Polymastiidae Gray 1867
Family Polymastiidae Gray, 1867a Some peculiar, club-shaped spicules have been found in the studied material that may be assigned to the family Polymastiidae. Some of them have well developed pointed ends and strongly sculptured, club-shaped heads (Figs. 10 K–M). The others have small, weakly define...
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ftzenodo:oai:zenodo.org:6108563 2024-09-15T17:43:36+00:00 Polymastiidae Gray 1867 Łukowiak, Magdalena 2015-12-31 https://doi.org/10.5281/zenodo.6108563 http://treatment.plazi.org/id/2125D91F1B3729627ED9C728F151FF5C unknown Zenodo https://doi.org/10.11646/zootaxa.3917.1.1 http://zenodo.org/record/287785 http://publication.plazi.org/id/DD1CA1671B20297B7E4EC039F41BFF89 https://sibils.text-analytics.ch/search/collections/plazi/2125D91F1B3729627ED9C728F151FF5C https://www.gbif.org/species/127671497 https://www.checklistbank.org/dataset/36729/taxon/2125D91F1B3729627ED9C728F151FF5C.taxon https://doi.org/10.5281/zenodo.287795 https://doi.org/10.5281/zenodo.287797 http://zoobank.org/D8CB263D-645B-46CE-B797-461B6A86A98A https://zenodo.org/communities/biosyslit https://doi.org/10.5281/zenodo.6108562 https://doi.org/10.5281/zenodo.6108563 oai:zenodo.org:6108563 http://treatment.plazi.org/id/2125D91F1B3729627ED9C728F151FF5C info:eu-repo/semantics/openAccess Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode Late Eocene siliceous sponge fauna of southern Australia: reconstruction based on loose spicules record, pp. 1-65 in Zootaxa, 3917(1), 24-25, (2015-12-31) Biodiversity Taxonomy Animalia Porifera Demospongiae Hadromerida Polymastiidae info:eu-repo/semantics/other 2015 ftzenodo https://doi.org/10.5281/zenodo.610856310.11646/zootaxa.3917.1.110.5281/zenodo.28779510.5281/zenodo.28779710.5281/zenodo.6108562 2024-07-26T13:01:56Z Family Polymastiidae Gray, 1867a Some peculiar, club-shaped spicules have been found in the studied material that may be assigned to the family Polymastiidae. Some of them have well developed pointed ends and strongly sculptured, club-shaped heads (Figs. 10 K–M). The others have small, weakly defined pointed ends and smooth, slightly club-shaped heads (Figs. 10 N, O). These club-shaped spicules strongly resemble those of Recent polymastiid Sphaerotylus Topsent, 1898. The variability of the studied spicules may be intraspecific, or they may belong to at least two different species. Among seven currently known species of Sphaerotylus, the spicules with sculptured heads (Figs. 10 K–M) occur in Sphaerotylus vanhoeffeni Hentschel, 1914 (described as S. capitatus compare with Hentschel 1914, fig. 5.5/ Fig. 12 C). This sponge is known from the Antarctic Ocean (Hentschel 1914) and it is also recorded from the Ross Sea, as well as from the coasts of Norway and Canada (as synonym S. capitatus van Soest et al. 2013). Another species having similar spicules is Sphaerotylus exospinosus Lévi, 1993 which today inhabits New Caledonia, but its spicules possess more strongly sculptured heads (Lévi 1993, fig. 6C). Whereas the spicules with smooth clubshaped heads (Figs. 10 N, O) belong undoubtedly to Sphaerotylus sp., their assignment to a particular Recent species is difficult. Nevertheless, the presence of at least two different species of Sphaerotylus is here postulated. Spicules that are similar in morphology had been described from the Jurassic of the Alps by Reif (1967; but without a precise attribution), however they have smooth heads and rounded tips (compare with Reif 1967, pl. 12, fig. 1). There are very few microscleres found in the studied material (except ovoid selenasters and sterrasters which are intermediate in size, between macro- and microscleres). One of them—very characteristic spiraster microsclere (about 50 µm long)—may belong to hadromerid family Spirastrellidae or Clionaidae (Fig. 10 Q). Unfortunately, ... Other/Unknown Material Antarc* Antarctic Antarctic Ocean Ross Sea Zenodo |
institution |
Open Polar |
collection |
Zenodo |
op_collection_id |
ftzenodo |
language |
unknown |
topic |
Biodiversity Taxonomy Animalia Porifera Demospongiae Hadromerida Polymastiidae |
spellingShingle |
Biodiversity Taxonomy Animalia Porifera Demospongiae Hadromerida Polymastiidae Łukowiak, Magdalena Polymastiidae Gray 1867 |
topic_facet |
Biodiversity Taxonomy Animalia Porifera Demospongiae Hadromerida Polymastiidae |
description |
Family Polymastiidae Gray, 1867a Some peculiar, club-shaped spicules have been found in the studied material that may be assigned to the family Polymastiidae. Some of them have well developed pointed ends and strongly sculptured, club-shaped heads (Figs. 10 K–M). The others have small, weakly defined pointed ends and smooth, slightly club-shaped heads (Figs. 10 N, O). These club-shaped spicules strongly resemble those of Recent polymastiid Sphaerotylus Topsent, 1898. The variability of the studied spicules may be intraspecific, or they may belong to at least two different species. Among seven currently known species of Sphaerotylus, the spicules with sculptured heads (Figs. 10 K–M) occur in Sphaerotylus vanhoeffeni Hentschel, 1914 (described as S. capitatus compare with Hentschel 1914, fig. 5.5/ Fig. 12 C). This sponge is known from the Antarctic Ocean (Hentschel 1914) and it is also recorded from the Ross Sea, as well as from the coasts of Norway and Canada (as synonym S. capitatus van Soest et al. 2013). Another species having similar spicules is Sphaerotylus exospinosus Lévi, 1993 which today inhabits New Caledonia, but its spicules possess more strongly sculptured heads (Lévi 1993, fig. 6C). Whereas the spicules with smooth clubshaped heads (Figs. 10 N, O) belong undoubtedly to Sphaerotylus sp., their assignment to a particular Recent species is difficult. Nevertheless, the presence of at least two different species of Sphaerotylus is here postulated. Spicules that are similar in morphology had been described from the Jurassic of the Alps by Reif (1967; but without a precise attribution), however they have smooth heads and rounded tips (compare with Reif 1967, pl. 12, fig. 1). There are very few microscleres found in the studied material (except ovoid selenasters and sterrasters which are intermediate in size, between macro- and microscleres). One of them—very characteristic spiraster microsclere (about 50 µm long)—may belong to hadromerid family Spirastrellidae or Clionaidae (Fig. 10 Q). Unfortunately, ... |
format |
Other/Unknown Material |
author |
Łukowiak, Magdalena |
author_facet |
Łukowiak, Magdalena |
author_sort |
Łukowiak, Magdalena |
title |
Polymastiidae Gray 1867 |
title_short |
Polymastiidae Gray 1867 |
title_full |
Polymastiidae Gray 1867 |
title_fullStr |
Polymastiidae Gray 1867 |
title_full_unstemmed |
Polymastiidae Gray 1867 |
title_sort |
polymastiidae gray 1867 |
publisher |
Zenodo |
publishDate |
2015 |
url |
https://doi.org/10.5281/zenodo.6108563 http://treatment.plazi.org/id/2125D91F1B3729627ED9C728F151FF5C |
genre |
Antarc* Antarctic Antarctic Ocean Ross Sea |
genre_facet |
Antarc* Antarctic Antarctic Ocean Ross Sea |
op_source |
Late Eocene siliceous sponge fauna of southern Australia: reconstruction based on loose spicules record, pp. 1-65 in Zootaxa, 3917(1), 24-25, (2015-12-31) |
op_relation |
https://doi.org/10.11646/zootaxa.3917.1.1 http://zenodo.org/record/287785 http://publication.plazi.org/id/DD1CA1671B20297B7E4EC039F41BFF89 https://sibils.text-analytics.ch/search/collections/plazi/2125D91F1B3729627ED9C728F151FF5C https://www.gbif.org/species/127671497 https://www.checklistbank.org/dataset/36729/taxon/2125D91F1B3729627ED9C728F151FF5C.taxon https://doi.org/10.5281/zenodo.287795 https://doi.org/10.5281/zenodo.287797 http://zoobank.org/D8CB263D-645B-46CE-B797-461B6A86A98A https://zenodo.org/communities/biosyslit https://doi.org/10.5281/zenodo.6108562 https://doi.org/10.5281/zenodo.6108563 oai:zenodo.org:6108563 http://treatment.plazi.org/id/2125D91F1B3729627ED9C728F151FF5C |
op_rights |
info:eu-repo/semantics/openAccess Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode |
op_doi |
https://doi.org/10.5281/zenodo.610856310.11646/zootaxa.3917.1.110.5281/zenodo.28779510.5281/zenodo.28779710.5281/zenodo.6108562 |
_version_ |
1810490642143379456 |