1 10 2 https://wserv3.esc.cam.ac.uk/p1acollections/files/original/607dd801b6adf46497c9418c3fd72394.png a16b40b3163926bfad9f26045b1d2f4f https://wserv3.esc.cam.ac.uk/p1acollections/files/original/0e34c9106c2cbdf6715affea864aecb8.png b36238a2f85be777e5e0bed70b9fdc61 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 Fossils Description An account of the resource <p>Welcome to the fossils section of the website. This is designed to help you learn the different characteristics of each major fossil group so that you are able to distinguish between them.</p> <p>First year students, please refer to the specimens housed in the first year teaching laboratory. There is no substitute for handling the specimens themselves; this website is just an accessory to help you along the way.</p> <p>Animals occupy different environments, have different life habits and lived through different periods in geological time. It is good to be aware of these differences in lifestyle and timing, within and between phyla, classes, orders and families.</p> 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>Brachiopod</h2> Description An account of the resource <h2>Taxonomy</h2> <p>Phylum: Brachiopoda</p> <h2>Diagnostic features</h2> <p>Two valves (brachial and pedicle)</p> <p>Bilateral symmetry</p> <p>Growth lines</p> <p>Adductor and ductor muscle scars</p> <p>Pedicle</p> <p>Commissure</p> <p>Gape</p> <p>Teeth and socket (articulates; no teeth or socket in inarticulates)</p> <h2>Stratigraphic range</h2> <p>Cambrian to present</p> <h2>Way of life</h2> <p>Marine</p> <p>Attach to hard substrates using pedicle</p> <p>Filter feeding</p> <p>Sessile</p> <p>Infaunal, epifaunal, reclining</p> <h2>Advanced notes</h2> <p>Apparent decrease in diversity over time</p> <p>Limited to marginal environments in the modern ocean</p> <p>Adductor muscle used to close shell, ductor muscle used to open shell</p> <h2>Specimens</h2> <p><a href="/p1acollections/exhibits/show/brachiopods">Browse brachiopods</a></p> <h2>External links</h2> <p><a href="http://peabody.yale.edu/collections/blog/2011-11-07/brachiopods-versus-bivalves" target="_blank" rel="noreferrer noopener">Yale Peabody Museum of Natural History</a>: differences between bivalves and brachiopods</p> <p><a href="http://paleo.cortland.edu/tutorial/Brachiopods/brachmorph.htm">Cortland Paleo, Brachiopoda</a>: brachiopod morphology and ecology information</p> <p><a href="https://www.digitalatlasofancientlife.org/learn/nature-fossil-record/types-of-fossil-preservation/">Learn about types of preservation</a></p> sessile symmetry https://wserv3.esc.cam.ac.uk/p1acollections/files/original/6f0e00b620cedcff450eeb24b3353227.png c17c73f983d5da60b4389b3f0d0aedfa https://wserv3.esc.cam.ac.uk/p1acollections/files/original/a0a542afd484bbbed9415aa72e8d6b02.png c2725f4e72a31bb71133efca23804d9a 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>TF0112<br /></strong></h2> <h2>Dimyodon nilssoni</h2> Subject The topic of the resource <h3>Age</h3> <div class="element-text">Cretaceous<br /><br /><h3>Location</h3> <div class="element-text">Cambridge Greensand, Barrington</div> </div> Description An account of the resource <div class="element"> <h3>Species</h3> <div class="element-text">Dimyodon nilssoni</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: Mollusca<br />Class: Bivalvia<br />Order: Ostreoida</div> </div> <div class="element"> <h3>Preservation</h3> <div class="element-text">Cemented onto fish vertebra</div> </div> <div class="element"> <h3>Advanced notes</h3> <div class="element-text">Identification of these as bivalves took a very long time (historically) as few features are preserved. However, knowing that these are bivalves they can be easily spotted throughout much of the Jurassic and Cretaceous, cementing to hard substrates. The shape of the valve (of which only the inner layer remains) gives probably the most distinctive feature for this kind of animal.</div> </div> cement sessile substrate