Revisiting the identification of Syllipsimopodi bideni and timing of the decabrachian-octobrachian divergence
Christian Klug, Kevin Stevens, René Hoffmann, Michał Zatoń, Thomas Clements, Martin Košťák, Robert Weis, Kenneth De Baets, Jens Lehmann, Jakob Vinther, Dirk Fuchs · 2023
Read Revisiting the identification of Syllipsimopodi bideni and timing of the decabrachian-octobrachian divergence by Christian Klug, Kevin Stevens, René Hoffmann, Michał Zatoń, Thomas Clements, Martin Košťák, Robert Weis, Kenneth De Baets, Jens Lehmann, Jakob Vinther, Dirk Fuchs (2023) in the Tower of Babel, a free online library of public-domain works preserved in clean, searchable text. No sign-up. The full text is served as a plain-text file at a predictable URL, where text is present: https://antarctic-labs.com/tower-of-babel/pmc-10703834.txt.
Description
Christian Klug and co-authors challenge the naming of a fossil cephalopod claimed as the oldest of its kind, in a commentary paper from 2023. The fossil, named Syllipsimopodi bideni, came from the Bear Gulch Limestone in Montana. Its first describers read it as the oldest clear member of the eight-armed group.
Klug's team compared the specimen with another fossil from the same rocks, Gordoniconus beargulchensis. The two share shape, size, age, and site to a degree that suggests they are the same kind. Small gaps can be explained by damage during fossil formation and by a split rock face that hides key parts. If the two are one, the claimed early split between the eight-armed and ten-armed groups loses its support.
Catalog record
| CREATOR | Christian Klug, Kevin Stevens, René Hoffmann, Michał Zatoń, Thomas Clements, Martin Košťák, Robert Weis, Kenneth De Baets, Jens Lehmann, Jakob Vinther, Dirk Fuchs |
|---|---|
| YEAR | 2023 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 12 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |