{'fraction_non_alphanumeric': 0.026578073089700997, 'fraction_numerical': 0.006644518272425249, 'mean_word_length': 5.153061224489796, '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}}
Sinusoidal trail formed by a Recent biting midge (Family Ceratopogonidae): trace fossil implications

A Recent sinusoidal trail made by a biting midge (family Ceratopogonidae, genus ?Bezzia) moving on the surface of wet mud along the edge of a freshwater pond has been observed. The trail is similar to the trace fossil Cochlichnus Hitchcock, 1858. The wave length, wave amplitude, and overall form and shape of this modern trail compares favorably to Eocene wave-like trails attributed to nematodes. Consequently, a ceratopogonid larva is believed responsible for at least some of those fossil trails.