Charles W. Helm, M. Bateman, A. Carr, H. Cawthra, Jan C. de Vynck, M. Dixon, M. Lockley, W. Stear, J. Venter
{"title":"Pleistocene fossil snake traces on South Africa’s Cape south coast","authors":"Charles W. Helm, M. Bateman, A. Carr, H. Cawthra, Jan C. de Vynck, M. Dixon, M. Lockley, W. Stear, J. Venter","doi":"10.1080/10420940.2023.2250062","DOIUrl":"https://doi.org/10.1080/10420940.2023.2250062","url":null,"abstract":"Abstract Snakes form a large, familiar, and distinctive component of the world’s reptile fauna, with a rich body fossil record stretching back to the Jurassic. The sparse, minimal, and questionable evidence of snake traces in the ichnological record is therefore surprising. Extant snakes in southern Africa employ three types of locomotion—rectilinear, sidewinding, and undulatory, all of which result in distinctive, recognizable traces. A site exhibiting convincing evidence of rectilinear motion, probably made by a puff adder, has been identified in Pleistocene aeolianites on South Africa’s Cape south coast. A new ichnogenus and ichnospecies, Anguinichnus linearis, have been erected to describe this trace. A new suite of optically stimulated luminescence (OSL) ages from aeolianites from the De Kelders Cave locality, 1.4 km to the south, suggests that the site dates to ∼93–83 ka. Trace fossil evidence of sidewinding and undulatory motion is more equivocal and open to alternative interpretations.","PeriodicalId":51057,"journal":{"name":"Ichnos-An International Journal for Plant and Animal Traces","volume":"14 1","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75173502","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}
Long Cheng, Yang Li, W. Foster, Jean‐David Moreau, Chun-bo Yan, H. Yao, Chuanshang Wang, Lide Chen
{"title":"First report of a Late Triassic dinosaur track from the Zigui Basin, Middle Yangtze region, China","authors":"Long Cheng, Yang Li, W. Foster, Jean‐David Moreau, Chun-bo Yan, H. Yao, Chuanshang Wang, Lide Chen","doi":"10.1080/10420940.2023.2250905","DOIUrl":"https://doi.org/10.1080/10420940.2023.2250905","url":null,"abstract":"Abstract Trace fossils offer a great potential to enhance our understanding of the rise of dinosaurs and their interactions with the environment. Here, we report a Rhaetian theropod footprint found in the Shazhenxi Formation of the Zigui Basin, representing the stratigraphically oldest dinosaur track recorded from the Middle Yangtze region and has great significance for understanding the Late Triassic theropods and their distribution across East Asia. The tridactyl track is assigned to cf. Eubrontes isp. and shows a similar morphology with some tracks from the Sichuan Basin, indicating that Eubrontes had a wider spatial distribution in the Upper Triassic than previously thought. This work highlights the great interest and importance of palaeoichnological prospecting in the Triassic deposits of the Zigui Basin.","PeriodicalId":51057,"journal":{"name":"Ichnos-An International Journal for Plant and Animal Traces","volume":"34 1","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83800033","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}
Charles W. Helm, M. Lockley, H. Cawthra, Jan C. de Vynck, M. Dixon, Renée Rust, W. Stear, Monique Van Tonder, B. Zipfel
{"title":"Possible shod-hominin tracks on South Africa’s Cape coast","authors":"Charles W. Helm, M. Lockley, H. Cawthra, Jan C. de Vynck, M. Dixon, Renée Rust, W. Stear, Monique Van Tonder, B. Zipfel","doi":"10.1080/10420940.2023.2249585","DOIUrl":"https://doi.org/10.1080/10420940.2023.2249585","url":null,"abstract":"Abstract When and where did humans first fashion footwear? Ichnology holds the potential to answer this unresolved question in palaeoanthropology. The global record of sites from which shod-hominin tracks have been considered is sparse. Consideration of proxies for footwear use, in conjunction with areas of known Middle Stone Age/Middle Paleolithic hominin tracksites, suggests two suitable regions in which to search for shod-hominin tracks of this age: southern Africa and Western Europe. Inhabitants of these areas in the Middle Stone Age would have had the means, motive and opportunity to fashion footwear. Ichnological evidence from three palaeosurfaces on South Africa’s Cape coast, in conjunction with neoichnological study, suggests that humans may indeed have worn footwear while traversing dune surfaces during the Middle Stone Age. The hominin track record may be biased towards identification of tracks made by barefoot individuals, therefore the development of criteria for the identification of shod-hominin tracks should aid in future interpretation efforts.","PeriodicalId":51057,"journal":{"name":"Ichnos-An International Journal for Plant and Animal Traces","volume":"69 1","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91112531","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}
S. Richiano, D. Moyano-Paz, A. Varela, M. Gingras, D. Poiré
{"title":"Ichnology of tidal ravinement omission surfaces in siliciclastic transgressive deposits from the Puesto El Moro formation (Upper Cretaceous), Southern Patagonia, Argentina","authors":"S. Richiano, D. Moyano-Paz, A. Varela, M. Gingras, D. Poiré","doi":"10.1080/10420940.2023.2244653","DOIUrl":"https://doi.org/10.1080/10420940.2023.2244653","url":null,"abstract":"","PeriodicalId":51057,"journal":{"name":"Ichnos-An International Journal for Plant and Animal Traces","volume":"70 1","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90745637","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}
R. Mikuláš, M. Bubík, T. Elbra, M. Košťák, P. Pruner, P. Schnabl, Kristýna Šifnerová
{"title":"The Jurassic–Cretaceous boundary in the Kurovice section (Southern Moravia, Czech Republic): trace fossils, stable isotopes, and magnetic susceptibility","authors":"R. Mikuláš, M. Bubík, T. Elbra, M. Košťák, P. Pruner, P. Schnabl, Kristýna Šifnerová","doi":"10.1080/10420940.2023.2210741","DOIUrl":"https://doi.org/10.1080/10420940.2023.2210741","url":null,"abstract":"","PeriodicalId":51057,"journal":{"name":"Ichnos-An International Journal for Plant and Animal Traces","volume":"287 1","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77887975","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}
Fernando L. Valencia, O. D. de Araújo, L. Buatois, M. Mángano, Gustavo L. Valencia, R. Lopes, J. Laya
{"title":"Bioturbation changing porosity, permeability, and fracturability in chalk? Insights from an Upper Cretaceous chalk reservoir (Buda Formation, Texas, USA)","authors":"Fernando L. Valencia, O. D. de Araújo, L. Buatois, M. Mángano, Gustavo L. Valencia, R. Lopes, J. Laya","doi":"10.1080/10420940.2023.2212164","DOIUrl":"https://doi.org/10.1080/10420940.2023.2212164","url":null,"abstract":"","PeriodicalId":51057,"journal":{"name":"Ichnos-An International Journal for Plant and Animal Traces","volume":"1 1","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83974125","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}
{"title":"New ichnospecies and redescription of Caedichnus Stafford et al., 2015, traces indicative of durophagous predation","authors":"S. Nicol, L. R. Leighton","doi":"10.1080/10420940.2023.2219824","DOIUrl":"https://doi.org/10.1080/10420940.2023.2219824","url":null,"abstract":"Abstract Predation traces on marine shelled prey are informative and widely utilized indicators of predatory attacks in the scientific literature. Most of these traces remain undescribed and unnamed, making it difficult to identify and quantify predatory behaviour in the fossil record. Two new ichnospecies, Caedichnus cisus and Caedichnus lunaris, have been described and erected into the emended ichnogenus Caedichnus, assigned to the ichnofamily Belichnidae (Wisshak et al., 2019), and a previously proposed synonymy of Caedichnus with Bicrescomanducator is rejected. Both new ichnospecies are indicative of an attack from a durophagous predator and are often associated with repair scars, indicating the attack was unsuccessful, allowing the prey to repair its shell to some degree. The morphology of the prey shell and the method of predator attack are likely to influence both the shape of the resulting trace and whether one results in subsequent repair. Describing predation traces will create consistency between researchers and facilitate the comparison of predation types, predators, and shell morphologies.","PeriodicalId":51057,"journal":{"name":"Ichnos-An International Journal for Plant and Animal Traces","volume":"225 1","pages":"19 - 26"},"PeriodicalIF":0.8,"publicationDate":"2023-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74903680","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}
María I. López Cabrera, M. Mángano, Luis A. Buatois, Eduardo B. Olivero, Christopher G. Maples, Allan A. Ekdale
{"title":"Bromleyia magnifica n. igen., n. isp.: a feeding trace of a protobranch bivalve","authors":"María I. López Cabrera, M. Mángano, Luis A. Buatois, Eduardo B. Olivero, Christopher G. Maples, Allan A. Ekdale","doi":"10.1080/10420940.2023.2222224","DOIUrl":"https://doi.org/10.1080/10420940.2023.2222224","url":null,"abstract":"Abstract The new ichnotaxon Bromleyia magnifica n. igen., n. isp., attributed to the feeding activity of bivalves, is proposed. This ichnotaxon consists of clusters of closely spaced curved ridges that form a fan-shaped structure oppositely distributed on both sides of a longitudinal axis or, more rarely, being present only on one side. Intergradation between Protovirgularia, Lockeia, and Bromleyia forms a compound trace fossil that records the activity of a cleft-foot protobranch bivalve while burrowing, moving through the sediment, and stopping to deposit feed. A specimen from the Carboniferous of Arkansas, previously regarded as Lophoctenium isp., is here included in Bromleyia magnifica. The spreite in Lophoctenium reflects complex behavioural patterns of horizontal strip-mining deposit feeders, including bundles of tubes bending to one side in a pectinate way or arranged on both sides in a highly systematic fashion, which contrasts with the coarse, horizontal fan-shaped, curved bundle of ridges from the Arkansas specimen. The trace fossil Hillichnus lobosensis records the activities of tellinacean deposit feeders and displays feather-like spreite structures reminiscent of Bromleyia. However, the spreite in Hillichnus is more organized, recording repetitive probing through the sediment in horizontal, oblique, and vertical directions of the tubular inhalant siphon. The resulting complex feeding structure, recorded in multiple preservational tiers, displays an alternate arrangement of ridges on either side of an axial basal structure. This configuration differs from the mostly horizontal, less-organized, coarse bundle of ridges with broadly opposite distribution to the sides of an axis present in Bromleyia. Moreover, contrary to Hillichnus, Bromleyia is commonly associated with Lockeia, indicating significant differences in burrowing strategy and mode of construction between these two ichnotaxa.","PeriodicalId":51057,"journal":{"name":"Ichnos-An International Journal for Plant and Animal Traces","volume":"35 1","pages":"11 - 18"},"PeriodicalIF":0.8,"publicationDate":"2023-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75664232","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}
{"title":"The importance of laboratory-based neoichnological experiments for aquatic palaeoecological analyses","authors":"J. Zonneveld, M. Gingras","doi":"10.1080/10420940.2023.2222223","DOIUrl":"https://doi.org/10.1080/10420940.2023.2222223","url":null,"abstract":"Abstract Neoichnological analyses are essential for the accurate assessment and interpretation of ancient, trace-bearing sedimentary successions. Behaviours exemplified by modern organisms are diverse and commonly complex. Direct observation is most easily accomplished in shallow aquatic and subaerially exposed settings, with sustained observation limited primarily to the latter. Laboratory-based neoichnological experimentation fills the void left by the limitations on field based-studies. It also allows for the standardization of behaviour-influencing variables such as substrate parameters, water characteristics and resource availability. By altering these variables, subtle changes in behaviour and trace-making can be observed, enhancing our ability to interpret the rock record.","PeriodicalId":51057,"journal":{"name":"Ichnos-An International Journal for Plant and Animal Traces","volume":"25 1","pages":"1 - 10"},"PeriodicalIF":0.8,"publicationDate":"2023-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89532151","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}
João Paulo da Costa, Lucas Henrique Medeiros da Silva Trifilio, H. I. de Araújo‐Júnior, C. Ximenes
{"title":"Trace fossils on megafaunal bone remains from Quaternary natural tank deposits of Brazil: A case study in João Cativo Paleontological site, Megafauna Valley, Brazil","authors":"João Paulo da Costa, Lucas Henrique Medeiros da Silva Trifilio, H. I. de Araújo‐Júnior, C. Ximenes","doi":"10.1080/10420940.2023.2204232","DOIUrl":"https://doi.org/10.1080/10420940.2023.2204232","url":null,"abstract":"Abstract Northeastern Brazilian natural tank deposits stand out among the sedimentary deposits bearing megafauna remains in South America. João Cativo Paleontological Site (JCPS, Itapipoca, Ceará State, Brazil) is included in the Megafauna Valley and is one of the main sources of paleoecological data in that area. This study reveals trace fossils detected on Quaternary megafauna remains recovered from JCPS, allowing interpretation of paleosynecological interactions among the Quaternary megafauna taxa of the Brazilian Intertropical Region (RIB) and associated taxa. Only four of the 951 fossil specimens (cranial, post-cranial, osteoderms, and teeth) collected in the 1960s had biogenic signatures related to predation/scavenging and pre-historic human handling. Scratches on two rib fragments and a metapodial of Eremotherium laurillardi are attributed to the ichnospecies Machichnus fatimae and suggest a feeding interaction between a canid (probably Protocyon troglodytes) and the carcass of E. laurillardi. The anthropic mark corresponds to incisions made by a lithic weapon in the femur of a Palaeolama major, likely with the intent of slicing and sawing the carcass into smaller pieces.","PeriodicalId":51057,"journal":{"name":"Ichnos-An International Journal for Plant and Animal Traces","volume":"23 1","pages":"39 - 48"},"PeriodicalIF":0.8,"publicationDate":"2023-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82718549","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}