The origin of tetraradial symmetry in cnidarians

J Dzik, A Baliński, Y Sun - Lethaia, 2017 - idunn.no
Serially arranged sets of eight septa‐like structures occur in the basal part of phosphatic
tubes of Sphenothallus from the early Ordovician (early Floian) Fenxiang Formation in Hubei …

Evidence of photosymbiosis in Palaeozoic tabulate corals

MK Zapalski - Proceedings of the Royal Society B …, 2014 - royalsocietypublishing.org
Coral reefs form the most diverse of all marine ecosystems on the Earth. Corals are among
their main components and owe their bioconstructing abilities to a symbiosis with algae …

[PDF][PDF] New biostratigraphic and chemostratigraphic data from the Chicotte Formation (Llandovery, Anticosti Island, Laurentia) compared with the Viki core (Estonia …

A Munnecke, P Männik - Estonian Journal of Earth Sciences, 2009 - files.geocollections.info
Due to the lack of biostratigraphically useful graptolites in the crinoidal and reefal Chicotte
Formation on Anticosti Island (Québec, Canada), the precise chronostratigraphic position of …

Heliolitid corals and their competitors: a case study from the Wellin patch reefs, Middle Devonian, Belgium

JJ Król, J Denayer, P Wolniewicz, MK Zapalski - Lethaia, 2021 - idunn.no
Wellin patch reefs are small Upper Eifelian build? ups within the fine? grained argillaceous
limestone of the Hanonet Formation. Whereas the reefs themselves are not well exposed …

British Silurian stromatoporoids. Faunas, palaeobiology, and palaeogeographical significance

S Kershaw, A Christine, D Silva… - Monographs of the …, 2021 - Taylor & Francis
Recommended reference to this publication: Kershaw, S., Da Silva, A.-C. & Sendino, C.
2021. British Silurian stromatoporoids. Fauna, palaeobiology, and palaeogeographical …

Reconstructing a Carboniferous inferred coral–alcyonarian association using a biomineralogical approach

I Coronado, E Fernández‐Martínez, S Rodríguez… - …, 2015 - Wiley Online Library
The taxonomic assignation and ecological implications of the genus Syringoalcyon Termier
& Termier, 1945 have been a palaeontological problem for a long time. Carboniferous …

Alcyonacea awakens: Palaeobiology and palaeoecology of Palaeozoic octocorals known from their sclerites

E Fernández‐Martínez, I Coronado… - Geological …, 2019 - Wiley Online Library
Most Alcyonacea (subclass Octocorallia) have skeletons made up of small calcareous
pieces called sclerites that are difficult to both preserve and recognize, which explains the …

Fossilized polyp remains in Silurian Heliolites (Anthozoa, Tabulata) from Nunavut, Arctic Canada

OA Dixon - Lethaia, 2010 - idunn.no
Calices within a substantially silicified corallum of Heliolites garnieri, from the lower part of
the Barlow Inlet Formation (Ludlow) on south-western Devon Island, contain what appear to …

Self-organization and emergent individuality of favositid corals adapted to live on soft substrates

A Seilacher, RDK Thomas - Lethaia, 2012 - idunn.no
Secondary soft-bottom dwellers share the problem that their ancestors, attached to hard
substrates, had lost their mobility. On soft substrates, only a limited number of alternative …

Remarks on the classification system of the Heliolitida

NK Ospanova - Palaeoworld, 2010 - Elsevier
The concept of the sum of common features has been used in order to compare the
Heliolitida with the Tabulata and Rugosa and determine the position of Heliolitida in the …