Geodiversitas最新文献

{"title":"Cretaceous microporid cheilostome bryozoans from the Campanian historical stratotype of southwest France","authors":"P. Taylor, L. Villier","doi":"10.5252/geodiversitas2022v44a18","DOIUrl":"https://doi.org/10.5252/geodiversitas2022v44a18","url":null,"abstract":"ABSTRACT The Campanian of southwest France hosts rich and diverse bryozoan assemblages of global importance in tracing the faunal turnover from cyclostome to cheilostome dominance. Nevertheless, bryozoans from this historical stratotype region for the Campanian stage have been poorly studied, and most of the species erected by Alcide d'Orbigny in the 1850s remain unrevised. Here we focus on the four species of anascan-grade cheilostomes with opesiulate cryptocystal frontal walls, conventionally classified in the family Microporidae. One new genus and two new species are introduced: Platelinella solea n. gen. et n. sp. and Micropora mikesmithi n. sp. The enigmatic genus Dimorphomicropora Ducasse & Vigneaux, 1960 and the two species (D. voigti Ducasse & Vigneaux, 1960 and D. crestulata (Ducasse, 1958)) from southwest France are revised. Mandibulate polymorphs present in D. voigti resemble the B-zooids of Steginoporella but are unlikely to be homologous.","PeriodicalId":55111,"journal":{"name":"Geodiversitas","volume":"44 1","pages":"515 - 525"},"PeriodicalIF":1.8,"publicationDate":"2022-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44783028","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Pleuropholis germinalis n. sp., a new Pleuropholidae (Neopterygii, Teleostei) from the Early Cretaceous of Bernissart, Belgium","authors":"S. Olive, L. Taverne, P. Brito","doi":"10.5252/geodiversitas2022v44a17","DOIUrl":"https://doi.org/10.5252/geodiversitas2022v44a17","url":null,"abstract":"ABSTRACT The Barremian–Aptian (Cretaceous) locality of Bernissart, Belgium, yielded an assemblage of various actinopterygians. Among them, is the pleuropholid Pleuropholis germinalis n. sp., initially described as Pleuropholis sp. by Traquair at the beginning of the 20th century. Here, P. germinalis n. sp. is revised and fully described, and its assignment to pleuropholids confirmed. This new species is supported by a novel combination of characters, i.e. a robust preopercle with the horizontal limb as wide and high as the vertical limb, an entirely smooth posterior edge of the preopercle, a preopercular canal at equal distance from the dorsal and ventral borders of the preopercle ventral branch (autapomorphy of P. germinalis n. sp.), a short and upturned maxilla, a leptolepid notch in the median-dorsal part of the dentary, the quadrato-mandibular articulation lying anteriorly to the orbit, and a smooth posterior edge of flank scales.","PeriodicalId":55111,"journal":{"name":"Geodiversitas","volume":"44 1","pages":"505 - 514"},"PeriodicalIF":1.8,"publicationDate":"2022-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43705165","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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 Late Miocene colobine monkeys from Aragai (Lukeino Formation, Tugen Hills, Kenya)","authors":"D. Gommery, B. Senut, M. Pickford, Takeshi Nishimura, Joseph Kipkech","doi":"10.5252/geodiversitas2022v44a16","DOIUrl":"https://doi.org/10.5252/geodiversitas2022v44a16","url":null,"abstract":"ABSTRACT Up to the mid-1990's, only a few remains of Cercopithecoidea were known from the Lukeino Formation (Tugen Hills, Kenya). Surveys from 1998 onwards by the Kenya Palaeontology Expedition led to the discovery of new material at Aragai, a site situated in the lower levels of the Lukeino Formation dated at c. 6-5.8 Ma. Most of the collection consists of craniodental specimens generally well-preserved in a hard matrix but there are three postcranial bones. A new taxon of fossil colobine monkey is described: Sawecolobus lukeinoensis n. gen., n. sp. It is a small to medium-sized, short-faced colobine. Sawecolobus n. gen. shares many features with Cercopithecoides Mollett, 1947, especially in the face and the calvarium, but differs from it by the less pronounced supraorbital tori. The two genera differ greatly in mandibular morphology. In Sawecolobus n. gen. the mandibular corpus is slender and not robust as in Cercopithecoides Mollett, 1947, and the anterior surface of its symphysis is inclined posteriorly and not vertical. The numerous new specimens from the Lukeino Formation contribute to our understanding of the local diversity of Miocene Cercopithecoidea and fill out the distribution of the superfamily in the continent for the same period.","PeriodicalId":55111,"journal":{"name":"Geodiversitas","volume":"44 1","pages":"471 - 504"},"PeriodicalIF":1.8,"publicationDate":"2022-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42374770","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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 Vallesian large Palaeotragus Gaudry, 1861 (Mammalia: Giraffidae) from Northern Greece","authors":"Kostantis Laskos, D. Kostopoulos","doi":"10.5252/geodiversitas2022v44a15","DOIUrl":"https://doi.org/10.5252/geodiversitas2022v44a15","url":null,"abstract":"ABSTRACT We herein re-discuss the systematics of the Late Miocene representatives of the most common but poorly documented Eurasian giraffid genus Palaeotragus on the occasion of the review and description of new samples from the Vallesian faunas of Northern Greece. Our results detect five Late Miocene Palaeotragus morphotypes, recognizing at least four species. The so called ‘small-sized palaeotrages’ are represented by the type species P. rouenii and the Chinese P. microdon, whereas the validity of P. pavlowae from Grebeniki (Ukraine) is doubted. ‘Large-sized palaeotrages’ are mainly represented by P. coelophrys (synonym of P. expectans, P. borissiaki, P. hoffstetteri, P. quadricornis, and probably P. moldavicus), a species that thrived in the peri- Black Sea territories during Vallesian and survived during Turolian in the Irano-Anatolian domain, likely by adopting a more robust appearance. Large palaeotrages from the Vallesian faunas of Pentalophos and Ravin de la Pluie (Axios Valley, Greece) are identidied as P. coelophrys with certain confidence. The Vallesian P. berislavicus from Berislav (Ukraine) has intermediate morphometric features between P. rouenii and P. coelophrys and it is, therefore, recognized as a most probably valid species. The latest Vallesian Nikiti-1 (Chalkidiki peninsula) large palaeotrage shares many morphometric features with P. berislavicus, suggesting that the species may have invaded Balkans by the end of Vallesian and possibly survived there until middle Turolian. The Late Miocene Palaeotragus asiaticus from Central Asia is a quite problematic species; it appears closely related to the Turolian equivalent P. cf. coelophrys from China and both may be linked to the older Berislav taxon.","PeriodicalId":55111,"journal":{"name":"Geodiversitas","volume":"44 1","pages":"437 - 470"},"PeriodicalIF":1.8,"publicationDate":"2022-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48879279","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"First occurrences of Palaeogale von Meyer, 1846 in the Pacific Northwest, United States","authors":"Nicholas A. Famoso, J. Orcutt","doi":"10.5252/geodiversitas2022v44a14","DOIUrl":"https://doi.org/10.5252/geodiversitas2022v44a14","url":null,"abstract":"ABSTRACT The feliform carnivoran Palaeogale von Meyer, 1846 first appears in the Eocene of North America and had a Holarctic distribution in the Oligocene and early Miocene. Despite its large range, Palaeogale has not previously been reported from the Pacific Northwest of North America. We report three new specimens from the John Day Basin of Oregon that fill in this geographic gap. The oldest of these is a largely complete cranium from the Turtle Cove Member of the John Day Formation (Oligocene, 30.0-28.9 Ma). The other two specimens are a left and a right dentary from separate individuals, both recovered from the Kimberly Member (Oligocene, 25.3-23.5 Ma). Because Palaeogale species are almost entirely distinguished by their lower dentition, the cranium cannot be identified to species. However, the cranium is the oldest occurrence of the genus in the Pacific Northwest. The absence of a posterior accessory cusp on the p4 and of lateral expansion of the m1 protoconid allows the dentaries to be assigned to an endemic North American species, P. dorothiae MacDonald, 1963. This is not only the first instance of this species in the Pacific Northwest and outside of South Dakota and Nebraska, but also the last known occurrence of P. dorothiae. We expect that these specimens will inform future analyses of phylogenetics, systematics, morphology, and biogeography in Palaeogale.","PeriodicalId":55111,"journal":{"name":"Geodiversitas","volume":"44 1","pages":"427 - 436"},"PeriodicalIF":1.8,"publicationDate":"2022-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44768249","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mud lobster Thalassina Latreille, 1806 (Decapoda: Gebiidea: Thalassinidae), its Cenozoic occurrences in Italy and palaeobiogeography","authors":"M. Hyžný, A. De Angeli","doi":"10.5252/geodiversitas2022v44a13","DOIUrl":"https://doi.org/10.5252/geodiversitas2022v44a13","url":null,"abstract":"ABSTRACT Two specimens of Thalassina sp. are reported from the lower Oligocene sediments cropping out at Salcedo, Italy. Although the material is not sufficiently preserved to be identified below the genus level, it represents an important addition to the known fossil record of the genus. Thalassina sp. from Salcedo is considered the oldest and the only fossil occurrence of the genus from Europe; indeed, the previous reports on Thalassina grandidactylus Robineau Desvoidy, 1849 from the Cretaceous of France and Thalassina sp. from the Pliocene of Italy are disputed herein. Thalassina is today known only from the Indo-West Pacific region; however, unequivocal evidence of Thalassina in the Oligocene strata of Europe suggests the origin of the genus in the west Tethyan (modern circum-Mediterranean area). Alternatively, the geographic distribution of the genus might be wider in the Oligocene than it is today. The Italian material presented herein comes from marine settings with strong fluvial influence, suggesting that the environmental preferences of Thalassina have not changed since the Oligocene.","PeriodicalId":55111,"journal":{"name":"Geodiversitas","volume":"44 1","pages":"417 - 425"},"PeriodicalIF":1.8,"publicationDate":"2022-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43741049","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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 data on the theropod diversity from the Middle to Late Jurassic of the Vaches Noires cliffs (Normandy, France)","authors":"Evariste Monvoisin, R. Allain, E. Buffetaut, Laurent Picot","doi":"10.5252/geodiversi-tas2022v44a12","DOIUrl":"https://doi.org/10.5252/geodiversi-tas2022v44a12","url":null,"abstract":"ABSTRACT Dinosaur remains found at the Vaches Noires cliffs (Calvados, Normandy) have usually been discovered by amateur palaeontologists. The bones come from carcasses which drifted away from a nearby land (Armorican Massif) during the upper Callovian and lower Oxfordian. Most of these bones belong to private collections and are hardly accessible. Consequently, many of these bones were never described. Thus, and for the first time, private and public collections are gathered to obtain a global vision of theropod remains from the Vaches Noires cliffs. Most of the dinosaur remains from this locality belong to theropods. Some bones are from the same individual but have been isolated as a result of cliff erosion and tidal action which also mixed specimens from different stratigraphic levels. This over-representation of theropod remains is enigmatic because it is not found in other similar deposits. A specific way of life is likely to explain that fact, but it could also be a simple statistical effect due to a limited sample. At least 3 taxa are tentatively identified: Streptospondylus altdorfensis Meyer, 1832, another megalosauroid and an allosauroid.","PeriodicalId":55111,"journal":{"name":"Geodiversitas","volume":"44 1","pages":"385 - 415"},"PeriodicalIF":1.8,"publicationDate":"2022-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42427583","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Pierre Philis Fossil Hunter: un demi-siècle de recherches de vertébrés fossiles (1892-1942)","authors":"M. Faure, Ş. Şen, L. Costeur","doi":"10.5252/geodiversitas2022v44a11","DOIUrl":"https://doi.org/10.5252/geodiversitas2022v44a11","url":null,"abstract":"RÉSUMÉ Dans les muséums d'histoire naturelle et autres institutions à vocation de conservation, les collections de fossiles sont les trésors des paléontologues. Elles sont les conservatoires du monde vivant des temps géologiques. Il importe aux paléontologues de connaître l'histoire des collections qu'ils consultent pour diverses raisons, que ce soit pour comparer les nouvelles découvertes avec les fossiles déjà connus ou pour réviser la systématique d'un groupe d'organismes ou d'une lignée évolutive. Dans cet article nous nous sommes intéressés à l'histoire de certaines collections de mammifères fossiles conservées dans les Muséums d'Histoire naturelle de Paris, de Bâle, ainsi qu'à l'Université Claude Bernard et au Muséum de Lyon. Derrière ces collections il y a un paysan d'Auvergne, Pierre Philis que Pierre Teilhard de Chardin a qualifié de « fossil hunter » dans une lettre adressée au Professeur Marcellin Boule en 1921, quand celui-ci l'a mandaté pour le rencontrer. P. Philis, né en 1880 dans le hameau de Senèze, commune de Domeyrat en Haute-Loire, a extrait du sous-sol de ses terres, mais aussi d'autres sites un peu partout en France, d'innombrables mammifères fossiles qui font aujourd'hui la richesse de ces musées et autres institutions. C'est probablement en voyant deux savants de Paris (M. Boule et A. Gaudry), accompagnés de notables de la région, venir en 1892 déterrer d'énormes ossements d'un mammouth dans un champ de son village qu'il a dû se passionner pour la recherche d'animaux fossiles. Dès le début des années 1900, il consacre tout son temps libre à la recherche de fossiles dans ses champs à Senèze et propose de vendre le fruit de ses récoltes à des paléontologues de divers pays d'Europe. Dès lors commence une correspondance fournie entre Philis et ses interlocuteurs, en particulier les paléontologues les plus connus de la première moitié du siècle: M. Boule et P. Teilhard de Chardin à Paris; C. Depéret, C. Gaillard, F. Roman et L. Mayet à Lyon; H. G. Stehlin, S. Schaub et H. Helbing à Bâle, pour ne citer que les plus célèbres. Durant 35 ans, de 1907 jusqu'à sa mort en 1942, P. Philis a entretenu une relation riche, qui va bien au-delà de simples rapports entre collecteur et acheteurs. Nous avons eu accès à 1300 lettres et cartes postales et à une quarantaine de documents de nature diverse, totalement inédits, conservés dans des archives familiales ou institutionnelles. Les collections du Muséum de Paris, du Musée des Confluences et de l'Université Claude Bernard à Lyon, et du Naturhistoriche Museum à Bâle, conservent plusieurs milliers de spécimens de mammifères fossiles récoltés par P. Philis à Senèze, mais aussi de nombreux autres gisements des départements de la Haute-Loire, du Puy-de Dôme, du Gard et du Vaucluse. Ces collections comportent de nombreux squelettes complets, dont certains sont toujours présentés dans les salles d'exposition permanente de ces musées. Pierre Philis a aussi loué ses services et son savoir de fouille","PeriodicalId":55111,"journal":{"name":"Geodiversitas","volume":"44 1","pages":"321 - 383"},"PeriodicalIF":1.8,"publicationDate":"2022-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49026556","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Skeleton of Early Miocene Bathyergoides neotertiarius Stromer, 1923 (Rodentia, Mammalia) from Namibia: behavioural implication","authors":"Laura Bento Da Costa, B. Senut","doi":"10.5252/geodiversitas2022v44a10","DOIUrl":"https://doi.org/10.5252/geodiversitas2022v44a10","url":null,"abstract":"ABSTRACT Essentially known from dental remains, the species Bathyergoides neotertiarius Stromer, 1923 (Bathyergidae, Rodentia) is widely recorded in Lower Miocene sites, notably in the localities of Elisabethfeld, Grillental and Langental (Namib Desert, Namibia). On the basis of dental morphology, this species belongs to the Bathyergidae, an extant family represented by the mole rats, which developed a fossorial, predominantly subterranean lifestyle. The discovery of a skeleton in connexion at the locality of GT Carrière (Grillental) permits description for the first time of the postcranials of Bathyergoides neotertiarius. Comparisons with extant rodent species suggest a similar behaviour to the Miocene ones, showing burrowing adaptations using principally the skull/mandible/incisor complex, evidenced by an accentuated robustness of these structures. The results of the postcranial analysis confirm the previous hypothesis, showing a robust anterior limb, probably used for the extraction of material during digging. However, a difference is seen in the robustness of the hind limb, being gracile in GT 50'06, but showing a prominent m. popliteus process, which suggests an important stabilization of the knee joint and an internal rotation of the lower limb allowing postural control in the burrows. The presence of a long tail distinguishes the Lower Miocene species from the extant subterranean rodents which exhibit short tails and recalls the morphology seen in modern semi-fossorial scratch-diggers such as Cricetomys gambianus Waterhouse, 1840. Thus, the specimen GT 50'06 shows clear fossorial adaptations, with a morphology close to the chisel-tooth diggers but exhibiting characteristics useful for a scratch-digging strategy.","PeriodicalId":55111,"journal":{"name":"Geodiversitas","volume":"44 1","pages":"291 - 322"},"PeriodicalIF":1.8,"publicationDate":"2022-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47969936","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A synthesis of the evolutionary history of erymoid lobsters (Crustacea, Decapoda, Erymoidea)","authors":"J. Devillez, S. Charbonnier","doi":"10.5252/geodiversitas2022v44a9","DOIUrl":"https://doi.org/10.5252/geodiversitas2022v44a9","url":null,"abstract":"ABSTRACT A synthesis of our current knowledge of erymoid lobsters is presented. The superfamily Erymoidea includes two families, Erymidae Van Straelen, 1925 and Enoploclytiidae Devillez, Charbonnier & Barriel, 2019, together encompassing 81 species within six genera. Our examination of the palaeobiodiversity of this group and its evolution has revealed some variations through the Mesozoic with three important peaks, at the boundaries of: 1) Lower-Middle Jurassic; 2) Middle-Upper Jurassic; and 3) Lower-Upper Cretaceous. Whereas the origin of the first peak remains poorly known, the two others coincide with major modifications of the environment: the development of the European Jurassic carbonate platforms and the development of the European Chalk Sea and the partial flooding of North America during the mid- and Late Cretaceous. In addition to a notable peak of diversity, the Cretaceous is an important time interval in the evolutionary history of erymoids because the Early Cretaceous represented a long period of relatively low diversity and during the Late Cretaceous a strong decline of erymoid faunas is observed in Europe. However, the erymoids had already attained a worldwide distribution during the Early Cretaceous with occurrences in all oceans of the time. The analysis of the palaeobiogeographic distribution of these lobsters suggests the presence of important migratory paths, which probably favoured their spread and faunal exchanges between different areas across the globe.","PeriodicalId":55111,"journal":{"name":"Geodiversitas","volume":"44 1","pages":"265 - 289"},"PeriodicalIF":1.8,"publicationDate":"2022-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45807070","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}