Ditrupa bartonensis is a fossil Serpulid worm tube from Barton-on-Sea, Hampshire. The worm would have secreted the material to make the tube around its body. These were filter feeding worms which extended filter plumes above the vertically orientated tubes, buried in the sediment surface.
Dactylioceras
This tiny ammonite from the Jurassic shales at Holwell near Melton Mowbray has a form like Dactylioceras. It is likely to be a juvenile of that genus.
Barrosia
This large Bryozoan is Barrosia irregularis. It was collected from the Farringdon Sponge Gravels in Berkshire, UK. There is also a fish which bears the name Barrosia, so there is doubt about how the classification should be applied. The bryozoan was named first, so that should taker precedence. The fish is identical to an earlier named species, Calloplesiops and should take that name. This type of naming dilemma is occasionally an issue with fossils.
Isastraea
The limestone rocks in Gloucestershire have yielded this Jurassic coral. It shows a domed colony of Isastraea limitata which has been sectioned and polished to show the internal arrangement of corals.
Clissophyllum
The limestones near Matlock, Derbyshire contain many fossil coral reefs of Carboniferous age, suggesting that the UK had a tropical climate in the distant past. This specimen was initially identified as Clissophyllum species, but I have doubts about the validity of the classification.
Murchisonia
These tiny specimens are just 5 and 6 mm long. They are small gastropods of Murchisonia species. There is not enough material to give a specific species. They came from the Oxford Clay near Peterborough (ref: TL 197957) and they are an unusual find in these deep marine sediments.
Rimella
These small gastropods are Rimella species from the Barton Beds in Hampshire, UK. These are typical of the average fossil found in these beds. They are generally damaged, stained and incomplete, just like any other shells found on a beach. It is only the complete or exceptional fossils that appear in textbooks or museum displays.
Lithostrotion
This example of a widespread coral form is Lithostrotion junceum from the Robinson Limestone at Hilbeck Quarry, Brough, Cumbria. The mineralization of the specimen gives it a pleasing and variable appearance in polished section.
Typhis
This spiky gastropod is Typhis pugens. It was collected from the Barton Beds in Hampshire. It is a type of Murex snail belonging to the family Muricidae. These fossils are found from the Miocene to recent times across Northern Europe.
Turritella
This gastropod from Maryland, USA, is Turritella plebia. This long gastropod is common throughout the Miocene in the USA.
