ABSTRACT The vast majority of fossil remains in Late Pleistocene deposits from Niedźwiedzia Cave ... more ABSTRACT The vast majority of fossil remains in Late Pleistocene deposits from Niedźwiedzia Cave in Kletno, Sudetes, Poland, belong to the cave bear. Phylogenetic analyses based on a fragment of the mitochondrial D-loop region extracted from two cave bear samples unambiguously showed their close relationship with the Ursus ingressus hap-logroup. This taxonomic affiliation of the cave bear remains from Niedźwiedzia Cave was further confirmed by biometrical analyses of molar teeth and skulls. Our results represent the first record of U. ingressus north of the Carpathian Arch, while radiocar-bon dating (> 49,000 yr BP) of the samples indicates that they represent some of the oldest specimens of this cave bear taxon known so far. Multi-method phylogenetic analyses including numerous publicly available cave bear sequences allowed analys-ing the relationships among these samples in details, including the significance of par-ticular clades, and discussing some aspects of cave bear phylogeography. The sequences of U. ingressus from Poland are most closely related to specimens from the Ural Mountains and next to Slovenia, which may indicate migrations between Central and Eastern European populations. The internal placement of Ural samples among European specimens in phylogenetic trees and the older age of Polish samples than those from Urals suggest that the eastward expansion of U. ingressus may have started from Central Europe.
The pre-Quaternary fossil record of Canis in the Old World is scarce, and the first appearance of... more The pre-Quaternary fossil record of Canis in the Old World is scarce, and the first appearance of this genus in Europe remains an enigma. Amongst the oldest fossils assigned to this genus, there is a natural cast of the brain (endocast) collected in Węże 1, Poland, from Pliocene deposits dated between 3.3 and 4.0 Ma. We reexamined this specimen and found that it differs from the brain of Canis in having its region medial to the coronal sulcus heart-shaped in dorsal view, its region rostral to the presylvian sulcus shorter and less constricted laterally, and its cerebellum less overlapped by the cerebrum and lacking a lateral twist of the posterior vermis.We identified this fossil, as well as another fossil canid endocast from Węże 1, as representing the raccoon dog genus Nyctereutes. The previously reported presence of Canis in Węże 1 is therefore not confirmed. Specifically, both endocasts can be referred to N. donnezani because this is the only species of Nyctereutes that has been recognised in this locality on the basis of craniomandibular and dental fossils. Our study represents a taxonomic application of comparative neuroanatomical and palaeoneurological data, an approach that may become increasingly useful with the growing knowledge of the endocranial morphology of fossil mammals.
Acta Zoologica Cracoviensia - Series A: Vertebrata, 2011
ABSTRACT A right fragment of the maxilla of Gulo gulo was found in the Late Pleistocene locality ... more ABSTRACT A right fragment of the maxilla of Gulo gulo was found in the Late Pleistocene locality of Kaniv in central Ukraine. The specimen is assigned to the Late Pleistocene form because of its large size and morphological characters of teeth. Fossil remains of Gulo gulo are known from 10 localities in Ukraine, but most of them are not well dated. Palaeontological and historical records of wolverine from Ukraine are discussed.
ABSTRACT The deposits of Biśnik Cave yielded numerous bear remains from sediments dated to the MI... more ABSTRACT The deposits of Biśnik Cave yielded numerous bear remains from sediments dated to the MIS 8–MIS 3 interval. This situation allowed examination of the paleoecology of Ursus spelaeus over time, compared with two other species of bears: Ursus deningeri and Ursus arctos, also present in fossil material from Biśnik Cave. The stable isotope ratios (δ13C, δ18O) in tooth enamel were applied in combination with examination of seasonal deposition of dental cementum. The δ13C values showed the diet of each bear species stayed in the range of C3 plants. Results for U. spelaeus showed a wider range of δ13C values than for U. deningeri or U. arctos. The values are relatively negative in comparison to fossil bears from other European sites. Low δ13C values observed in bears from Biśnik Cave could be linked to a canopy effect and document a forested environment for these bears. No correlation between δ18O and δ13C values was noted. The cementum analysis revealed that season of death of all species was winter and all studied specimens died during hibernation. The highest mortality concerned mostly individuals below 4 years old and the highest individual aged was U. deningeri.
ABSTRACT In this paper, the evolution of wolves and deer is presented as expressed in changes in ... more ABSTRACT In this paper, the evolution of wolves and deer is presented as expressed in changes in size and proportions in molars, metapodials and phalanges, which are well represented in the fossil record. This has two advantages: firstly, samples are often large, and secondly this is a taxon-free approach, focussing on the data, rather than presenting the lineages in the form of sequences of names of chrono species or subspecies. This allows more precise documentation of the changes. Occasionally rapid evolutionary changes are found, which mark a time slice and which have biochronologic value. Several canid and deer lineages were studied previously in this way, while others are presented for the first time here, and Polish material is incorporated in all. In some cases, the Polish material helps to improve the timing of the evolutionary events, while in others, the existing information is used to confirm or improve the dating of Polish localities.
ABSTRACT This study analyzed size changes in the course of the time among European Middle and Lat... more ABSTRACT This study analyzed size changes in the course of the time among European Middle and Late Pleistocene lions. The general decreasing size as a tendency in cave lion evolution is confirmed. The whole time span of lion presence in Europe was divided into four main periods. The first period covers Middle and late Middle Pleistocene (MIS 19-17 to MIS 7-6) and is characterized by the presence of very large individuals with somewhat primitive morphology. It might be cautiously said that lions in that time were comparatively large throughout the Middle and late Middle Pleistocene. The second period included the last part of the late Middle and the beginning of the Late Pleistocene (MIS 6-5). This period is documented by a mixed presence of large individuals with somewhat primitive features together with smaller, evolutionarily more advanced dentition lions. The third period covers the first part of the last glacial, from MIS 5 to the beginning of MIS 3. For this period, the occurrence of moderate sized specimens with evolutionarily advanced dentition is documented. The last period began with dramatic population decline and genetic variability reduction. It lasted from MIS 3 and 2, and within it size drops sharply. Among moderate sized specimens, very small lions with somewhat lesser posture also appeared. Asian or African affinities as a result of a new migration event for those dwarf lions could not be ruled out. Size decrease showed that Panthera spelaea was a dynamically evolved species. Thus, the size does not seem to be a reliable criterion in determining the age of cave lion findings. The general overview is complicated by the great sexual dimorphism, local evolution and extinction, climatic conditions, and migrations. Size changes in P. spelaea evolution cannot be used as a useful biochronological tool.
ABSTRACT The vast majority of fossil remains in Late Pleistocene deposits from Niedźwiedzia Cave ... more ABSTRACT The vast majority of fossil remains in Late Pleistocene deposits from Niedźwiedzia Cave in Kletno, Sudetes, Poland, belong to the cave bear. Phylogenetic analyses based on a fragment of the mitochondrial D-loop region extracted from two cave bear samples unambiguously showed their close relationship with the Ursus ingressus hap-logroup. This taxonomic affiliation of the cave bear remains from Niedźwiedzia Cave was further confirmed by biometrical analyses of molar teeth and skulls. Our results represent the first record of U. ingressus north of the Carpathian Arch, while radiocar-bon dating (> 49,000 yr BP) of the samples indicates that they represent some of the oldest specimens of this cave bear taxon known so far. Multi-method phylogenetic analyses including numerous publicly available cave bear sequences allowed analys-ing the relationships among these samples in details, including the significance of par-ticular clades, and discussing some aspects of cave bear phylogeography. The sequences of U. ingressus from Poland are most closely related to specimens from the Ural Mountains and next to Slovenia, which may indicate migrations between Central and Eastern European populations. The internal placement of Ural samples among European specimens in phylogenetic trees and the older age of Polish samples than those from Urals suggest that the eastward expansion of U. ingressus may have started from Central Europe.
The pre-Quaternary fossil record of Canis in the Old World is scarce, and the first appearance of... more The pre-Quaternary fossil record of Canis in the Old World is scarce, and the first appearance of this genus in Europe remains an enigma. Amongst the oldest fossils assigned to this genus, there is a natural cast of the brain (endocast) collected in Węże 1, Poland, from Pliocene deposits dated between 3.3 and 4.0 Ma. We reexamined this specimen and found that it differs from the brain of Canis in having its region medial to the coronal sulcus heart-shaped in dorsal view, its region rostral to the presylvian sulcus shorter and less constricted laterally, and its cerebellum less overlapped by the cerebrum and lacking a lateral twist of the posterior vermis.We identified this fossil, as well as another fossil canid endocast from Węże 1, as representing the raccoon dog genus Nyctereutes. The previously reported presence of Canis in Węże 1 is therefore not confirmed. Specifically, both endocasts can be referred to N. donnezani because this is the only species of Nyctereutes that has been recognised in this locality on the basis of craniomandibular and dental fossils. Our study represents a taxonomic application of comparative neuroanatomical and palaeoneurological data, an approach that may become increasingly useful with the growing knowledge of the endocranial morphology of fossil mammals.
Acta Zoologica Cracoviensia - Series A: Vertebrata, 2011
ABSTRACT A right fragment of the maxilla of Gulo gulo was found in the Late Pleistocene locality ... more ABSTRACT A right fragment of the maxilla of Gulo gulo was found in the Late Pleistocene locality of Kaniv in central Ukraine. The specimen is assigned to the Late Pleistocene form because of its large size and morphological characters of teeth. Fossil remains of Gulo gulo are known from 10 localities in Ukraine, but most of them are not well dated. Palaeontological and historical records of wolverine from Ukraine are discussed.
ABSTRACT The deposits of Biśnik Cave yielded numerous bear remains from sediments dated to the MI... more ABSTRACT The deposits of Biśnik Cave yielded numerous bear remains from sediments dated to the MIS 8–MIS 3 interval. This situation allowed examination of the paleoecology of Ursus spelaeus over time, compared with two other species of bears: Ursus deningeri and Ursus arctos, also present in fossil material from Biśnik Cave. The stable isotope ratios (δ13C, δ18O) in tooth enamel were applied in combination with examination of seasonal deposition of dental cementum. The δ13C values showed the diet of each bear species stayed in the range of C3 plants. Results for U. spelaeus showed a wider range of δ13C values than for U. deningeri or U. arctos. The values are relatively negative in comparison to fossil bears from other European sites. Low δ13C values observed in bears from Biśnik Cave could be linked to a canopy effect and document a forested environment for these bears. No correlation between δ18O and δ13C values was noted. The cementum analysis revealed that season of death of all species was winter and all studied specimens died during hibernation. The highest mortality concerned mostly individuals below 4 years old and the highest individual aged was U. deningeri.
ABSTRACT In this paper, the evolution of wolves and deer is presented as expressed in changes in ... more ABSTRACT In this paper, the evolution of wolves and deer is presented as expressed in changes in size and proportions in molars, metapodials and phalanges, which are well represented in the fossil record. This has two advantages: firstly, samples are often large, and secondly this is a taxon-free approach, focussing on the data, rather than presenting the lineages in the form of sequences of names of chrono species or subspecies. This allows more precise documentation of the changes. Occasionally rapid evolutionary changes are found, which mark a time slice and which have biochronologic value. Several canid and deer lineages were studied previously in this way, while others are presented for the first time here, and Polish material is incorporated in all. In some cases, the Polish material helps to improve the timing of the evolutionary events, while in others, the existing information is used to confirm or improve the dating of Polish localities.
ABSTRACT This study analyzed size changes in the course of the time among European Middle and Lat... more ABSTRACT This study analyzed size changes in the course of the time among European Middle and Late Pleistocene lions. The general decreasing size as a tendency in cave lion evolution is confirmed. The whole time span of lion presence in Europe was divided into four main periods. The first period covers Middle and late Middle Pleistocene (MIS 19-17 to MIS 7-6) and is characterized by the presence of very large individuals with somewhat primitive morphology. It might be cautiously said that lions in that time were comparatively large throughout the Middle and late Middle Pleistocene. The second period included the last part of the late Middle and the beginning of the Late Pleistocene (MIS 6-5). This period is documented by a mixed presence of large individuals with somewhat primitive features together with smaller, evolutionarily more advanced dentition lions. The third period covers the first part of the last glacial, from MIS 5 to the beginning of MIS 3. For this period, the occurrence of moderate sized specimens with evolutionarily advanced dentition is documented. The last period began with dramatic population decline and genetic variability reduction. It lasted from MIS 3 and 2, and within it size drops sharply. Among moderate sized specimens, very small lions with somewhat lesser posture also appeared. Asian or African affinities as a result of a new migration event for those dwarf lions could not be ruled out. Size decrease showed that Panthera spelaea was a dynamically evolved species. Thus, the size does not seem to be a reliable criterion in determining the age of cave lion findings. The general overview is complicated by the great sexual dimorphism, local evolution and extinction, climatic conditions, and migrations. Size changes in P. spelaea evolution cannot be used as a useful biochronological tool.
Uploads
Papers by Adrian Marciszak