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Echinoidea source details

Smith, A.B. 2013. Geological history of bathyal echinoid faunas, with a new genus from the late Cretaceous of Italy. Geological Magazine, 150/1, 177-182.
168247
10.1017/s0016756812000738 [view]
Smith, A. B.
2012
Geological history of bathyal echinoid faunas, with a new genus from the late Cretaceous of Italy
Geological Magazine
150(01), 177-182
Publication
Available for editors  PDF available
The Scaglia Rossa of central and northern Italy yields a late Cretaceous bathyal echinoid fauna. Comparison with Jurassic and Cenozoic bathyal faunas highlights that (i) there have been at least three phases of colonization of bathyal settings from the continental shelves, with successive faunas replacing the earlier; and (ii) bathyal echinoid faunas encompass an increasing range of feeding strategies and greater diversity of taxa through time, paralleling increasing nutrification of the oceans. A new Santonian deep-sea spatangoid, Bathyovulaster disjunctus gen. et sp. nov., is described from sediments deposited at > 1500 m water depth at Gubbio, Umbria–Marche region, Italy.
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Date
action
by
2013-07-01 08:46:26Z
created
2013-08-20 06:10:03Z
changed

Bathyovulaster Smith, 2013 † (original description)
Bathyovulaster disjunctus Smith, 2013 † (original description)
Holotype BM NHM EE112345, verbatimGeounit River cliff besides ..., identified as Bathyovulaster disjunctus Smith, 2013
 Diagnosis

Ovulasterid spatangoid lacking an anterior sulcus; apical disc etmophract and ambulacra apetaloid. Labral plate ... [details]

 Diagnosis

Test tumid with faint anterior sulcus. Apetaloid, with aboal ambulacral plates large and polygonal; two to each ... [details]

 Etymology

Named in reference to its closest relative and its deep-water provenance. [details]

 Etymology

Species name refers to the disjunct nature of the plastron. [details]

 Fossil range

Santonian-lower Campanian [details]

 Stratigraphy

Scaglia Formation [details]

 Type locality

River cliff besides the restaurant in Botticcione Gorge, Gubbio, Umbrian Apennines, Italy (43° 21'N, 12° 24' ... [details]


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