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| | The Purbeck Formation, Lower Cretaceous, of Southern England, UK - A Bibliography - by Dr Ian West. (Site not responding. Last check: 2007-10-20) |
 | | The Cimolodonta are divided into an informal Paracimexomys group; three superfamilies: Ptilodontoidea, Djadochtatherioidea (new), and Taeniolabidoidea (restricted to Taeniolabididae); and five families (superfamily incertae sedis): Eucosmodontidae, Microcosmodontidae, Cimolodontidae, Boffiidae, and Kogaionidae; and some genera incertae sedis. |
 | | We argue that the Ptilodontoidea, and less certainly also the Cimolodontidae and Boffiidae, might have originated from among the plagiaulacid Line, a possible intermediate link being the Paracimexomys group. |
 | | The remaining Cimolodonta might have originated from unknown members of the Paracimexomys group with separated molar cusps and smooth enamel. |
| www.soton.ac.uk /~imw/Purbeck.htm (17704 words) |
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