The stalked crinoid fauna (Echinodermata) of the Molucca and Celebes Seas, Indonesia: taxonomic diversity and observations from remotely operated vehicle imagery

Tunnicliffe, Verena; Roux, Michel; Eléaume, Marc; Schornagel, Dustin

doi:10.1007/s12526-015-0369-x

Cited by 7 publications

(2 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Bathycrinus australocrucis was described at depths from 693 to 838 m off New Zealand. Naumachocrinus hawaiiensis A. H. Clark, 1912 also occurs in the western Pacific, from Japan to Kermadec and from Indonesia to Hawaiian Islands at depths from 516-1440 m (Bourseau et al 1991;Oji and Kitazawa 2008;Tunnicliffe et al 2015). Similar bathymetrical and geographical distribution patterns of the monotypic genera Hirsutocrinus and Naumachocrinus, each with a unique combination of features of taxonomic significance suggest that the western Pacific is an area with a deep history of bathycrinid penetration into the deep-sea.…”

Section: Discussionmentioning

confidence: 99%

<i>Hirsutocrinus duplex</i>, a New Genus and Species of Sea Lilies (Crinoidea, Comatulida, Bathycrinidae) from the Western North Pacific

Миронов

Fujita

2021

Spec.Div.

View full text Add to dashboard Cite

Hirsutocrinus duplex, a new genus and new species of the Bathycrinidae, collected from Okinawa, Japan at a depth of 596-606 m, is described. The main diagnostic characters of the new genus are the presence of side plates in pinnules and of knobby processes on Brs 1-2. Knobby processes on secundibrachials are found for the first time. Monachocrinus A. H. Clark, 1913 shares side plates with Hirsutocrinus. It differs from the new genus in having knobby processes on IBrs 1, parallel ridges on the articular surface of knobby processes, proximal and distal arm pattern a b+c d+e f, saccules, in lacking knobby processes on IBrs 2 and Brs 1-2, pinnule on every second Br, x-shaped tube-feet plates, needle-like spines on external surface of IBrs and Brs. The cover and side plates are similar to each other in Monachocrinus, and quite different in Hirsutocrinus. Hirsutocrinus duplex is the shallowest species in the abyssal family Bathycrinidae usually known from 1100 to 9735 m. Other than H. duplex, only three among 25 nominal bathycrinid species are known from depths less than 1000 m.

show abstract

Section: Discussionmentioning

confidence: 99%

<i>Hirsutocrinus duplex</i>, a New Genus and Species of Sea Lilies (Crinoidea, Comatulida, Bathycrinidae) from the Western North Pacific

Миронов

Fujita

2021

Spec.Div.

View full text Add to dashboard Cite

show abstract

“…Recent oceanographic investigations in bathyal environments conducted during last decades, notably direct observations from submersibles, have confirmed that most of the extant stalked crinoids are not relict forms and that their diversity and abundance are still largely underestimated (see, for example, Veitch et al 2021 andTunnicliffe et al 2016). In the tropical westerm Atlantic, Rhizocrinidae are common only at depths >100 meters, although one species, Democrinus rawsoni (Pourtalès 1874) has been exceptionally reported at a depth of 66 meters (Meyer et al 1978).…”

Section: Palaeobathymetry and Palaeogeographymentioning

confidence: 99%

A diverse crinoid fauna (Echinodermata, Crinoidea) from the Lower Eocene of the Gulf of Languedoc (Corbières, Aude, southern France)

Roux

Martinez²,

Vizcaı̈no³

2021

Zootaxa

Self Cite

449

View full text Add to dashboard Cite

Detailed studies of the middle Ilerdian (lower Ypresian) blue marls of the Gulf of Languedoc (Corbières, Aude, France), belonging to the north Pyrenean foreland basin, have revealed a more abundant and diverse crinoid fauna than previously documented from the Lower Eocene. Here we describe five species of stalked crinoids in the family Rhizocrinidae (Cherbonniericrinus requiensis n. sp., ?Democrinus elongatus, Globulocrinus amphoraformis n. gen., n. sp., Pseudoconocrinus doncieuxi and P. lavadensis n. sp.), one barnacle-like species in the stalkless family Holopodidae (Holopus plaziati n. sp.) and a single feather star in the family Conometridae (Amphorometra atacica). Several sites have yielded brachials and rhizoids in addition to abundant aboral cups and columnals indicating in situ fossilisation of the dissociated skeletal elements. P. lavadensis n. sp. and ?D. elongatus have been collected only from outcrops located in the upper part of the middle blue marls, while P. doncieuxi predominates, with a wide range of morphological variation, in the lower blue marls. The fossil assemblage at the locality of Réqui near Montlaur differs from the others in the smaller size of most individuals and the presence of H. plaziati n. sp., C. requiensis n. sp., G. amphoraformis n. gen., n. sp., and P. doncieuxi suboblongus n. subsp. This particular association with high juvenile mortality corresponds to an unstable environment with mixed substrates (muddy and rocky). The crinoid fauna of the Corbières appears to be the most diverse of Early Eocene age known to date. With the fauna of the London Clay, a boreal formation of the same age, it shares the presence of the genera Democrinus and Amphorometra in an open-sea environment. A comparison with extant faunas allows the depth of deposition at the Ypresian sites in the Gulf of Languedoc to be estimated between from 100 and 140 meters.

show abstract

New record of the stalked crinoid Saracrinus angulatus (Echinodermata: Crinoidea: Isocrinida) from Andaman Sea, Northern Indian Ocean

et al. 2016

View full text Add to dashboard Cite

The stalked crinoid fauna (Echinodermata) of the Molucca and Celebes Seas, Indonesia: taxonomic diversity and observations from remotely operated vehicle imagery

Cited by 7 publications

References 36 publications

<i>Hirsutocrinus duplex</i>, a New Genus and Species of Sea Lilies (Crinoidea, Comatulida, Bathycrinidae) from the Western North Pacific

<i>Hirsutocrinus duplex</i>, a New Genus and Species of Sea Lilies (Crinoidea, Comatulida, Bathycrinidae) from the Western North Pacific

A diverse crinoid fauna (Echinodermata, Crinoidea) from the Lower Eocene of the Gulf of Languedoc (Corbières, Aude, southern France)

New record of the stalked crinoid Saracrinus angulatus (Echinodermata: Crinoidea: Isocrinida) from Andaman Sea, Northern Indian Ocean

Contact Info

Product

Resources

About