Geobulletin alpha

Neck ontogeny in Tyrannosaurus rex, redux 

Back into 2019, when Matt and I visited the Carnegie Museum, we were struck by how different the necks of juvenile and adult Tyrannosaurus rex individuals are. In particular, the juvenile individual known as Jane has a slender and amost fragile-looking neck compared with the monstrously robust neck of its adult counterpart. A few weeks

Crested Oysters 

These shells appear to be Crested Oysters or Ostrea equestris (Say, 1834).  One has group of barnacles attached to it. They were found by a 17 year old Lucien Pearson Beckner in 1889 at Naples, Florida, USA. Mr. Beckner was a mentor to Professor James Conkin (1924-2017) and his natural history collection was left to him upon his death.