Mostly parks and forest are the most important ‘green islands’ in urban ecological network. Urban forests are belong to green areas and collected many plant species. The main aim of the article was characteristic of ancient plant species in urban forests in Tarnów. The field studies were carried out in years 2011–2012. It covered 80 phytosociological records on the area 500 m2 in herb layer of urban forests and in forest nature on oak-hornbeam. The results showed that many ancient plant species were growing in urban forest but less than in nature reserves.
Nine species of the Famennian phacopid trilobites are described from the southern part of the Holy Cross Mts. In addition to forms already recorded from this area the writer describes some species never before found in Poland, as well as two quite new species, namely: Trimerocephalus polonicus and Dianops? trifolius.
En se basant sur de très abondants matériaux de Chitinozoaires, extraits principalement des galets erratiques ordoviciens, I'auteur a fait une étude morphologique détaillée de 5 représentants typiques de ce groupe de microfossiles énigmatiques. Dans les matériaux rassemblés, outre des logettes isolées, ont été trouvés des assemblages de logettes, jusqu'ici inconnus, appartenant à Desmochitina minor Eis., Cyathochitina campanulaeformis Eis. et Parachitina curvata Eis. L'auteur conclut que: 1° tous les Chitinozoaires formaient vraisemblablement des assemblages, 2° leurs logettes correspondent selon toute probabilité, à des oeufs ou à des sacs ovigères des Métazoaires, et 3° des formes morphologiquement identiques ou voisines des Chitinozoaires sont inconnues dans la faune d'aujourd'hui.
Kernels of ancient hulled wheat species, Triticum monococcum, T. dicoccon, T. spelta, and threshable wheat species, T. polonicum, T. turanicum ('Kamut®'), were studied. Fusarium culmorum-infected kernels, classified as FDKs (Fusarium damaged kernels), were smaller, shrunken, wrinkled and lighter in colour than healthy kernels. The seed coats of the former were usually damaged, and white or pinkish-white mycelium formed on their surface. FDKs showed different fungal infection levels. Characteristic structural changes were noted in endosperm cells, including loosely arranged starch granules, a partial or even complete absence of the protein matrix enveloping starch granules, the disappearance of small starch granules and the presence of damaged large starch granules. The lowest degree of damage was observed in emmer and spelt kernels.
Currently, there are two sauropod taxa known from the Upper Cretaceous (Maastrichtian) Nemegt Formation of Gobi Desert, Mongolia: Nemegtosaurus from the Nemegt locality and Opisthocoelicaudia from the Altan Uul IV locality. Both taxa are represented by not overlapping elements (skull and partial postcranial skeleton respectively), which arises question on their possible synonymy. Five articulated sauropod dorsal vertebrae (PIN 3837/P821, dorsals 6–10) were found in 1949 by the Mongolian Expedition of the Academy of Sciences of the USSR at the Nemegt locality. This specimen is similar to Opisthocoelicaudia in having a strong ventral ridge on dorsal centra, a low neural arch which is anteroposteriorly narrowest at the junction with the centrum and widens dorsally, and lack of hyposphene–hypantrum articulations. PIN 3837/P821 differs from Opisthocoelicaudia by having the less dorsoventrally flattened dorsal centra, a shallow ventral concavity of dorsal centra in lateral view, a vertical posterior centrodiapophyseal lamina (pcdl) in dorsals 8 and 9, a postzygodiapophyseal lamina (podl) that roofs the centrodiapophyseal fossa (pocdf), and strongly developed accessory laminae within the parapophyseal centrodiapophyseal fossa (pacdf). The sauropod femora from Nemegt Formation differ from the femur of Opisthocoelicaudia by the medial condyle extending more distally compared with the lateral condyle. Most likely these femora and PIN 3837/P821 belong to Nemegtosaurus, which would make this taxon distinct from Opisthocoelicaudia by discussed characters of dorsal vertebrae and femur
Until now Darbonetus was represented by only one valid species, the type species D. aubrelongensis from the early Oligocene of the Quercy region, France. A late appearance of this genus and of its closest relative Amphidozotherium have been thought to result from dispersal from outside western Europe, rather than a local ancestry earlier in the late Eocene. Here, a new species, Darbonetus sigei sp. nov., is described from the middle Priabonian site of La Débruge, France. Although clearly closely related to D. aubrelongensis, D. sigei shows less reduction of its p2, p3, and m3 than in the more derived type species. The early age of D. sigei suggests that its origins were within the still isolated central European island and that it is unnecessary to invoke dispersal from another continent.
A description and analysis is given of three Neogene odontocete caudal vertebrae that were bitten by the extinct megatooth sharks Carcharocles megalodon or Carcharocles chubutensis. The peduncular caudal vertebrae show bilateral gouge marks consistent with having been actively bitten and wedged between adjacent teeth of C. megalodon or C. chubutensis. None of the vertebrae show signs of healing. The occurrence of bite marks on distal caudals suggests active predation (vs. scavenging) in order to immobilize even relatively small prey prior to consumption.
Although the distribution of Asian crocodyliforms was extended northwards during the Paleocene–Eocene greenhouse world, the fossil record in northern Asia becomes scarce towards the end of the Eocene. We here report the first crocodyliform (an isolated tooth) from the upper Eocene Ergilin Dzo Formation of southeastern Mongolia, the mammalian fauna of which defines the Ergilian Asian Land Mammal Age. The conical non-recurved crown, the near complete root with the central resorption facet, and its late Eocene age suggest the crocodyliform affinity of the tooth. The current finding represents one of the northernmost occurrences of crocodyliforms in the upper Eocene of Asia (paleolatitude ca. 49°30’ N), and demonstrates that SE Mongolia probably met thermal requirements of crocodyliforms during the late Eocene.
Fossil turtles are one of the least studied clades in regard to endocranial anatomy. Recently, the use of non-invasive technologies, such as radiographic computed tomography (CT), increased the knowledge of the neuroanatomy of several extinct and extant taxa. Here, we provide the description of the nasal cavity, cranial endocast, and inner ear of the stem turtle Naomichelys speciosa based on digital 3D reconstructions. This terrestrial form is characterized by a nasal cavity with anteroposteriorly elongated vestibulum and a large cavum nasi proprium, traits typically related to terrestrial habits. The large olfactory region of the cavum nasi proprium suggests that olfaction was probably the most important sense for this species. Our description of N. speciosa adds novel information to the knowledge of endocranial anatomy in early turtle evolution and provides an important foundation for future analyses and comparisons.
We present a systematic study of late Paleocene macrofauna from methane seep carbonates and associated driftwood in the shallow marine Basilika Formation, Spitsbergen, Svalbard. The fauna is composed of 22 taxa, comprising one brachiopod, 14 bivalves, three gastropods, three crustaceans, and one bony fish. The reported fish remains are among the first vertebrate body fossils from the Paleogene of Spitsbergen. One genus is new: the munidid decapod Valamunida Klompmaker and Robins gen. nov. Four new species are described: the terebratulide brachiopod Neoliothyrina nakremi Bitner sp. nov., the protobranch bivalve Yoldiella spitsbergensis Amano sp. nov., the xylophagain bivalve Xylophagella littlei Hryniewicz sp. nov., and the munidid decapod Valamunida haeggi Klompmaker and Robins gen. et sp. nov. New combinations are provided for the mytilid bivalve Inoperna plenicostata, the thyasirid bivalve Rhacothyas spitzbergensis, the ampullinid gastropod Globularia isfjordensis, and the munidid decapod Protomunida spitzbergica. Thirteen taxa are left in open nomenclature. The fauna contains a few last occurrences of Cretaceous survivors into the Paleocene, as well as first occurrences of Cenozoic taxa. It is composed of chemosymbiotic thyasirid bivalves and background species common in the northern Atlantic and Arctic during the Paleocene. Our results provide no evidence for a Paleocene origin of vesicomyid and bathymodiolin bivalves typical for Eocene and younger seep environments; instead, the Paleo cene seeps of the Basilika Formation are more similar to their Late Cretaceous equi valents rich in thyasirids.
Khurendukhosaurus is an enigmatic genus of choristodere, recorded from the Lower Cretaceous of East Asia, Mongolia, and Siberian Russia. Until now, it was known only from isolated skull and postcranial elements, limiting comparison with other genera. Three major morphotypes have been recognised within Choristodera: longirostrine neochoristoderes with short-necks, and brevirostrine non-neochoristoderes with either short or long necks. The morphotype of Khurendukhosaurus was uncertain, although it had been inferred to be long-necked, based on cervical and caudal vertebral morphology shared with the Chinese Hyphalosaurus and on the results of phylogenetic analysis that placed it within a clade of Sino-Japanese long-necked taxa. Newly discovered material from the Mongolian type locality, Khuren-Dukh, preserves most major postcranial elements of a single individual. This specimen confirms that Khurendukhosaurus belongs to the long-necked morphotype, in having at least 13 cervical vertebrae. Moreover, a new phylogenetic analysis supports the placement of Khurendukhosaurus as a sister group of the Hyphalosaurus + Shokawa clade. Based on the new material, Khurendukhosaurus is estimated to have been roughly 1 m in total length, placing it at the upper end of the size range for long-necked choristoderes.
The caudofemoralis longus muscle (CFL) is the primary limb retractor among non-avian sauropsids, and underwent a dramatic reduction along the dinosaur lineage leading to birds. The osteological correlates of the CFL among fossil reptiles have been controversial, because, contrary to traditional interpretations, the extent of the muscle is not necessarily related to the distribution of the caudal ribs. In some Cretaceous dinosaurs, the extent of the CFL has been inferred based on the preserved bony septa between the CFL and other tail muscles. Here, we describe a series of tail vertebrae of the Jurassic dinosaur Allosaurus, each showing a previously-unreported feature: a sulcus, formed by a regular pattern of tightly packed horizontal slits, that runs vertically along the lateral surfaces of the centra and neural arches. These sulci are interpreted as the origin attachment sites of the CFL, allowing for direct determination of the muscle extent along the tail of this dinosaur. Anteriorly to the 18th caudal vertebra, the sulcus runs along most of the centrum and neural arch, then it progressively reduces its vertical extent, and disappears between caudals 24 and 32, a pattern consistent with previous CFL reconstructions in other theropods.
This paper describes the astogeny and structure of Gymnograptus linnarssoni (Moberg) and G. retioloides (Wiman) and also the structure of Gymnograptus sp. The material has been etched from erratic boulders of Scandinavian origin, which are of Middle Ordovician age. The systematic position of the genus Gymnograptus is discussed.
Jan Czarnocki, éminent investigateur de la géologie des Monts de Ste -Croix (Góry Świętokrzyskie), a découvert en 1927 des empreintes de Méduses fossiles dans le Cambrien inférieur de la localité Brzechów. La collection lassie par Czarnocki comprend 118 individus plus ou moins fragmentaires. Ces Méduses sont attribuées à une seule espèce decrite ici sous le nom de Velumbrella czarnockii n. gen., n.sp. Cette forme s' approche surtout du genre Ediacaria Sprigg du Cambrien inférieur de l'Australie. Toutes les deux semblent appartenir aux Trachymedusae ou aux Limnomedusae.
A boring annelid- like parasite associated with Atrypa zonata Schnur from the Givetian shales of the Holy Cross Mountains (Góry Świętokrzyskie, Poland) is described under new generic and specific name - Diorygma atrypophilia.
Four species of plicatulas from the Middle and Upper Jurassic have been described. Their external and internal morphology, variability and ontogenetic development have been studied and their systematic and stratigraphic positions - discussed.
Two new Upper Bathonian species : Progonocythere polonica n. sp . and Progonocythere ogrodzieniecensis n, sp. are described from the Clydoniceras discus zone in Ogrodzieniec near Zawiercie, Poland. The ontogeny and development of the hinge in t he successive instars of the species P. polonica n . sp. have been studied. The presence there has been ascertained of a sieve plate closing up the lumen of straight pore canals.
This paper reports the results of investigations on the ontogeny, variation, dimorphism and structure of carapace in several species of Poleniella Gürich (Kloedenellidae) from Middle Devonian strata of the Holy Cross Mountains (Góry Świętokrzyskie) in Poland. Dizygopleura Ulrich & Bassler is regarded as a synonym of the genus Poloniella Gürich. Two new species: P. brevis and P. diversa have been distinguished; a description is given of the male specimens of two species, heretofore not recorded from Poland (P. tertia Krömmelbein, P. cingulata Warthin), also of two other species (P. kielanae Přibyl, P. devonica Gürich) previously reported from Poland.
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