IF 0.8 4区地球科学

Ichnos-An International Journal for Plant and Animal Traces Pub Date : 2022-10-29 DOI: 10.1080/10420940.2022.2138378

J. Zonneveld

引用次数: 0

Morphology of Radhostium carpaticum Plička and Říha, 1989 in new finds from the Outer Western Carpathians (Upper Cretaceous – Eocene flysch deposits of the Biele Karpaty Mountains, Slovakia) 外西喀尔巴阡山脉新发现Radhostium carpaticum plika和Říha, 1989的形态(斯洛伐克Biele Karpaty山上白垩世-始新世复理石矿床)

IF 0.8 4区地球科学

Ichnos-An International Journal for Plant and Animal Traces Pub Date : 2022-10-02 DOI: 10.1080/10420940.2023.2182301

V. Šimo, B. Zahradníková

{"title":"Morphology of Radhostium carpaticum Plička and Říha, 1989 in new finds from the Outer Western Carpathians (Upper Cretaceous – Eocene flysch deposits of the Biele Karpaty Mountains, Slovakia)","authors":"V. Šimo, B. Zahradníková","doi":"10.1080/10420940.2023.2182301","DOIUrl":"https://doi.org/10.1080/10420940.2023.2182301","url":null,"abstract":"Abstract A new find of one specimen of the relatively rare trace fossil Radhostium carpaticum is the subject of this morphological study. The new find from the Biele Karpaty Unit, is preserved on the soles of turbiditic sandstones within the Upper Cretaceous and Eocene turbiditic sequence of the Svodnice Formation in the Biele Karpaty Mountains, Slovakia. The morphological study of the trace fossil is based on this and the available published individuals of Radhostium. The burrow reveals a regular morphological system consisting of cylindrical U-shaped shafts (elements) arranged in a row linked by a horizontal burrow. Morphology shows that the trace fossil most likely corresponds to an open burrow system of domichnion without back fill. This morphology indicates that it is essentially a branched burrow and does not represent the chevron structure typical for trace fossils of molluscs. However, this morphology is comparable to no known form, so the producer of the trace fossil cannot be reliably determined. Referred ichnospecies of Radhostium have been recorded in three geographic regions (Alps, Carpathians, Apennines). All specimens of R. carpaticum occur in Upper Cretaceous and Palaeocene turbiditic deep-marine sequences. Thus, Radhostium occurs within a relatively narrow stratigraphic range in interconnected palaeogeographic areas in the Western Tethys.","PeriodicalId":51057,"journal":{"name":"Ichnos-An International Journal for Plant and Animal Traces","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2022-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85381672","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Taphonomic overprinting on the late Palaeozoic terrestrial plant–animal interactions: a noise in the record 晚古生代陆生动植物相互作用的语音学叠印:记录中的噪音

IF 0.8 4区地球科学

Ichnos-An International Journal for Plant and Animal Traces Pub Date : 2022-10-02 DOI: 10.1080/10420940.2023.2182297

Abhijit Chakraborty, S. Mandal, Sreepat Jain

{"title":"Taphonomic overprinting on the late Palaeozoic terrestrial plant–animal interactions: a noise in the record","authors":"Abhijit Chakraborty, S. Mandal, Sreepat Jain","doi":"10.1080/10420940.2023.2182297","DOIUrl":"https://doi.org/10.1080/10420940.2023.2182297","url":null,"abstract":"Abstract Plant–animal interactions investigated largely in Glossopteris leaf fossils (1214 specimens) from the lower Permian strata of peninsular India reveal evidence of taphonomic modifications of the ichnofabric. The leaf fossils indicate both above-ground (pre-depositional) and on-ground (post-depositional) animal activities. Animal traces that extend beyond the margins of the leaf compressions or are emplaced on the leaf impressions are evidently post-depositional, preserved ex situ. Both feeding (herbivory/detritivory) and locomotary animal traces are interpreted in the host media. Preserved traces in the leaf fossils depict arrays of pre- and post-depositional events (viz., biotic interactions on green foliage, leaf detachment from the trees, post-mortem transport and burial) along taphonomic pathways. Accordingly, five taphonomic pathways are proposed based on varied combinations of pre- and post-depositional traces, emplaced on leaf fossils. Low diversity and persistent rarity of post-depositional traces (4%) as compared to more common pre-depositional traces (7%) in the sample population are noted. Less common post-depositional trace fossil assemblages of depauperate diversity indicate that stressed habitats prevailed at the depositional sites and a limited time window for preservation of plant–animal interactions. The recognition of pre- and post-depositional trace fossil suites ensures ichnological and ethological fidelity of faunal data on plant–animal interactions.","PeriodicalId":51057,"journal":{"name":"Ichnos-An International Journal for Plant and Animal Traces","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2022-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77924809","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

A gar-bitten vertebrate coprolite from the Neogene of the Atlantic Coastal Plain, USA, and a new ichnospecies of Machichnus Mikuláš et al., 2006 美国大西洋沿岸平原新近纪的一种蛇咬脊椎动物粪化石和一新种Machichnus Mikuláš等，2006

IF 0.8 4区地球科学

Ichnos-An International Journal for Plant and Animal Traces Pub Date : 2022-10-02 DOI: 10.1080/10420940.2023.2182300

Adam Lindholm, S. J. Godfrey, L. Ward, A. Collareta

{"title":"A gar-bitten vertebrate coprolite from the Neogene of the Atlantic Coastal Plain, USA, and a new ichnospecies of Machichnus Mikuláš et al., 2006","authors":"Adam Lindholm, S. J. Godfrey, L. Ward, A. Collareta","doi":"10.1080/10420940.2023.2182300","DOIUrl":"https://doi.org/10.1080/10420940.2023.2182300","url":null,"abstract":"Abstract Vertebrate-bitten coprolites are seemingly rare; nonetheless, within the past dozen years, a handful of these composite trace fossils have been found and described. Here, we describe a single crocodile coprolite from the Lower Miocene Calvert Formation in New Kent County, Virginia, USA, showing bite marks. The size and morphology of the coprolite is consistent with a crocodilian origin. Seven parallel, gently curving gouges, of biogenic origin, disrupt the surface of the coprolite. As it is a medium preserving bite marks, this coprolite qualifies as a morderolite. Furthermore, because of the presence of larger/deeper primary, and finer secondary gouges, which we interpreted as individual tooth marks, the identity of the vertebrate that bit the coprolite is most likely gar (Lepisosteidae). Because other comparable coprolites preserving similar sets of primary and secondary gouges are known, this unique trace fossil is given a new ichnotaxonomic name, Machichnus dimorphodon isp. nov. Many more much smaller markings, interpreted as feeding traces by smaller organisms (possibly invertebrates) also ornament the surface of the coprolite.","PeriodicalId":51057,"journal":{"name":"Ichnos-An International Journal for Plant and Animal Traces","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2022-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87170759","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Teredolites driftwood from the Arkadelphia Formation–Midway Group Contact (K–Pg), Malvern, Arkansas, USA 来自美国阿肯色州马尔文的阿卡德尔菲地层-中途群接触层(K-Pg)的铁纹石浮木

IF 0.8 4区地球科学

Ichnos-An International Journal for Plant and Animal Traces Pub Date : 2022-10-02 DOI: 10.1080/10420940.2023.2182298

Harry M. Maisch, Martin A Becker

{"title":"Teredolites driftwood from the Arkadelphia Formation–Midway Group Contact (K–Pg), Malvern, Arkansas, USA","authors":"Harry M. Maisch, Martin A Becker","doi":"10.1080/10420940.2023.2182298","DOIUrl":"https://doi.org/10.1080/10420940.2023.2182298","url":null,"abstract":"Abstract Partially carbonized driftwood recovered from a lag deposit at the Arkadelphia Formation–Midway Group Contact (K–Pg) near Malvern, Arkansas contains an abundance of macrobioerosion. Macroborings are oriented perpendicular and oblique to the wood grain, straight to sinuous in shape, ≤8 cm long, may have calcitic linings, and belong to Teredolites clavatus (Kelly & Bromley, 1984). The abundance and tightly spaced position of borings on all driftwood surfaces suggests the wood was afloat and/or exposed on or near the seafloor in a shallow marine setting for an extended period of time before becoming buried. Transverse, radial, and tangential thin section analysis of the driftwood identifies distinct growth rings, tracheid and ray cells, ray pits, and resin canals of the bald cypress genus, Taxodium. The presence of Taxodium wood in addition to a diverse and abundant assemblage of transitional to shallow marine vertebrates in the Gulf Coastal Plain of southwestern Arkansas indicate that brackish water swamps were in proximity to the ancestral shoreline around the K–Pg boundary and that these remains were concentrated into a lag deposit as the result of storm events, sea-level cyclicity, and possibly impact generated tsunamis.","PeriodicalId":51057,"journal":{"name":"Ichnos-An International Journal for Plant and Animal Traces","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2022-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86693306","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

The speed and displacement of the Laetoli Site G track-maker hominins 莱托里遗址G足迹制造人族的速度和位移

IF 0.8 4区地球科学

Ichnos-An International Journal for Plant and Animal Traces Pub Date : 2022-10-02 DOI: 10.1080/10420940.2023.2182296

Javier Ruiz, Federico Mansilla, J. Arsuaga, Elena Santos, A. Jiménez‐Díaz, I. Egea-González

{"title":"The speed and displacement of the Laetoli Site G track-maker hominins","authors":"Javier Ruiz, Federico Mansilla, J. Arsuaga, Elena Santos, A. Jiménez‐Díaz, I. Egea-González","doi":"10.1080/10420940.2023.2182296","DOIUrl":"https://doi.org/10.1080/10420940.2023.2182296","url":null,"abstract":"Abstract Since their discovery in 1978, the hominin fossil footprints from Laetoli have been the focus, of extensive research on the locomotion, speed, body size, and behavior of the responsible track-makers (nominally Australopithecus afarensis). In this work, we show that careful examination of walking speed and displacement yields valuable information regarding the interaction between individuals, as well as group behavior of the track-maker hominins. First, we calculate statures for the Site G and S hominins using appropriate footprint length/stature ratios, obtaining statures ranging from 1.2 to 1.6 − 1.7 m. This range is somewhat taller than that proposed for Au. afarensis from skeletal remains (roughly 1.1 to 1.6 m), thus suggesting that comparatively large individuals are possibly represented in the Laetoli footprints. We then calculate speeds for the Site G track-makers from a stride length-speed scaling for humans. Stride and step lengths are measured from a digital model using the deepest point on the heel area of the G1 and G3 footprints as reference, and the deepest point on the hallux area for the overprinted G2 footprints. The hominins responsible for the Site G trackways all walked at a very similar mean speed, around 0.8 m s−1, which is faster than the speeds proposed by some previous studies. Detailed step-to-step speed calculations for G1 and G3 hominins show that the walking speed varied substantially (up to a factor of 1.5) over distances of just a few meters, perhaps due to surface conditions or behavioral reasons. The centers of mass of the G1 and G3 hominins traced very similar trajectories along the trackway portion examined. Thus, all Site G track-makers appear to have been moving together: the G1 and G3 hominins walked over the Laetoli ashes together in parallel, following behind the G2 hominin.","PeriodicalId":51057,"journal":{"name":"Ichnos-An International Journal for Plant and Animal Traces","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2022-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87128674","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

First record of a small stegosaur footprint (cf. Stegopodus) from the ?Upper Jurassic-?Lower Cretaceous red beds of the Middle Atlas, Morocco 第一个小剑龙脚印(参见Stegopodus)的记录来自上侏罗纪-?摩洛哥中阿特拉斯的下白垩纪红层

IF 0.8 4区地球科学

Ichnos-An International Journal for Plant and Animal Traces Pub Date : 2022-10-02 DOI: 10.1080/10420940.2023.2182299

Mostafa Oukassou, Omar Zafaty, G. Gierliński, H. Klein, H. Saber, Mustapha Amzil, A. Charrière

引用次数: 0

Invertebrate trace fossils from Paleogene fluvial strata in Western Washington, USA 美国华盛顿西部古近系河流地层中发现的无脊椎动物化石

IF 0.8 4区地球科学

Ichnos-An International Journal for Plant and Animal Traces Pub Date : 2022-10-02 DOI: 10.1080/10420940.2023.2182295

G. Mustoe

{"title":"Invertebrate trace fossils from Paleogene fluvial strata in Western Washington, USA","authors":"G. Mustoe","doi":"10.1080/10420940.2023.2182295","DOIUrl":"https://doi.org/10.1080/10420940.2023.2182295","url":null,"abstract":"Abstract Fluvial strata in the Paleogene Chuckanut Formation contain a wealth of trace fossils that include both vertebrate and invertebrate ichnofossils. Vertebrate traces have received careful scrutiny, but invertebrate traces have not previously been described. Trace fossils occur in two sediment types. Mudstones deposited in subaqueous environments include highly bioturbated layers that are dominated by horizontal meniscate burrows. Siltstone and fine-grained sandstone beds primarily contain vermiform trails on bedding surfaces, with sparse vertical traces. Some of these sandy beds also contain vertebrate tracks. Chuckanut Formation beds commonly show rapid facies changes in sediments that were deposited along a meandering river during a time of semitropical climate. Transitions from subaqueous to subaerial conditions may have been related to changing water levels caused by variations in seasonal precipitation or episodic flood events. Other possible factors include ponds created by abandonment of channels, overbank sediment s deposited by floods, and breaching of levees to form crevasse splay deposits. Trace fossil assemblages show local variations in the diverse depositional environments of the Chuckanut Formation. Many of the ichnofossil suites clearly represent Scoyenia Ichnofacies, but some occurrences may involve overprinting of Scoyenia and Mermia ichnofacies.","PeriodicalId":51057,"journal":{"name":"Ichnos-An International Journal for Plant and Animal Traces","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2022-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81627188","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1