Invertebrate Paleontology

Just out | Life in the arena: infaunal gastropods and the late Phanerozoic expansion of marine ecosystems into sand @ Palaeontology

Just out @ Palaeontology Life in the arena: infaunal gastropods and the late Phanerozoic expansion of marine ecosystems into sand Author(s) Geerat J. Vermeij Abstract: Marine ecosystems have expanded into the infaunal realm below the surface of soft sediments throughout the Phanerozoic eon. During the Palaeozoic era, this expansion largely involved sedentary animals living in permanent resting places. Active sand-burrowing animals colonized the infaunal environment later, but when this happened and

On the News | USA | Scientists Are Putting Tens of Thousands of Sea Fossils Online @ Smithsonian.com

On the News @ Smithsonian.com Title:  Scientists Are Putting Tens of Thousands of Sea Fossils Online Erin Blakemore Excerpt: “Some 100 million years ago, much of what is now North America was underwater. The body of water scientists call the Western Interior Seaway covered a swath of land that stretched over the entire Midwest. But its secrets have been preserved in countless fossils—and now, over 100,000 of these fossils are being digitized.

Just out | A surprisingly derived hydrometrid (Hemiptera, Gerromorpha) from the Crato Formation, Early Cretaceous of Brazil @ Historical Biology

Just out @ Historical Biology A surprisingly derived hydrometrid (Hemiptera, Gerromorpha) from the Crato Formation, Early Cretaceous of Brazil Author(s) Rodrigo V. Pêgas, Maria E. C. Leal   & Jakob Damgaard Abstract: In the present paper, we review the fossil record of the Hydrometridae (Hemiptera, Gerromorpha) and present a new species from the Early Cretaceous Crato Formation of Northeastern Brazil, Christometra paradoxa gen. et sp. nov. This species is based on a new specimen (a female),

Just out | Nautilid nurseries: hatchlings and juveniles of Eutrephoceras dekayi from the lower Maastrichtian (Upper Cretaceous) Pierre Shale of east-central Montana @ Lethaia

Just out @ Lethaia Nautilid nurseries: hatchlings and juveniles of Eutrephoceras dekayi from the lower Maastrichtian (Upper Cretaceous) Pierre Shale of east-central Montana Author(s) Neil H. Landman, James W. Grier, J. Kirk Cochran, Joyce C. Grier, Jack G. Petersen, W. Henry Towbin Abstract: The nautilid Eutrephoceras dekayi (Morton 1834) is relatively abundant in the lower Maastrichtian (Upper Cretaceous) Pierre Shale of east-central Montana. We analysed the morphology, size frequency distribution, and isotope composition of a

Just out | Restudy of the Early Devonian rugose coral Xystriphylloides from South China @ Palaeoworld

Just out @ Palaeoworld Restudy of the Early Devonian rugose coral Xystriphylloides from South China Author(s) Chang-Min Yu Abstract: Early Devonian rugose coral Xystriphylloides in South China is restudied from the perspective of its taxonomic definition, biostratigraphy, paleoecology, and implication for the Yujiang Event. The diagnostic characters of the genus are clarified and its taxonomic position is also revised. In particular the septa of Xystriphylloides are shown to be fibrous rather than trabeculate. Xystriphylloides distinctus Yu n. sp. is

Just out | An enigmatic hawker dragonfly from the Middle Jurassic of China (Odonata, Aeshnoptera) @ PalZ

Just out @ PalZ An enigmatic hawker dragonfly from the Middle Jurassic of China (Odonata, Aeshnoptera) Author(s) Di-ying Huang, André Nel, Chenyang Cai Abstract: The aeshnopteran Propecymatophlebia magnifica gen. et sp. nov. is described from the Middle Jurassic Hiafanggou Formation of Inner Mongolia in China, on the basis of a complete forewing. It confirms the remarkable palaeodiversity of the stem group of the hawker dragonflies in Central Asia in the period between the Middle Jurassic and

Just out | Ammonoids from the late Givetian Taouzites Bed of Ouidane Chebbi (eastern Tafilalt, SE Morocco) @ Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen

Just out @ Neues Jahrbuch für Geologie und Paläontologie – Abhandlungen Ammonoids from the late Givetian Taouzites Bed of Ouidane Chebbi (eastern Tafilalt, SE Morocco) Author(s) Bockwinkel, Jürgen; Becker, Ralph Thomas; Aboussalam, Zhor Sarah Abstract: A marly, nodular limestone bed at Ouidane Chebbi in the eastern Tafilalt (eastern ramp of the Tafilalt Platform, SE Morocco) yielded a rich and diverse ammonoid fauna of the late Givetian Taouzites taouzensis Zone (MD III-D), which falls in the higher

Just out | The genus Gonioclymenia (Ammonoidea; Late Devonian) in Central Europe @ Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen

Just out @ Neues Jahrbuch für Geologie und Paläontologie – Abhandlungen The genus Gonioclymenia (Ammonoidea; Late Devonian) in Central Europe Author(s) Korn, Dieter Abstract: The stratigraphically important Late Devonian ammonoid genus Gonioclymenia is revised based on material from the type regions in the Franconian Forest and the Rhenish Mountains. Based on differences in conch shape, suture line and particularly in sculpture, two Franconian species (G. speciosa, G. subcarinata) and five Rhenish species (G. subcarinata, G. praematura,

Just out | Latest on Echinodermata (dedicated issue) @ Journal of Paleontology

Just out @ Journal of Paleontology Latest on Echinodermata (dedicated issue) List of articles: Progress in echinoderm paleobiology Samuel Zamora, Imran A. Rahman Journal of Paleontology, v. 91, i. 4, p. 579-581, Published on July 2017, First Published on June 16, 2017, doi:10.1017/jpa.2017.20 Testing for homologies in the axial skeleton of primitive echinoderms Christopher R. C. Paul Journal of Paleontology, v. 91, i. 4, p. 582-603, Published on July 2017, First Published on June 16, 2017, doi:10.1017/jpa.2016.151 New insights concerning homology of the

Just out | Ecophenotypic asymmetry in the middle Danian brachiopod Obliquorhynchia flustracea caused by adaptation to attachment on the coral Dendrophyllia candelabrum @ Lethaia

Just out @ Lethaia Ecophenotypic asymmetry in the middle Danian brachiopod Obliquorhynchia flustracea caused by adaptation to attachment on the coral Dendrophyllia candelabrum Author(s) Ane Elise Schrøder, Bodil W. Lauridsen, Finn Surlyk Abstract: The rhynchonellid brachiopod Obliquorhynchia flustracea from the middle Danian (Paleocene) cool-water coral mounds of the Faxe Formation, Denmark, exhibits commissural asymmetry, a rare feature in articulate brachiopods. It has been much discussed whether the underlying reasons for this asymmetry were species specific caused