Not much is known about the anatomy, biology, and ecology of the enigmatic trilobozoans.
Trilobozoans are unique to the Ediacaran biota; they appeared suddenly 560 million-years-ago in the fossil record without any precursors.
On February 12, 2021, Tom Bethell passed away at the age of 84 after a long illness.
A recent paper by Richard Buggs shows that a problem for evolutionary theory has grown more acute since Darwin’s time.
I remember having an exchange with Tom about the meaning of his last name, which seems to correspond to the Biblical place name Beth El, meaning “House of God.”