The holotype of Pseudisograptus manubriatus manubriatus (Hall, 1914)—implications for the identification of Pseudisograptus manubriatus subspecies

VandenBerg, A.H.M. & Maletz, J., April 2016. The holotype of Pseudisograptus manubriatus manubriatus (Hall, 1914)—implications for the identification of Pseudisograptus manubriatus subspecies. Alcheringa 40, xxx–xxx. ISSN 0311-5518

The holotype of Pseudisograptus manubriatus manubriatus (Hall, 1914) has been rediscovered in the collections of Museum Victoria and is recognized to belong to Pseudisograptus manubriatus harrisi as described by Cooper & Ni (1986). This taxon becomes a junior synonym of P. m. manubriatus. The selected neotype of Pseudisograptus manubriatus manubriatus (Hall, 1914) can be referred to Pseudisograptus manubriatus texanus Cooper & Ni, 1986. The proximal development in all known relief specimens of Pseudisograptus and their descendants indicates that a symmetrical development of the manubrium must be regarded as the rule, and the interpretation of a strong asymmetry in Pseudisograptus manubriatus texanus is rejected.

Alfons H.M. VandenBerg [avandenberg@museum.vic.gov.au, lanceolatus@hotmail.com], Geology, Museum Victoria, GPO Box 666, Vic 3001, Australia; Jörg Maletz [yorge@zedat.fu-berlin.de], Department of Earth Sciences, FU Berlin, Malteserstrasse 74-100, D-12249 Berlin, Germany.     

Graptolite faunas and monaxonid demosponges of the Cyrtograptus lundgreni event (late Wenlock,Silurian) interval from the Orange district,New South Wales

Muir, L.A. & Botting, J.P., December, 2007. Graptolite faunas and monaxonid demosponges of the Cyrtograptus lundgreni event (late Wenlock, Silurian) interval from the Orange district, New South Wales. Alcheringa 31, 375-395. ISSN 0311-5518.

Three monograptid and five retiolitid graptoloids, and one species of sponge, are described from late Wenlock sections (Cyr. lundgreni and Co. ludensis biozones) at Spring Creek and Wallace Creek, near Orange, New South Wales, Australia. The sponge Janussenia orangense gen. et sp. nov. is the first monaxonid demosponge to be described from the Australian Silurian. An object containing broken Testograptus testis, and interpreted as the faecal pellet of a predator or scavenger on graptoloids, is described.

Lucy A. Muir [l.muir@nhm.ac.uk], Department of Palaeontology, Natural History Museum, Cromwell Road, London SW7 5BD, UK. Joseph P. Botting [joe@asoldasthehills.org], 2C Roslyn Close, Mitcham CR4 3BB, UK. Received 28.4.2006; Revised 10.10.2006.     

New material from the Ordovician of China indicates that Inocaulis is a graptolite

Muir, L.A., Zhang, Y.-D. & Lin, J.-P. 2012. New material from the Ordovician of China indicates that Inocaulis is a graptolite. Alcheringa 37, 558–559. ISSN 0311-5518.

The problematic Early Palaeozoic fossil Inocaulis has been regarded as an alga, a graptolite and a hydroid by different authors. A new specimen from the Ordovician (late Darriwilian) of Guizhou Province (China) shows fusellar banding, confirming that it is a benthic graptolite.

Lucy A Muir [lucy@asoldasthehills.org], Yuan-dong Zhang [ydzhang@nigpas.ac.cn], Jih-Pai Lin [jplin@nigpas.ac.cn] (corresponding author), State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, No. 39 East Beijing Road, Nanjing 210008, PR China. Received 13.12.2012; revised 10.5.2013; accepted 13.5.2013.