共查询到20条相似文献,搜索用时 15 毫秒
1.
Alba DM Carlos Calero JA Mancheño MÁ Montoya P Morales J Rook L 《Journal of human evolution》2011,61(6):703-718
The macaque material from the Early Pleistocene site of Quibas (Albanilla, Murcia, Spain), including dentognathic remains, isolated teeth and some postcranial bone fragments, is described. Both metrically and morphologically, this sample must be attributed to Macaca sylvanus (the Barbary macaque). This species is currently distributed through North Africa and Gibraltar, but was much more widely distributed during the Plio-Pleistocene, being represented by several European fossil subspecies. Metrical comparisons of dental size and proportions between extant M. s. sylvanus and fossil Macaca sylvanus florentina from the type locality and other Italian sites are undertaken, in order to classify the remains from Quibas at the subspecies level. The results show that the Quibas sample not only fits the range of variation of M. s. florentina from the type locality, but also differs from the extant Barbary macaque condition in several regards. This permits us to formally attribute the material from Quibas to M. s. florentina. The material described in this paper therefore significantly improves the knowledge of this fossil taxon, particularly regarding the upper dentition, and further confirms the taxonomic distinctiveness of this extinct taxon at the subspecies rank. Taken as a whole, M. s. florentina largely overlaps in dental dimensions with M. s. sylvanus, but differs from the latter by displaying (on average): (1) absolutely longer upper molars (especially M1 and M3); (2) relatively wider upper molars (especially M1 and M2); (3) longer M3 as compared with the M2; (4) absolutely longer M1 and M3; and (5) relatively narrower M3. 相似文献
2.
Manuel Munuera Giner José Sebastián Carrión García Cristina Navarro Camacho 《Aerobiologia》2002,18(2):141-151
During six consecutive years (1993–1998), aBurkard volumetric pollen trap was continuouslyoperated to sample pollen from the air of thecity of Murcia. The aim of the study was toelucidate the spectra of airborne pollen andthe variations during the year, and toelaborate a pollen calendar. This time spanincludes the end of the period with severedrought from 1990–1995, which particularly affected the south-eastern region of Spain.The total sum of daily average pollenconcentrations amounted to 148,645 pollen grainsbelonging to 93 different taxa. A daily averageof 74 pollen grains/m3 and 11 taxa wererecorded, with maxima of 1157 and 27respectively. The total pollen amountregistered in a year correlated with yearlyrainfall, but there was no relation with meanannual temperature. As for annual fluctuations,there seemed to be no influence by totalrainfall or temperature. Spring and winter werethe seasons with the highest pollen counts andpollen diversity.From the 93 identified taxa, 36 are included inthe pollen calendar. Noteworthy findings are:(i) the presence of Thymelaeaceae,Robinia, Betula, Castanea,Zygophyllum, Caryophyllaceae andCannabis, (ii) a long pollen season ofChenopodiaceae/Amaranthaceae, Urticaceae,Poaceae, Arecaceae and Plantago, (iii)the occurrence of summer, autumn and winterflowering of Artemisia, (iv) the lateappearance of Corylus pollen, and (v) theminor presence of Casuarina pollen duringthe mid winter and late spring. 相似文献
3.
Manuel B. Crespo 《Folia Geobotanica》2009,44(2):177-190
A new species, Limonium scopulorum (Plumbaginaceae), is described from the maritime cliffs of Alicante province, Spain (southeastern part of the Iberian Peninsula). This new taxon belongs to the group of Limonium delicatulum, which is highly diversified in the Mediterranean territories of the Iberian Peninsula. It is related to the Balearic species L. biflorum, though several leaf, floral and chromosomal features warrant its easy recognition. Molecular divergence, shown in previous studies, also supports its separate treatment. Major affinities and differences with other related taxa are discussed. Moreover, morphological, ecological, chorological, biogeographic features of the new taxon are discussed, and its conservation status is reported. An identification key is provided for Spanish taxa of the Limonium delicatulum group. 相似文献
4.
DAVID D. BERMÚDEZ‐ROCHAS GRACIELA DELVENE J. IGNACIO RUIZ‐OMEÑACA 《Lethaia: An International Journal of Palaeontology and Stratigraphy》2013,46(1):57-70
Here, we present evidence of possible vertebrate predation on freshwater bivalves from the Lower Cretaceous strata of the Cameros Basin (Spain). The described collection contains the largest number of vertebrate‐inflicted shell injuries in freshwater bivalve shells yet reported in the Mesozoic continental record. Several types of shell damage on fossil shells of Protopleurobema numantina (Bivalvia: Unionoida) are described and their respective modes of formation interpreted in the context of morphological attributes of the shell injuries and the inferred tooth morphology of predators that could have inflicted such injuries. Detailed study of these bite marks shows similarities with the well‐documented injuries in the shells of marine molluscs, namely ammonoids, that have likewise been attributed to reptilian predators. The most parsimonious interpretation suggests crocodiles as the vertebrates interacting with the bivalves in the Cameros Basin. □Barremian–Aptian; bite marks; freshwater bivalves; predation; reptile; Unionoida. 相似文献
5.
Annual variations in the abundance ofAlternaria spores were related to the length of the spore period for data from Murcia (southeastern Spain). To understand the relationship between the number of spores and climatic factors,Alternaria spore counts for March 1993 to February 1994 were examined by means of correlation and regression analyses with fourteen different weather parameters. The results indicated that there was a tendency forAlternaria spore concentrations to increase with increases in temperature, wind speed and hours of sunshine. Negative correlations were observed with air pressure, wind direction and humidity. Theoretical curves forAlternaria spore counts are given in relation to temperatures during the period studied. 相似文献
6.
A revision of the Pliocene representatives of the Ilyocyprididae genera Ilyocypris Brady and Norman, 1889, and Qinghaicypris Huang, 1979, obtained from lacustrine sediments of the Villarroya section (La Rioja, N. Spain) is presented in this work. Based on carapace morphology and morphometrics, the occurrence in Europe of the genus Qinghaicypris is discussed. This genus is represented in this material by a new species, Qinghaicypris riojensis nov. sp., which is described herein. The occurrence of Ilyocypris and Qinghaicypris within the lacustrine series of Villarroya is analysed in relation to the hydrological evolution of the water bodies, which were very likely climatically driven. Palaeoecological as well as palaeobiogeographical interest of those genera is pointed out in the context of the aquatorium that spread over big areas of Europe during the Pliocene. 相似文献
7.
The biochronological age of the small-mammal populations of Los Gargantones 1, 2 and La Celia (upper Miocene, La Celia sub-basin, Murcia, Spain) is re-interpreted. The presence in Los Gargantones of Occitanomys adroveri, Parapodemus barbarae, Parapodemus cf. gaudryi, Huerzelerimys turoliensis, Atlantoxerus cf. adroveri, and Alilepus evidences a correlation to MN12 (∼7.5–7 Ma) rather than to MN11 (∼9–7.5 Ma), as inferred previously. The assemblage corresponds to that of the more eastern, near-coast sites of Crevillente 8 and 15, situated in the Alicante area. The stratigraphically highest site of La Celia contains Hispanomys adroveri, a species also indicative of MN12. The presence of Castromys cf. littoralis together with an advanced O. adroveri points to a slightly younger age than that of Los Gargantones, approaching that of MN13 sites. The assemblage best matches that of Crevillente 17. Other species described in this paper are Prolagus crusafonti, Prolagus sp., Parasorex cf. ibericus, Panelimnoecus cf. repenningi, and Blarinella aut Petenyia sp. indet. 相似文献
8.
Mónica G. Candela Gonzalo G. Barberá Angel Sallent Luis León 《European Journal of Wildlife Research》2008,54(2):373-377
The current work shows the first step in the knowledge on the health status of European storm petrel (Hydrobates pelagicus) colony inhabiting Grosa Island (Murcia, SE Spain). We performed a screening about the bacterial pathogens carried by them
(among the infectious agents checked, bacteria of the orders Mollicutes and Chlamydiales, and the genera Salmonella are of main interest) and compare these results with similar works performed in Larus species because most of the breeding colonies of storm petrel share habitats with gull colonies, and these could become pathogen
reservoirs to petrels. Our results show the European storm petrels sampled have absence of pathogens of main interest and
low levels of opportunistic pathogens. No Mycoplasma species were isolated, and no Chlamydophila psittaci were demonstrated by lipopolysaccharide antigen immunodetection. The commensal bacteria were isolated in higher frequencies
than the previous [Staphylococcus epidermidis (5/15), Staphylococcus hominis (2/15) and Staphylococcus aureus (1/15)]. The rate of isolation of Gram-negative was lower than in the previous Gram-positive bacteria [Pasteurella sp. (1/15) and Pseudomonas aeruginosa (1/15)], and no Enterobacteriaceae were isolated. The absence of pathogen carriers on European storm petrel is the main conclusion of this survey; it is an
evidence that the bacterial infectious pathogens described in gulls may not be an important selective force on their survival. 相似文献
9.
Méndez N 《Revista de biología tropical》2006,54(3):773-785
Polychaetes inhabiting deep-sea soft bottoms from the southeastern Gulf of California were collected during four oceanographic cruises during 2000 and 2001. Sampling of benthic organisms was performed with a benthic sledge to collect epifauna and a Karling dredge for epifauna and infauna, in a depth range from 732 to 2 250 m. A list of the polychaetes that were collected and their distribution are presented here. A total of 73 species (distributed among 33 families) were identified. Moreover, 11 species were identified only to genus level and 20 species only to family level. With the exception of Ancistrosyllis hartmanae and Melinnampharete eoa, all identified species have been previously reported in soft bottoms of the Gulf of California or in adjacent areas. Additional previously unreported information is provided herein regarding depth ranges, geographical distribution, morphology and tubes inhabited by the organisms. The morphology of the ampharetids Amage sp. and Samytha sp. does not coincide with that of other species in these genera reported for the Gulf of California, which suggests that they are probably undescribed species. 相似文献
10.
Agustín Lahora Cano Pedro Sánchez Gómez Juan Francisco Jiménez Martínez 《Folia Geobotanica》2012,47(3):317-335
Currently, there are nine species classified within the genus Coronilla (Loteae, Fabaceae); however, some populations discovered in the province of Almería, SE Spain, have features that are not present, as a whole, in the other known species. These plants are related to Coronilla juncea and C. minima, although several features of branches, leaves, flowers and seeds (zigzag branches; fleshy, deciduous leaves without hyaline margin; connate reddish stipules; very narrow seeds with fluted foveolae) are usually recognized as belonging to distinct species. To clarify the taxonomic status of these populations, morphological and genetic studies have been performed. The results obtained suggest that their separate classification is appropriate. Accordingly, a new species, Coronilla talaverae, whose currently recorded range is restricted to three populations in southeastern Spain is described here. Regarding its risk of extinction, the IUCN red list criteria have been followed to assess its category, proposing the status EN B1ab(i,ii,iii,v)+2ab(i,ii,iii,v). In addition, an identification key is provided for the species of the genus Coronilla. 相似文献
11.
Francisco Javier Ruiz-Sánchez Jose Ignacio Lacomba-Andueza Matthijs Freudenthal Mari Ángeles Álvarez-Sierra 《Pal?ontologische Zeitschrift》2014,88(1):73-84
In this paper, a new species of Vasseuromys, V. bergasensis sp. nov., from the locality of Bergasa (Ebro Basin, Spain), is described. Bergasa contains a fauna belonging to the Late Oligocene (zone MP30), composed—among other species—of Issiodoromys pseudanaema and Rhodanomys transiens. The main diagnostic features of V. bergasensis sp. nov. are the presence of a long centrolophid (fused or not to the mesoconid) in the lower molars, a large reduction in the number and length of extra ridges in the upper and lower molars, the absence of extra ridges between metalophid and centrolophid and between centrolophid and mesolophid, and the absence of the metatrope in more than half the specimens of the upper teeth M1 and M2. V. bergasensis sp. nov. is similar in size to V. elegans and smaller than the other members of the genus. The age and simple dental pattern of the new species of Vasseuromys allow us to hypothesize about relationships within the genus. 相似文献
12.
Serpulids and other related tube-dwelling polychaetes are often ignored when found as fossil remains. They are, however, a widespread and important group today, and abundant literature has been published on them. Knowledge of fossil serpulids is centered on European material, and little has already been done on South American fossil calcareous tubes. In this paper, seven serpulid and sabellid morphotypes are described from the Early Cretaceous marine Agrio Formation of Argentina, revealing a diversity of worms recorded as encrusters on bivalves, ammonites and corals. Sabellids are represented by Glomerula cf. serpentina. Serpulids are represented by two subfamilies: “Serpulinae” includes Mucroserpula mucroserpula, Parsimonia antiquata, Placostegus cf. conchophilus, Propomatoceros semicostatus and P. sulcicarinatus; Spirorbinae is represented by heavily worn tiny coiled tubes assigned to ?Neomicrorbis. Serpulids and sabellids are one of the main components of the mollusk-encrusting fauna recorded in the Agrio Formation, along with small oysters but much more diverse. They are most commonly found as post-mortem encrusters, but some cases of unquestionable living interaction are also found, such as serpulid tubes embedded on coral branches. They are often overgrown by bryozoans, and sometimes by oysters; they frequently occur aggregated. 相似文献
13.
ADIËL A. KLOMPMAKER 《Lethaia: An International Journal of Palaeontology and Stratigraphy》2011,44(4):429-439
Klompmaker, A.A. 2011: Drilling and crushing predation on scaphopods from the Miocene of the Netherlands. Lethaia, Vol. 44, pp. 429–439. Reports on the predators of scaphopods are rare. This study records two types of predation traces on the Miocene dentaliid scaphopod Fissidentalium sp. from Langenboom in the Netherlands. The first type is demonstrated by naticid drillholes, located primarily on the middle (and thickest) part of the shell. Based on the examination of more than 700 specimens, the percentage of completely drilled scaphopods is low, at 1%. This is in line with the first graphical overview of drilling percentages on scaphopods through time. The second type of predation is found as jagged, arcuate margins at the functionally anterior end of a significant part of the scaphopod population. These breakages were not caused by pressure due to overburden, as experimental results indicate that such breakages form at right angles to the longitudinal axis of the shell. Reworking was also ruled out, mainly because the breakages were formed at the anterior end of the shell only. Rather, the damage is attributed to carnivorous decapods chipping/peeling with their claws or mandibles. The predation traces suggest that Fissidentalium sp. was a shallow burrower. □Scaphopoda, drillholes, predators, Miocene, the Netherlands, Langenboom 相似文献
14.
Abundant information on drilling predation upon fossil bivalves, gastropods, and brachiopods has been accumulated during the past several decades, but very little is known about the predation on marine, infaunal carnivorous scaphopods. A survey of over 440 specimens of the scaphopod Dentalium gracile collected from the Upper Cretaceous Millwood Member (Campanian) of the Pierre Shale at a site near Russell, Manitoba displays a drilling percentage of approximately 35%. This figure is higher than previously reported for the scaphopods of similar age elsewhere, but is comparable to or lower than that of the sub-Holocene (34–61%). The difference in drilling percentage among different collections may be taxon-related or affected by the composition and structure of the fossil community. Morphologically, the drill-holes, produced by predatory drilling, are beveled with a countersunk profile of clean sharp edges. The drill-hole inner margin is ovate whereas the outer margin is nearly circular. Among the Manitoba specimens, drill-holes seem to be more common on the lateral side. Presumably due to the lack of effective defense strategy, the prey effectiveness is low (∼3.2%). There is no correlation between drill-hole dimension and scaphopod prey size, indicating that predator size does not correlate with the prey size. Nearly 480 specimens of cephalopods, pelecypods, and gastropods were also collected from the same community. There were only a total of 16 drill-holes on this additional material. Over 400 specimens of the only naticid Euspira obliquata were recovered from the same site and are believed to be the predators of the scaphopods and other molluscs. The low percentage (∼2.5%) of drilling on the abundant gastropod E. obliquata may indicate mistaken or opportunistic attacks by the predator, or that the cannibalism is not common in this community. 相似文献
15.
The development of Pomatoleios kraussii is extremely similar to that of Pomatoceros triqueter , and is completed under laboratory conditions in 1–3 weeks at 25–27°C. Mature larvae settle and metamorphose preferentially on the shells of adult conspecifics. 相似文献
16.
Summary The development of peculiar margin facies and abundant talus breccias within the Dolomia Principale inner platform is commonly
observed in the Lombardy Basin during the Norian. The organisms building these margins are mainly serpulids, benthic microbes,
subordinate porostomata and other encrusting forms; typical margin organisms, as sponges or corals, are extremely rare or
absent. The build-ups form narrow rims along the borders of tectonic-controlled intraplatform basins. Regional back-stepping
and progradation of the margin facies on the talus breccias produced by the erosion of the reef is commonly observed in the
uppermost Dolomia Principale depositional system. Widespread occurrence of serpulids and microbial margins in middle-late
Norian times is indicative of stressed environmental conditions—fluctuation of salinity and temperature on the inner platform
and in the intraplatform basins—controlled by palaeogeographic setting. Physical characteristics allowed the bloom of forms
able to develop in a wide range of environmental conditions, such as serpulids.
In the Late Norian, major input of fine-grained clastics is recorded; close to the Norian-Rhaetian boundary, carbonate ramps
were regionally restored. Locally, small serpulid and microbial bioconstructions still persist in the lowermost part of the
shaly succession, even if they are less abundant with respect to the Dolomia Principale. Patch-reefs generally do not build
a platform margin, but represent isolated mounds within shaly deposits. These build-ups occur on the edge of former structural
highs; the communities survived the environmental change responsible for the siliciclastic input and locally managed to produce
mounds during the deposition of the lower part of the upper depositional system (Riva di Solto Shale). 相似文献
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19.
This brief report is part of an extensive research which aims to describe different somathoscopic and dermatoglyphic characters of the Spanish population of the Mediterranean. Palmar flexion creases are of a somathoscopic character, independent of dermatoglyphics, they have been scarcely studied in European populations compared to other geographical areas. In this study the results of two Spanish Mediterranean Populations (Delta de l'Ebre and Murcia) have been reported. In the Spanish variation range, Delta de l'Ebre shows the lowest DRBC frequencies, while Murcia presents the highest. Comparisons with various Indian samples also show extreme statistical differences, due to their opposite distribution of the SRBC and TRBC types with respect to Europeans, except for the Punjabi population, which seems to be more similar to the Europeans than to the Indians. 相似文献
20.
Polychaete assemblages associated to the sponge Geodia cydonium were investigated at two sampling sites in the Mediterranean Sea: Porto Cesareo Basin (Apulia) and Marsala Lagoon (Sicily), both characterized by sheltered hydrodynamic conditions. Samples were seasonally performed during 1997, in order to compare the assemblages coming from the two localities studied, considering separately the internal and external tissues of the sponge, and with the aim of evaluating the influence of sponge size on polychaete colonization. The examined sponge is characterized by a peculiar stratification of its tissues: an external thick and hard layer, the cortex, and an internal softer one, the choanosome. Statistical analysis showed that this was the main factor controlling polychaete assemblage, with the internal tissue, less rich and diversified, appearing impoverished with respect to the external layer. A similarity in species composition was observed between sites, even though some differences were evidenced in the abundance of some species, mainly reflecting differences in local environmental conditions. Species richness and density increased with the increasing sponge size. Such a situation is particularly evident at Porto Cesareo, where sponges are covered by an algal layer which is particularly rich on the largest specimens, thus suggesting that most of the species of polychaetes were linked more to the neighbouring environment than to the sponge itself. 相似文献