than sixty-five degrees. While this is similar to the related genera Palaeoconcha and Similodonta, they are both noted for anterior-posterior angles of...

the two genera were distinct, an opinion that has since been accepted. Palaeoconcha is known from at least four species ranging across Europe, Asia, North...

genus Palaeoconcha. The two genera can be separated based on the presence of an auricle, a projection on the inside of the shell, in Palaeoconcha species...

†Palaeocapulus acutirostre †Palaeocaudina †Palaeocaudina kansasensis †Palaeoconcha †Palaeoconcha obliqua †Palaeocrinus †Palaeocrinus avondalensis †Palaeocrinus...

†Palaeocapulus †Palaeocapulus acutirostre †Palaeocapulus equilateralis †Palaeoconcha †Palaeoconcha faberi †Palaeoneilo †Palaeoneilo sulcatina †Palaeoneilo truncata...

Emiliania) Hemiconcavodonta Praenuculinae Cuyopsis Fidera Ledopsis Palaeoconcha Paulinea Pensarnia Praeleda Praenucula (type genus) Trigonoconcha Similodonta...

†Palaeocapulus equilateralis †Palaeocapulus morsei – type locality for species †Palaeoconcha †Palaeolima †Palaeolima retifera †Palaeolima triplistriata †Palaeoneilo...

†Paladin †Paladin wilsoni †Palaeocapulus †Palaeocapulus equilateralis †Palaeoconcha †Palaeocyclus †Palaeoneilo †Palaeoneilo barrisi †Palaeoneilo fecunda...