{'fraction_non_alphanumeric': 0.02586206896551724, 'fraction_numerical': 0.0, 'mean_word_length': 5.333333333333333, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
The Cretaceous crab Rathbunopon : revision, a new species and new localities

The crab genus Rathhunopon is exclusively known from Cretaceous rocks, mainly from Europe. Here two new European localities are presented: one in the Albian/Cenomanian of northern Spain yielding well-preserved specimens of Rathhunopon ohesum, and one from the lower Aptian at the German-Austrian border yielding Rathhunopon schrattenkalkensis n. sp. Both are found in association with coral reefs. Based upon a revision of the genus, we place Rathhunopon within the Prosopidae. Furthermore, Homolopsis tuherculata is transferred to Rathhunopon. Placement of 'Rathhunopon' atherfieldensis in Rathhunopon is not tenable; we place it here within the Homoloidea in open nomenclature. With the addition of R. tuherculatum, Rathhunopon is interpreted to have evolved in the Hauterivian and diversified in the Albian/Cenomanian. Whereas R. ohesum resided mainly in reefal settings, Rathhunopon species lived in a variety of environments and are suggested to be generalists.