Fossil Imprint最新文献_第5页

The ultrastructure of the tooth enamel of small Equus of the “tarpan” group and their possible phylogenetic connections “tarpan”类群小马牙釉质的超微结构及其可能的系统发育联系

Fossil Imprint Pub Date : 2021-01-01 DOI: 10.37520/fi.2021.007

Vitalii Demeshkant, L. Rekovets

{"title":"The ultrastructure of the tooth enamel of small Equus of the “tarpan” group and their possible phylogenetic connections","authors":"Vitalii Demeshkant, L. Rekovets","doi":"10.37520/fi.2021.007","DOIUrl":"https://doi.org/10.37520/fi.2021.007","url":null,"abstract":"The paper presents the results of a comparative analysis of the ultrastructure of tooth enamel (incisors, premolars and molars) in representatives of morphologically (and possibly phylogenetically) similar forms of small horses. These are both extinct forms of tarpan – Equus gmelini from various sites of the early Holocene of Ukraine (Myrne, Kamiana Mohyla and Hirzhevo) and modern forms – konik polski and E. przewalskii, and European wild ass – E. hydruntinus. Morphology of prisms in different layers of tooth enamel and its relative relationships in various taxa were thoroughly described. The data obtained in the form of tables and graphs, with the appropriate statistical processing thereof, show the morphological similarity of tarpan remains from different sites, and their similarity to the konik polski and Przewalski’s horse. However, the European wild ass differs significantly from the other groups studied. In equines, the radial enamel varieties (types І, ІІ and ІІІ) have evolutionary tendencies to strengthen the first and second types of hydroxyapatite prisms, while reducing the share of the IPM matrix in the enamel structure. In turn, the enamel of the incisors is characterized by lamellar enamel of the HSB uniserial type.","PeriodicalId":12431,"journal":{"name":"Fossil Imprint","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69921055","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Why Lycospora dominated many Pennsylvanian spore assemblages 为什么Lycospora在许多宾夕法尼亚孢子组合中占优势

Fossil Imprint Pub Date : 2021-01-01 DOI: 10.37520/fi.2021.002

B. Thomas

引用次数: 0

Early complex tiering pattern: Upper Ordovician, Barrandian area, the Czech Republic 早期复杂层序模式:捷克共和国Barrandian地区上奥陶统

Fossil Imprint Pub Date : 2021-01-01 DOI: 10.37520/fi.2021.003

Pavel Bokr, R. Mikuláš, P. Budil, P. Kraft

引用次数: 0

First record of intact equisetalean strobili from the Wealden (Lower Cretaceous) of the Isle of Wight, southern England 来自英格兰南部怀特岛威尔登(下白垩纪)的第一个完整的equisetalean strobili记录

Fossil Imprint Pub Date : 2021-01-01 DOI: 10.37520/fi.2021.005

C. Pott

{"title":"First record of intact equisetalean strobili from the Wealden (Lower Cretaceous) of the Isle of Wight, southern England","authors":"C. Pott","doi":"10.37520/fi.2021.005","DOIUrl":"https://doi.org/10.37520/fi.2021.005","url":null,"abstract":"Two excellently preserved small strobili were obtained from a Wealden plant debris bed in the Lower Cretaceous (Barremian) Wessex Formation, south-east of Chilton Chine, on the Isle of Wight, southern England. The strobili are preserved as compressions and show the characteristic morphology of sporangiophore heads of Equisetales. Based on the morphology of the strobili, attribution to a certain species is not warranted. Therefore, the strobili have been left unassigned in the fossil-genus Equisetostachys which is commonly used for isolated strobili of fossil sphenophytes. From their size, shape and constitution, the strobili are interpreted as immature; the absence of preserved sporangia and spores is consequently not unexpected. Affiliation with Equisetum burchardtii might be an option. The strobili represent the first record of any equisetalean or sphenophyte remains from the Wessex Sub-basin of the English Wealden and are thus of considerable importance. The find is especially significant because previously known specimens from the Weald Sub-basin and the German Wealden are confined to subterranean rhizomes, adventitious roots, tubers and bases of aerial shoots, commonly preserved in situ, together with only fragmentary remains of sporangiophore heads from disarticulated strobili. These strobili finds are thus the first intact equisetalean reproductive structures from the Wealden of either England or Germany.","PeriodicalId":12431,"journal":{"name":"Fossil Imprint","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69921002","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

New leaf species from the upper Miocene flora of the leaf-bearing Wischgrund clay (Lower Lusatia, Brandenburg, Germany) 德国勃兰登堡下卢萨蒂亚地区Wischgrund粘土中新世上部植物区系的新叶种

Fossil Imprint Pub Date : 2021-01-01 DOI: 10.37520/fi.2021.009

U. Striegler

引用次数: 0

New suoid fossils (Mammalia, Artiodactyla) from the Miocene of Moghara, Egypt, and Gebel Zelten, Libya: biochronological implications 埃及Moghara和利比亚Gebel Zelten中新世新类人猿化石(哺乳类，偶蹄类):生物年代意义

Fossil Imprint Pub Date : 2021-01-01 DOI: 10.37520/fi.2021.010

M. Pickford, M. A. Abdel Gawad, M. Hamdan, A. El-Barkooky, Mohammed H. Al Riaydh

{"title":"New suoid fossils (Mammalia, Artiodactyla) from the Miocene of Moghara, Egypt, and Gebel Zelten, Libya: biochronological implications","authors":"M. Pickford, M. A. Abdel Gawad, M. Hamdan, A. El-Barkooky, Mohammed H. Al Riaydh","doi":"10.37520/fi.2021.010","DOIUrl":"https://doi.org/10.37520/fi.2021.010","url":null,"abstract":"Some undescribed suoid specimens from early and middle Miocene deposits at Moghara, Egypt, and Gebel Zelten, Libya, are of interest for biochronology. The fossils comprise maxillae and mandibles with incomplete dentitions, which are described and illustrated in detail. Three species of suids and one sanithere occur at Moghara. A huge edentulous suid mandible was collected at Gebel Zelten in 1997 during the Spanish-Libyan Palaeontology Expedition. In January, 2020, additional sanithere fossils were collected from Moghara by a team from Cairo University and the Muséum National d’Histoire Naturelle, Paris. A suid mandible with four teeth collected from Moghara in 1994, and now curated at the Cairo Geological Museum, confirms the presence of the species Libycochoerus massai at the site, previously represented by an isolated upper molar and two canines. A talus previously thought to be from Moghara is now known to have been collected at Wadi Natrun (late Miocene) and thus probably represents a tetraconodont rather than a kubanochoere. The age of the Moghara deposits is estimated to span the period ca. 19.5–16.5 Ma (late early Miocene, Faunal Sets PII–PIIIa) and the Zelten sequence is most likely to span the period ca. 17–14.5 Ma (late early Miocene to basal middle Miocene, Faunal Sets PIIIa–PIIIb).","PeriodicalId":12431,"journal":{"name":"Fossil Imprint","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69921237","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Amphicyoninae (Amphicyonidae, Carnivora, Mammalia) of the early Miocene from Tuchořice, the Czech Republic 捷克共和国Tuchořice中新世早期两栖动物科(两栖动物科，食肉目，哺乳纲)

Fossil Imprint Pub Date : 2021-01-01 DOI: 10.37520/fi.2021.011

J. Morales, O. Fejfar, E. Heizmann, J. Wagner, A. Valenciano, Juan Abella

引用次数: 3

New actinopterygians from the Permian of the Brive Basin, and the ichthyofaunas of the French Massif Central 布里夫盆地二叠纪的新放光翼目动物和法国中部地块的鱼系动物

Fossil Imprint Pub Date : 2021-01-01 DOI: 10.37520/fi.2021.012

S. Štamberg, J. Steyer

{"title":"New actinopterygians from the Permian of the Brive Basin, and the ichthyofaunas of the French Massif Central","authors":"S. Štamberg, J. Steyer","doi":"10.37520/fi.2021.012","DOIUrl":"https://doi.org/10.37520/fi.2021.012","url":null,"abstract":"A new actinopterygian fauna from the Permian of the Brive Basin (Corrèze, Massif Central, France) is described in detail. It is represented by a new pygopterid taxon, Briveichthys chantepieorum gen. et sp. nov., erected and described here on the basis of several well-preserved specimens showing peculiar characters in the bones of the skull roof, parasphenoid, bones of the cheek and opercular apparatus. Other specimens from this new fauna are also described; they are referred to Progyrolepis heyleri Poplin, 1999, also known in the Bourbon-l’Archambault Basin, and Aeduella cf. blainvillei, which is relatively common in the Permian of France. These discoveries show the importance of the Brive Basin which was previously considered as a rather barren basin in term of palaeontology. This new fauna from Brive is compared with the other Permian ichthyofaunas from France: it is less rich in terms of specimen numbers than the faunas of Bourbon-l’Archambault and Autun, but it is more diversified in terms of number of taxa than the faunas of Lodève and L’Argentière (Ardêche). These actinopterygians, together with other aquatic vertebrates (e.g., acanthodians, sharks etc.), were widespread and diversified in the Hercynian Mountain Chain during the Permian. They indicate that the French basins were connected in time and space. The wide distribution of these aquatic taxa may have been favoured by numerous hydric systems (lakes, rivers etc.) which were well developed under the tropical climate.","PeriodicalId":12431,"journal":{"name":"Fossil Imprint","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69920942","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

The occurrence of pollen of Sciadopityaceae Luerss. through time 山菖蒲科植物花粉的发生。经过漫长的时间

Fossil Imprint Pub Date : 2021-01-01 DOI: 10.37520/fi.2021.019

C. Hofmann, N. Odgerel, L. Seyfullah

引用次数: 1

Stratigraphy, chronology and palaeontology of the Tertiary rocks of the Cheringoma Plateau, Mozambique 莫桑比克切林戈马高原第三纪岩石的地层学、年代学和古生物学

Fossil Imprint Pub Date : 2021-01-01 DOI: 10.37520/fi.2021.014

M. Bamford, M. Pickford

{"title":"Stratigraphy, chronology and palaeontology of the Tertiary rocks of the Cheringoma Plateau, Mozambique","authors":"M. Bamford, M. Pickford","doi":"10.37520/fi.2021.014","DOIUrl":"https://doi.org/10.37520/fi.2021.014","url":null,"abstract":"The discovery of fossil plants, marine molluscs and mammals in the Mazamba Formation, Cheringoma Plateau, Mozambique, opens a new chapter in the study of this part of the African Rift System. The evidence suggests that the Mazamba Formation is older than previously reported, probably late Eocene rather than Miocene. The fossil wood and stems indicate a frost-free tropical humid environment and a high water table soon after deposition, and the marine molluscs and mammals indicate proximity to the sea. There is also evidence for the occurrence of pans in the area during the late Eocene which also suggest a near-surface water table. This paper discusses the history of interpretation of the geology of the Cheringoma Plateau and describes and interprets the fossil plants, molluscs and mammals collected in 2012 and 2013. It is concluded that the Mazamba Formation, which overlies the fully marine Lutetian-Bartonian Cheringoma Limestone, is a coastal facies (fluvio-deltaic, lagoonal and onshore deposits) that accumulated on top of the marine limestones as sea level dropped late in the Bartonian. Mammalian bones from the White Patch sites represent a heavily built species about the dimensions of a pygmy hippopotamus, probably belonging to the order Embrithopoda. If so, then the Mazamba Formation is likely to correlate to the latest Bartonian or early Priabonian rather than to the Miocene as previously assumed.","PeriodicalId":12431,"journal":{"name":"Fossil Imprint","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69921029","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0