13 10 264 https://wserv3.esc.cam.ac.uk/p1acollections/files/original/569e8ab0a7be2b62648a8dfaf22255ae.png 57a301a5bba9f5cba80d946f499dd07c https://wserv3.esc.cam.ac.uk/p1acollections/files/original/dd01f5a7b0a3c29c1de5027f9f168901.png 078a8101158e41afcf7a91b737bc432c Physical Object An inanimate, three-dimensional object or substance. Note that digital representations of, or surrogates for, these objects should use Moving Image, Still Image, Text or one of the other types. Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource <h2><strong>TF1124<br /></strong></h2> <h2>Rugose coral (manmade cast)</h2> Description An account of the resource <div class="element"> <h3>Stratigraphic Range</h3> <div class="element-text">Ordovician to Permian</div> </div> <div class="element"> <h3>Taxonomy</h3> <div class="element-text">Phylum: Cnidaria<br />Class: Anthozoa<br />Order: Rugosa</div> </div> <div class="element"> <h3>Distinctive Features</h3> <div class="element-text">Septa<br />Growth lines<br />'Horn' shape</div> </div> <div class="element"> <h3>Preservation</h3> <div class="element-text">Manmade cast</div> </div> solitary https://wserv3.esc.cam.ac.uk/p1acollections/files/original/bce5f57e733ebc20d504779fc0c83dc7.png 2fef2079b12ffd61a71a4621f0c26ec1 https://wserv3.esc.cam.ac.uk/p1acollections/files/original/c5309bf0848526186f90f3f765be5b58.png 9bdf17123aaada968cbe3611c3d666ff Physical Object An inanimate, three-dimensional object or substance. Note that digital representations of, or surrogates for, these objects should use Moving Image, Still Image, Text or one of the other types. Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource <h2><strong>TF0801<br /></strong></h2> <h2>Crinoid stem fragment</h2> Description An account of the resource <div class="element"> <h3>Stratigraphic Range</h3> <div class="element-text">Crinoids: Ordovician to recent</div> </div> <div class="element"> <h3>Taxonomy</h3> <div class="element-text">Phylum: Echinodermata<br />Class: Crinoidea</div> </div> <div class="element"> <h3>Distinctive Features</h3> <div class="element-text">Ossicles (fused)</div> </div> <div class="element"> <h3>Preservation</h3> <div class="element-text">Internal mould of stereome by haematite, slightly compressed</div> </div> https://wserv3.esc.cam.ac.uk/p1acollections/files/original/a86244657112abf9fff0ad16d600ab32.png cf84079023760fc19fcd93261676b241 https://wserv3.esc.cam.ac.uk/p1acollections/files/original/3e324455928625e2119e321770a974c1.png 3154055cbc308cdd647e9a26ac407ebd Physical Object An inanimate, three-dimensional object or substance. Note that digital representations of, or surrogates for, these objects should use Moving Image, Still Image, Text or one of the other types. Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource <h2><strong>TF0802<br /></strong></h2> <h2>Actinocritus (stem segments)</h2> Subject The topic of the resource <div class="element-set"> <div class="element"> <div class="element-text"> <h3>Location</h3> Carboniferous limestone, Whatley</div> </div> </div> <div class="element-set"> <div class="element"></div> </div> Description An account of the resource <div class="element"> <h3>Stratigraphic Range</h3> <div class="element-text">Carboniferous</div> </div> <div class="element"> <h3>Taxonomy</h3> <div class="element-text">Phylum: Echinodermata<br />Class: Crinoidea</div> </div> <div class="element"> <h3>Distinctive Features</h3> <div class="element-text">Ossicles (fused)<br />Stereome</div> </div> <div class="element"> <h3>Preservation</h3> <div class="element-text">Mineral replacement<br />Sediment infill</div> </div> Calcite https://wserv3.esc.cam.ac.uk/p1acollections/files/original/6b42382a5979d664769186f495949223.png d81fa420ec4c9d2111864bb98de055a9 https://wserv3.esc.cam.ac.uk/p1acollections/files/original/d9d9a60ecc1ede42b76affc35ddbb013.png d5e11f83248017db75a4dfefd40cd7c3 Physical Object An inanimate, three-dimensional object or substance. Note that digital representations of, or surrogates for, these objects should use Moving Image, Still Image, Text or one of the other types. Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource <h2><strong>TF0803<br /></strong></h2> <h2>Encrinus Lilliformis</h2> Subject The topic of the resource <h3>Location</h3> <div class="element-text">Brunswick, Germany</div> Description An account of the resource <div class="element"> <h3>Species</h3> <div class="element-text">Encrinus lilliformis</div> </div> <div class="element"> <h3>Stratigraphic Range</h3> <div class="element-text">Triassic</div> </div> <div class="element"> <h3>Taxonomy</h3> <div class="element-text">Phylum: Echinodermata<br />Class: Crinoidea<br />Order: Encrinida<br />Family: Encrinidae<br />Genus: Encrinus</div> </div> <div class="element"> <h3>Distinctive Features</h3> <div class="element-text">Ossicles (fused)<br />Crown with individual arms<br />Attachment point for calyx</div> </div> <div class="element"> <h3>Preservation</h3> <div class="element-text">Cast (manmade)</div> </div> fused https://wserv3.esc.cam.ac.uk/p1acollections/files/original/0009fbb9cac6e2eed245dd750b96778a.png f6bc841a3f8ddf9c5d31647f48f08814 https://wserv3.esc.cam.ac.uk/p1acollections/files/original/92fd574aa3a154c47bb3bbb59e17e42b.png 61ba37f85a382af2952ebbd7f390ee3a Physical Object An inanimate, three-dimensional object or substance. Note that digital representations of, or surrogates for, these objects should use Moving Image, Still Image, Text or one of the other types. Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource <h2><strong>TF0804<br /></strong></h2> <h2>Apiocrinites</h2> Subject The topic of the resource <h3>Location</h3> <div class="element-text"> <div class="element-set"> <div class="element"> <div class="element-text">Bradford Clay</div> </div> </div> <div class="element-set"> <div class="element"></div> </div> </div> Description An account of the resource <div class="element"> <h3>Stratigraphic Range</h3> <div class="element-text">Jurassic</div> </div> <div class="element"> <h3>Taxonomy</h3> <div class="element-text">Phylum: Echinodermata<br />Class: Crinoidea<br />Order: Millericrinida<br />Genus: Apiocrinites</div> </div> <div class="element"> <h3>Distinctive Features</h3> <div class="element-text">Pentaradial symmetry<br />Calyx<br />Attachment point for 'arms' of the animal</div> </div> <div class="element"> <h3>Preservation</h3> <div class="element-text">Cast (manmade)</div> </div> Calcite pentaradial symmetry https://wserv3.esc.cam.ac.uk/p1acollections/files/original/2332c5c52d7c500ebdfb4e71c3e327c6.png e44fcbb6194a465a50645ee93539df17 https://wserv3.esc.cam.ac.uk/p1acollections/files/original/1662b3fe221b3d8a4aa2e82df3cfead8.png 4004e8b020fff882441c3d1917a10558 Physical Object An inanimate, three-dimensional object or substance. Note that digital representations of, or surrogates for, these objects should use Moving Image, Still Image, Text or one of the other types. Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource <h2><strong>TF0806<br /></strong></h2> <h2>Crinoid (cast)</h2> Description An account of the resource <div class="element"> <h3>Taxonomy</h3> <div class="element-text">Phylum: Echinodermata<br />Class: Crinoidea</div> </div> <div class="element"> <h3>Distinctive Features</h3> <div class="element-text">Stem<br />Calyx<br />Crown<br />Ossicles (fused)</div> </div> <div class="element"> <h3>Preservation</h3> <div class="element-text">Cast (manmade)</div> </div> https://wserv3.esc.cam.ac.uk/p1acollections/files/original/ac8725dd28db57aa5f5e14ea34391956.png 693c2200f318d8d5a71d9a40646d1ad3 https://wserv3.esc.cam.ac.uk/p1acollections/files/original/6d18adbac164fbef9cf72b85e3d678d8.png a1c39cc60700bd22e052d74e18736bfc Physical Object An inanimate, three-dimensional object or substance. Note that digital representations of, or surrogates for, these objects should use Moving Image, Still Image, Text or one of the other types. Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource <h2><strong>TF0901<br /></strong></h2> <h2>Regular echinoid spine</h2> Subject The topic of the resource <h3>Location</h3> <div class="element-text">Coral Rag, Upware, Cambridgeshire</div> Description An account of the resource <div class="element"> <h3>Species</h3> <div class="element-text">Florigemma</div> </div> <div class="element"> <h3>Stratigraphic Range</h3> <div class="element-text">Jurassic</div> </div> <div class="element"> <h3>Taxonomy</h3> <div class="element-text">Phylum: Echinodermata<br />Class: Echinoidea<br />Order: Cidaroida<br />Genus: Cidaris<br /><br /></div> </div> <div class="element"> <h3>Distinctive Features</h3> <div class="element-text">'Club' shaped<br />Thorns</div> </div> <div class="element"> <h3>Preservation</h3> <div class="element-text">Mineral replacement (calcite)<br />Disarticulated from body shell</div> </div> <div class="element"> <h3>Advanced notes</h3> <div class="element-text">This is a spine from a regular echinoid. You can tell this by the shape and thickness of the spine.<br />Irregular echinoids live under the sediment in burrows, using their spines for movement, not for protection, and hence the spines are fine and able to be manipulated.<br />Regular echinoids live epifaunally, and so are a target for predators. These spines are needed to prevent attack of the shell containing the soft parts of the animal, and the 'club' like shape decreases access opportunities for predators. Other regular echinoid spines are long and thin, pointed, offering a more 'offensive defence' than spines such as this one.</div> </div> epifaunal protection https://wserv3.esc.cam.ac.uk/p1acollections/files/original/b21246beff92e745d52987147691643f.png 72ae11871d6a3d4342acb3ec1b370e95 https://wserv3.esc.cam.ac.uk/p1acollections/files/original/75ac7ff10d0a63ded30845e65de7e176.png aca569eebb6edab8d0a15db4d00f2614 Physical Object An inanimate, three-dimensional object or substance. Note that digital representations of, or surrogates for, these objects should use Moving Image, Still Image, Text or one of the other types. Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource <h2><strong>TF0902<br /></strong></h2> <h2>Irregular echinoid</h2> Subject The topic of the resource <h3>Location</h3> <div class="element-text"><span>Coralline Oolite, Upware, Cambridgeshire</span></div> Description An account of the resource <div class="element"> <h3>Species</h3> <div class="element-text">depressus Lestre</div> </div> <div class="element"> <h3>Stratigraphic Range</h3> <div class="element-text">Jurassic</div> </div> <div class="element"> <h3>Taxonomy</h3> <div class="element-text">Phylum: Echinodermata<br />Class: Echinoidea<br />Subclass: Irregularia<br />Order: Holectypoida<br />Genus: Holectypus<br /><br /></div> </div> <div class="element"> <h3>Distinctive Features</h3> <div class="element-text">Bilateral symmetry<br />Five radial ambulacra<br />Spine attachment scars (very small)<br />Peristome and anus out of line</div> </div> <div class="element"> <h3>Preservation</h3> <div class="element-text">Shell mineral replacement<br />Sediment infil<br />Disarticulation of spines</div> </div> <div class="element"> <h3>Advanced notes</h3> <div class="element-text">This is a primitive irregular echinoid which would have had a functional jaw apparatus (not preserved) held within the peristome. The anus has migrated and the symmetry is bilateral, so this echinoid is clearly identifiable as irregular.</div> </div> bilateral movement pentaradial symmetry https://wserv3.esc.cam.ac.uk/p1acollections/files/original/096e8ba3d85cb6710d025c8a47c6b650.png dafdee752e982fb456d58759fe553388 https://wserv3.esc.cam.ac.uk/p1acollections/files/original/9210643b87c961dd79670feb9079babe.png 8753d0aed58123df89e9df5181ddaaa9 Physical Object An inanimate, three-dimensional object or substance. Note that digital representations of, or surrogates for, these objects should use Moving Image, Still Image, Text or one of the other types. Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource <h2><strong>TF0903<br /></strong></h2> <h2>Irregular echinoid</h2> Subject The topic of the resource <h3>Location</h3> <div class="element-text"><span>Upper Chalk, Weston Colville, Cambridgeshire</span></div> Description An account of the resource <div class="element"> <h3>Species</h3> <div class="element-text">Praecursor</div> </div> <div class="element"> <h3>Stratigraphic Range</h3> <div class="element-text">Cretaceous</div> </div> <div class="element"> <h3>Taxonomy</h3> <div class="element-text">Phylum: Echinodermata<br />Class: Echinoidea<br />Subclass: Irregularia<br />Order: Spatangoida<br />Genus: Micraster<br /><br /></div> </div> <div class="element"> <h3>Distinctive Features</h3> <div class="element-text">Bilateral symmetry<br />Five radial ambulacra<br />Peristome (opening for mouth) and periproct (opening for anus) migrated<br />Spine attachment scars</div> </div> <div class="element"> <h3>Preservation</h3> <div class="element-text">Sediment infil<br />Shell mineral replacement<br />Disarticulation of spines</div> </div> <div class="element"> <h3>Advanced notes</h3> <div class="element-text">Note the streamlined shape for burrowing through the sediment, and how the ambulacra, which bear the tube feet, do not continue onto the underside of the animal where the mouth is.<br />This is because the tube feet are used for respiration but not for movement, for which small spines are used.</div> </div> bilateral burrow movement pentaradial symmetry https://wserv3.esc.cam.ac.uk/p1acollections/files/original/5e888ad8cc2b9b0342f86ef1af785c7e.png 4b7e592cb8b1cbe0dd9e8fdede699aab https://wserv3.esc.cam.ac.uk/p1acollections/files/original/ce5f10a60393b19236600240c89c14a3.png 2d271509f57998b329fbdd24c1606832 Physical Object An inanimate, three-dimensional object or substance. Note that digital representations of, or surrogates for, these objects should use Moving Image, Still Image, Text or one of the other types. Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource <h2><strong>TF0904<br /></strong></h2> <h2>Irregular echinoid</h2> Subject The topic of the resource <h3>Source</h3> <div class="element-text"><span>Quaternary River Gravel, derived from Cretaceous chalk</span></div> Description An account of the resource <div class="element"> <h3>Stratigraphic Range</h3> <div class="element-text">Cretaceous</div> </div> <div class="element"> <h3>Taxonomy</h3> <div class="element-text">Phylum: Echinodermata<br />Class: Echinoidea<br />Subclass: Irregularia<br />Order: Echinoneoida<br />Genus: Conulus</div> </div> <div class="element"> <h3>Distinctive Features</h3> <div class="element-text">Bilateral symmetry<br />Five radial ambulacra<br />Interambulacra<br />Migrated periproct (opening for anus)<br />Peristome (opening for mouth)</div> </div> <div class="element"> <h3>Preservation</h3> <div class="element-text">This fossil was collected in Quaternary river gravel. Originally it was preserved in the Upper Chalk (Cretaceous). This was broken up into clasts by erosive processes, one of which was this irregular echinoid. The echinoid clast was carried by a river downstream and deposited in the river gravel unit during the Quaternary.</div> </div> <div class="element"> <h3>Advanced notes</h3> <div class="element-text">Note how the anus has migrated, but the peristome is still in the position you would expect from a regular echinoid (not migrated). Notice also how the ambulacra bearing the tube feet continue onto the underside, a feature not seen in more streamlined and derived irregular echinoids.</div> </div> bilateral pentaradial symmetry