Tag: hagfish
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Mazon Monday #324: Stepwise loss of complexity in hagfish eyes prior to deep sea colonization
Mazon Creek hagfish made headlines again last week. New research led by Victoria McCoy, Assistant Professor in the Department of Geosciences at the University of Wisconsin–Milwaukee, was published in the journal Biology Letters. In the paper, “Stepwise Loss of Complexity in Hagfish Eyes Prior to Deep-Sea Colonization,” McCoy collaborated with several familiar names… Arjan Mann…
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Mazon Monday #253: Pipiscius zangerli
Pipiscius zangerli is an extinct species of lamprey that lived 307-309 million years ago, during the Middle Pennsylvanian Epoch of the Carboniferous Period. It has a distinctive crown-like mouth comprising a ring of radially arranged teeth. It is known from the Mazon Creek fossil beds located in present-day Illinois. It was described by David Bardack…
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Fossil Friday #190: Squirmarius testai
Squirmarius testai is up this week. It’s a new Mazon Creek fossil family member and hagfish. It was the subject of Mazon Monday #193.
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Mazon Monday #193: A reappraisal of Nemavermes mackeei from the Mazon Creek fossil site expands Carboniferous cyclostome diversity
The Mazon Creek fossil family has a new member… Squirmarius testai. It was described in the paper “A reappraisal of Nemavermes mackeei from the Mazon Creek fossil site expands Carboniferous cyclostome diversity“. The paper’s lead author is Victoria McCoy, who you’ll remember from her work on Tullymonstrum gregarium. S. testai was named for Tom Testa,…
