Systematics and palaeoecology of middle Toarcian Asteroidea (Echinodermata) from the “Seuil du Poitou”, Western France

Villier, Loïc; Kutscher, Manfred; Mah, Christopher L.

doi:10.1016/j.geobios.2003.05.010

Cited by 21 publications

(25 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Bioerosion traces. – The traces of corrosion due to encrusting or foraging organisms are very similar to those mentioned by Villier et al . (2004) on material from the Lower Jurassic clays of western France.…”

supporting

confidence: 84%

Signs of predation in the Middle Jurassic of south‐central Poland: evidence from echinoderm taphonomy

Zatoń

Villier²,

Salamon

2007

LET

Self Cite

View full text Add to dashboard Cite

Distinct faunal aggregates are described from the Middle Jurassic (uppermost Bajocian/ lowermost Bathonian and Middle Bathonian) clay deposits of Cz é stochowa area, southcentral Poland. These aggregates are composed of molluscs (scaphopods, gastropods, bivalves, ammonites and belemnites), articulate brachiopods and echinoderms (asteroids, crinoids and echinoids). A large percentage of the fossils, especially bivalves, are fragmented, but some fossils are complete. Although most of the fossils are crushed and fragmented, they are still identifiable to at least the genus level. Thorough statistical analysis of taphonomic features indicates that the preservation of asteroid marginal plates is distinct from the ossicles derived from the host clays. The high frequency of bite marks and the good state of preservation suggest that the accumulations are the products of predation activities and most probably are the effect of regurgitation. Taking into account the rich and diverse fauna, the predator was a bottom-feeding generalist. Possible predators include palaeospinacid sharks, a tooth of which was collected from the same bedding surface, but not associated with regurgitated remains. Although the bite marks on the asteroid ossicles point to sharks as potential producers of regurgitates, other vertebrates, like durophagous pycnodontiform fish, cannot be excluded. ᮀ Jurassic , Poland , predation , regurgitates , starfish , taphonomy , vertebrates . Micha 1 Zato 3 [mzaton@wnoz.us.edu.pl] and Mariusz A. Salamon [paleo.crinoids@poczta.fm],

show abstract

supporting

confidence: 84%

Signs of predation in the Middle Jurassic of south‐central Poland: evidence from echinoderm taphonomy

Zatoń

Villier²,

Salamon

2007

LET

Self Cite

View full text Add to dashboard Cite

show abstract

“…For example, many authors have emphasized that the seastar fossil record is severely distorted by its poor preservation potential (Blake, 2000(Blake, , 2002, and this is borne out by the gaps and ''ghost lineages'' (e.g., Smith, '94) in their geologic history. Thus, the 25 Myr of the Early Jurassic fossil record contain only 12 species and nine families of asteroids, but Villier and Kutscher ('99) have shown that any reasonable phylogeny requires the presence of at least 23 families at that time, and two orders not yet known from that interval (Villier et al (2004) add three more Early Jurassic families and four more species, but make the same phylogenetic point). Similarly, echinothurioid echinoids are basal to the euechinoid radiation that began in the Early Triassic, but are known from only a handful of fossil occurrences, the oldest in the Middle Jurassic of Switzerland (Smith and Wright,'90).…”

Section: A Null Hypothesis For Broader Sampling Biasesmentioning

confidence: 99%

Evolutionary innovations in the fossil record: the intersection of ecology, development, and macroevolution

Jablonski

2005

J Exp Zool Pt B

100

View full text Add to dashboard Cite

The origins of evolutionary innovations have been intensively studied, but relatively little is known about their large-scale ecological patterns. For post-Paleozoic benthic marine invertebrates, which have the richest and most densely sampled fossil record, order-level taxa tend to appear first in onshore, disturbed habitats, even in groups that are now exclusively deep-water (so that present-day distributions are not reliable indicators of original environments). New results presented here show that the onshore-origination pattern is robust to shifts in taxonomic methods and to new paleontological discoveries, and the few available studies suggest that this pattern can also be seen in terms of excursions in morphospace or the acquisition of derived character states, without reference to taxonomic categories. The environmental pattern at high levels contrasts significantly with the origin of low-level novelties (such as defined genera and families) in crinoids, echinoids, and bryozoans, where first appearances tend to conform to their clade-specific bathymetric diversity gradients. This discordance seems to eliminate potential driving mechanisms that simply scale up within-population genetic or ecological processes. Little is known about the factors that promote the onshore-offshore expansion of orders across the continental shelf, or that drive some clades to abandon ancestral habitats for an exclusively deep-water distribution. The origin of evolutionary innovation must ultimately reside in developmental changes, but the onshore-origination bias could emerge from two different dynamics: the pattern could be primarily genetic and developmental, i.e., innovations truly arise onshore; or primarily ecological, i.e., innovations arise randomly but preferentially survive onshore. Whatever the ultimate driving mechanisms, these macroevolutionary patterns show that theories of large-scale evolutionary novelty must include an ecological dimension.

show abstract

“…Astropectenids used to oc cur in abun dance down to a wa ter depth of 50 m (Beddingfield and McClintock, 1993). Ac cord ing to Villier et al (2004), astropectenids are found pre dom i nantly in shal low shelf en viron ments (shoreface). These star fish are well-adapted to soft-bot tom sub strates, be ing detritivores and pred a tors of gastro pods, bi valves and crus ta ceans (Caregnato et al, 2009;Blake and Guensburg, 2016).…”

Section: Palaeoenvironmentmentioning

confidence: 98%

Rosarichnoides sudeticus igen. et isp. nov. and associated fossils from the Coniacian of the North Sudetic Synclinorium (SW Poland)

Chrząstek

Muszer

Solecki

et al. 2018

View full text Add to dashboard Cite

Systematics and palaeoecology of middle Toarcian Asteroidea (Echinodermata) from the “Seuil du Poitou”, Western France

Cited by 21 publications

References 17 publications

Signs of predation in the Middle Jurassic of south‐central Poland: evidence from echinoderm taphonomy

Signs of predation in the Middle Jurassic of south‐central Poland: evidence from echinoderm taphonomy

Evolutionary innovations in the fossil record: the intersection of ecology, development, and macroevolution

Rosarichnoides sudeticus igen. et isp. nov. and associated fossils from the Coniacian of the North Sudetic Synclinorium (SW Poland)

Contact Info

Product

Resources

About