G. Bianucci, Walter Sielfeld, Nicole Olguin, Guillermo Guzmán
. 2023. A new diminutive fossil ziphiid from the deep-sea floor off northern Chile and some remarks on the body size evolution and palaeobiogeography of the beaked whales. Acta Palaeontologica Polonica 68 (X): xxx–xxx. The evolutionary history of the beaked whales (Ziphiidae), odontocetes nowadays adapted to deep diving, is well known thanks to a significant fossil record mainly from the deep ocean floors. A partial cranium of a ziphiid recovered from Plio-Pleistocene deep sea deposits (about 1000 m) off the port of Pisagua, northern Chile, during fishing activity is here described and referred to the new species Ihlengesi changoensis . Ihlengesi changoensis differs from the type species Ihlengesi saldanhae , from the sea floor off South Africa, by having a more elongated premaxillary sac fossa and consequently a more anteriorly located premaxillary foramen; dorsal margin of each premaxillary crest sloping markedly ventrolaterally and generating an acute dorsal profile of the vertex in anterior view; less anterolateral extension of the right nasal forming part of the premaxillary crest; lateral margins of the nasals not anteriorly diverging but weakly convex; nasofrontal suture anteriorly pointed. The phylogeny supports a sister-taxon relationship between I. changoensis and I. saldanhae, both members of the crown ziphiids Hyperoodontinae. Ihlengesi changoensis shares with I. saldanhae and other fossil ziphiids a small body size (estimated length 3.5 m) supporting the hypothesis that in the past small beaked whales (<4 m) were more common than today. Such recent shift of the ziphiids towards a larger size could be the result of a progressive change of diet from fish to cephalopods, to the competition with the delphinids
{"title":"A new diminutive fossil ziphiid from the deep-sea floor off northern Chile and some remarks on the body size evolution and palaeobiogeography of the beaked whales","authors":"G. Bianucci, Walter Sielfeld, Nicole Olguin, Guillermo Guzmán","doi":"10.4202/app.01076.2023","DOIUrl":"https://doi.org/10.4202/app.01076.2023","url":null,"abstract":". 2023. A new diminutive fossil ziphiid from the deep-sea floor off northern Chile and some remarks on the body size evolution and palaeobiogeography of the beaked whales. Acta Palaeontologica Polonica 68 (X): xxx–xxx. The evolutionary history of the beaked whales (Ziphiidae), odontocetes nowadays adapted to deep diving, is well known thanks to a significant fossil record mainly from the deep ocean floors. A partial cranium of a ziphiid recovered from Plio-Pleistocene deep sea deposits (about 1000 m) off the port of Pisagua, northern Chile, during fishing activity is here described and referred to the new species Ihlengesi changoensis . Ihlengesi changoensis differs from the type species Ihlengesi saldanhae , from the sea floor off South Africa, by having a more elongated premaxillary sac fossa and consequently a more anteriorly located premaxillary foramen; dorsal margin of each premaxillary crest sloping markedly ventrolaterally and generating an acute dorsal profile of the vertex in anterior view; less anterolateral extension of the right nasal forming part of the premaxillary crest; lateral margins of the nasals not anteriorly diverging but weakly convex; nasofrontal suture anteriorly pointed. The phylogeny supports a sister-taxon relationship between I. changoensis and I. saldanhae, both members of the crown ziphiids Hyperoodontinae. Ihlengesi changoensis shares with I. saldanhae and other fossil ziphiids a small body size (estimated length 3.5 m) supporting the hypothesis that in the past small beaked whales (<4 m) were more common than today. Such recent shift of the ziphiids towards a larger size could be the result of a progressive change of diet from fish to cephalopods, to the competition with the delphinids","PeriodicalId":50887,"journal":{"name":"Acta Palaeontologica Polonica","volume":"1 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70481054","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}
Andrej Čerňanský, Juan Daza, Rodolphe Tabuce, Elizabeth Saxton, Dominique Vidalenc
.
{"title":"An early Eocene pan-gekkotan from France could represent an extra squamate group that survived the K-Pg extinction","authors":"Andrej Čerňanský, Juan Daza, Rodolphe Tabuce, Elizabeth Saxton, Dominique Vidalenc","doi":"10.4202/app.01083.2023","DOIUrl":"https://doi.org/10.4202/app.01083.2023","url":null,"abstract":".","PeriodicalId":50887,"journal":{"name":"Acta Palaeontologica Polonica","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135660271","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":"Chaetognath grasping spines from the Upper Famennian (Devonian) of Poland: their construction and geochemistry","authors":"H. Wierzbowski, B. Błażejowski","doi":"10.4202/app.01012.2022","DOIUrl":"https://doi.org/10.4202/app.01012.2022","url":null,"abstract":"","PeriodicalId":50887,"journal":{"name":"Acta Palaeontologica Polonica","volume":"1 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70480476","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}
B. Samant, R. Pronzato, D. Mohabey, T. Cubeddu, G. Stocchino, Krutika Jangale, Pranay Thalal, A. Dhobale, R. Manconi
{"title":"The oldest birotule-bearing freshwater sponges (Porifera: Palaeospongillidae) from the Upper Cretaceous-lower Palaeocene Deccan volcanic-associated sediments of India","authors":"B. Samant, R. Pronzato, D. Mohabey, T. Cubeddu, G. Stocchino, Krutika Jangale, Pranay Thalal, A. Dhobale, R. Manconi","doi":"10.4202/app.01040.2022","DOIUrl":"https://doi.org/10.4202/app.01040.2022","url":null,"abstract":"","PeriodicalId":50887,"journal":{"name":"Acta Palaeontologica Polonica","volume":"1 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70480664","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}
T. Saucède, Christopher P. A. Smith, N. Olivier, C. Durlet, P. Guériau, M. Thoury, E. Fara, G. Escarguel, A. Brayard
{"title":"A new Early Triassic crinoid from Nevada questions the origin and palaeobiogeographical history of dadocrinids","authors":"T. Saucède, Christopher P. A. Smith, N. Olivier, C. Durlet, P. Guériau, M. Thoury, E. Fara, G. Escarguel, A. Brayard","doi":"10.4202/app.01042.2022","DOIUrl":"https://doi.org/10.4202/app.01042.2022","url":null,"abstract":"","PeriodicalId":50887,"journal":{"name":"Acta Palaeontologica Polonica","volume":"1 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70480677","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}
Elżbieta M. Teschner, Laurent Garbay, Piotr Janecki, D. Konietzko-Meier
{"title":"Palaeohistology helps reveal taxonomic variability in exceptionally large temnospondyl humeri from the Late Triassic Krasiejów deposit (SW Poland).","authors":"Elżbieta M. Teschner, Laurent Garbay, Piotr Janecki, D. Konietzko-Meier","doi":"10.4202/app.01027.2022","DOIUrl":"https://doi.org/10.4202/app.01027.2022","url":null,"abstract":"","PeriodicalId":50887,"journal":{"name":"Acta Palaeontologica Polonica","volume":"1 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70480812","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}
We describe two new genera of phymaraphiniid lithistid sponges Twertupia gen. nov. and Pickettispongia gen. nov. from the upper Eocene Pallinup Formation of South Western (SW) Australia based on new, rich and very well preserved material. Type material of these two genera, earlier described from poorly preserved material, were originally attributed to Thamnospongia subglabra and Stachyspongia neoclavatela (in case of species of Twertupia ), and to Discoderma tabelliformis (case of species of Pickettispongia ). This is the first record of bodily preserved phymaraphiniid sponges from Eocene rocks, as well as from the southern hemisphere. We discuss extant and fossil representatives of Phymaraphiniidae and their geographical distribution, concluding that the present day occurrences of these sponges are the result of a much larger Mesozoic Tethyan distribution.
本文利用丰富、保存完好的新材料，描述了澳大利亚西南部始新统上Pallinup组的两个新属phymaraphiniid lithisttic海绵Twertupia gen. 11和Pickettispongia gen. 11。这两个属的模式材料，早先从保存较差的材料中描述，最初归因于Thamnospongia subglabra和Stachyspongia neoclavatela(在Twertupia种的情况下)，以及tabelliformis(在Pickettispongia种的情况下)。这是始新世岩石中以及南半球保存完好的海绵体的第一个记录。我们讨论了现存的和化石的海绵动物代表和它们的地理分布，得出结论认为，这些海绵动物今天的出现是中生代特提斯分布的结果。
{"title":"Eocene phymaraphiniid demosponges from South Western Australia: filling the gap","authors":"Andrzej Pisera, M. Bitner, J. Fromont","doi":"10.4202/app.01052.2023","DOIUrl":"https://doi.org/10.4202/app.01052.2023","url":null,"abstract":"We describe two new genera of phymaraphiniid lithistid sponges Twertupia gen. nov. and Pickettispongia gen. nov. from the upper Eocene Pallinup Formation of South Western (SW) Australia based on new, rich and very well preserved material. Type material of these two genera, earlier described from poorly preserved material, were originally attributed to Thamnospongia subglabra and Stachyspongia neoclavatela (in case of species of Twertupia ), and to Discoderma tabelliformis (case of species of Pickettispongia ). This is the first record of bodily preserved phymaraphiniid sponges from Eocene rocks, as well as from the southern hemisphere. We discuss extant and fossil representatives of Phymaraphiniidae and their geographical distribution, concluding that the present day occurrences of these sponges are the result of a much larger Mesozoic Tethyan distribution.","PeriodicalId":50887,"journal":{"name":"Acta Palaeontologica Polonica","volume":"1 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70480841","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}
M. Wisshak, C. Neumann, Giovanni Sanna, K. Nielsen, J. Milán
{"title":"Suspected foraminiferan parasitism on a Late Cretaceous echinoid host recorded by the new attachment trace fossil Solichnus aestheticus","authors":"M. Wisshak, C. Neumann, Giovanni Sanna, K. Nielsen, J. Milán","doi":"10.4202/app.01028.2022","DOIUrl":"https://doi.org/10.4202/app.01028.2022","url":null,"abstract":"","PeriodicalId":50887,"journal":{"name":"Acta Palaeontologica Polonica","volume":"1 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70480860","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":"Further Desmostylian Remains from the late Oligocene of Vancouver Island, British Columbia, Canada","authors":"B. Beatty","doi":"10.4202/app.00990.2022","DOIUrl":"https://doi.org/10.4202/app.00990.2022","url":null,"abstract":"","PeriodicalId":50887,"journal":{"name":"Acta Palaeontologica Polonica","volume":"1 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70480156","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}
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