Ichnological Insights Into Mitrate Palaeobiology

Rahman, Imran A.; Jefferies, R. P. S.; Südkamp, Wouter H.; Smith, R. D. A.

doi:10.1111/j.1475-4983.2008.00838.x

Cited by 16 publications

(17 citation statements)

References 33 publications

(60 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Traces associated with mitrate body fossils.-Associated with body fossils of the Devonian stylophoran Rhenocystis latipedunculata, Rahman et al (2009) erected the ichnotaxon Vadichnites transversus as horizontal straight to curved traces with low relief protuberances or closely spaced fine ridges transversely oriented across a shallow groove. This new ichnotaxon is argued to demonstrate that the appendage of R. latipedunculata was used in locomotion and that this movement took place appendage-first.…”

Section: Introductionmentioning

confidence: 99%

Echinoderm ichnology: bioturbation, bioerosion and related processes

Belaústegui¹,

Muñiz²,

Nebelsick³

et al. 2017

J. Paleontol.

View full text Add to dashboard Cite

Abstract.-Among invertebrates and both in modern and ancient marine environments, certain echinoderms have been and are some of the most active and widespread bioturbators and bioeroders. Bioturbation and/or bioerosion of regular and irregular echinoids, starfish, brittle stars, sea cucumbers and crinoids are known from modern settings, and some of the resulting traces have their counterparts in the fossil record. By contrast, surficial trails or trackways produced by other modern echinoderms, e.g., sand dollars, exhibit a lower preservation rate and have not yet been identified in the fossil record. In addition, the unique features of the echinoderm skeleton (e.g., composition, rapid growth, multi-element architecture, etc.) may promote the production of related traces produced by the reutilization of echinoderm ossicles (e.g., burrow lining), predation (e.g., borings), or parasitism (e.g., swellings or cysts). Finally, the skeletal robustness of some echinoids may promote their post mortum use as benthic islands for the settlement of hard-substrate dwellers.

show abstract

Section: Introductionmentioning

confidence: 99%

Echinoderm ichnology: bioturbation, bioerosion and related processes

Belaústegui¹,

Muñiz²,

Nebelsick³

et al. 2017

J. Paleontol.

View full text Add to dashboard Cite

show abstract

“…Independent evidence of the movement of anomalocystitid carpoids comes from the Devonian genus Rhenocystis , which has been found preserved at the terminations of its burrows (Sutcliffe et al ., ; Rahman et al ., ). These examples confirm that Rhenocystis moved with the appendage in front.…”

Section: Discussionmentioning

confidence: 97%

“…Rhenocystis lived with the planar surface uppermost (Sutcliffe et al, 2000, fig. 6, p. 7;Rahman et al, 2009). This orientation depended on determining way up of loose slabs using sedimentological criteria.…”

Section: Discussionmentioning

confidence: 99%

Ateleocystites?lansaesp. nov. (Mitrata, Anomalocystitidae) from the Upper Ordovician of South Wales

McDermott¹,

Paul²

2015

Geol. J.

View full text Add to dashboard Cite

Ateleocystites? lansae sp. nov. is characterized by an elongate body with short spines that taper relatively rapidly. It has granular plate ornament adorally in addition to cuesta‐like ridges. Ateleocystites? lansae occurs commonly in a 5‐cm‐thick fine‐ to medium‐grained sandstone bed, which was rapidly emplaced and transported fossils from shallower water, within the Upper Ordovician (Katian), Slade and Redhill Beds along the A477 road and in the new quarry above The Old Mill Café, Tenby Road (now C3236), west of Llanddowror, Carmarthenshire. Other specimens are known from Sholeshook, Pembrokeshire. On the convex surface, the Welsh species differs from A. guttenbergensis Kolata and Jollie in having a larger central ‘placocystitid’ plate (C17) in contact with six, not five other plates. In addition, the marginal plates are scarcely visible on the convex surface. Plating on the planar surface agrees well with that of both A. guttenbergensis and the type species, A. huxleyi Billings. The presence of articulated appendages and spines and the lack of sediment fill in the bodies suggest that the new specimens were alive when buried. Ateleocystites? lansae probably lived largely buried in the sediment with the convex surface below and moved with the appendage in front. Copyright © 2015 John Wiley & Sons, Ltd.

show abstract

“…Asteroids, crinoids, and ophiuroids are especially common (Schmidt 1934;Lehmann 1957;Kutscher 1976;Bartels et al 1998;Glass and Blake 2004;Glass 2006), but well-preserved blastoids (Pentremitidea medusa and Schizotremites osoleae), echinoids (Porechinus prosus and Rhenechinus hopstaetteri), edrioasteroids [Pyrgocystis (Rhenopyrgus) coronaeformis], holothurians (Palaeocucumaria hunsrueckiana), rhombiferans (Regulaecystis pleurocystoides), and stylophorans (''Mitrocystites'' styloideus and Rhenocystis latipedunculata) have also been recovered from the quarry (Jaekel 1895;Dehm 1932Dehm , 1934Dehm , 1961Lehmann 1949Lehmann , 1958Rievers 1961;Bartels et al 1998;Ruta and Bartels 1998). In a few very rare cases, direct associations between ichnofossils and their echinoderm tracemakers have even been reported (Sutcliffe et al 2000;Rahman et al 2009). Unusually for echinoderms, fossils are often preserved articulated and relatively complete; rapid burial in sediment prevented the disarticulation of skeletal plates, while pyritization strengthened the skeleton and, in some cases, preserved soft tissues Sutcliffe et al 1999;Glass and Blake 2004).…”

Section: Geological Settingmentioning

confidence: 96%

Dehmicystis globulus, an enigmatic solute (Echinodermata) from the Lower Devonian Hunsrück Slate, Germany

Rahman

Lintz

2011

Paläontol. Z.

Self Cite

View full text Add to dashboard Cite

Dehmicystis globulus is a very poorly known Lower Devonian solute echinoderm from the Hunsrück Slate of Germany. To date, only the holotype has been formally described; however, it is incomplete and does not preserve important characters of the group. We report three new individuals on the same slab of slate, one of which is almost complete. This material informs a full systematic redescription of the genus. The orientation and mode of life of solutes are contentious; our new morphofunctional data strongly suggest that Dehmicystis was oriented with the ambulacrum on the upper surface. Such a position implies a suspension feeding mode of life, with food particles captured from the current using the ambulacrum. The stele may have enabled limited movement on the sea floor but was principally responsible for support, anchorage, and (facultative) attachment.

show abstract

Ichnological Insights Into Mitrate Palaeobiology

Cited by 16 publications

References 33 publications

Echinoderm ichnology: bioturbation, bioerosion and related processes

Echinoderm ichnology: bioturbation, bioerosion and related processes

Ateleocystites?lansaesp. nov. (Mitrata, Anomalocystitidae) from the Upper Ordovician of South Wales

Dehmicystis globulus, an enigmatic solute (Echinodermata) from the Lower Devonian Hunsrück Slate, Germany

Contact Info

Product

Resources

About