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Maghriboselache documents a broad-snouted Devonian symmoriiform

Several partly articulated Famennian specimens preserve three-dimensional neurocrania, a broad cartilage-enclosed snout, widely separated nasal capsules, a high-aspect-ratio tail and large pectoral fins; the sample records sensory and body-plan disparity without dating a global crown origin.

Represented range369.5–369 Ma
RegionsThylacocephalan Layer, southern Maïder and Tafilalt, eastern Anti-Atlas, Morocco
CladesMaghriboselache mohamezanei · symmoriiform Chondrichthyes

Claim ledger

event-mechanism · medium

Several partly articulated Maghriboselache mohamezanei skeletons from the Famennian Thylacocephalan Layer of Morocco preserve three-dimensional neurocrania with a broad cartilage-enclosed snout, widely separated nasal capsules, a high-aspect-ratio tail and large pectoral fins; this is a specimen-level sensory and body-plan record, not a global crown-chondrichthyan origin.

claim:event:famennian-maghriboselache-broad-snout

References

  1. Broad snouted cladoselachian with sensory specialization at the base of modern chondrichthyansKlug, C.; Coates, M.I.; Frey, L.; Greif, M.; Jobbins, M.; Pohle, A.; Lagnaoui, A.; Haouz, W.B.; Ginter, M. · 2023 · DOI 10.1186/s13358-023-00266-6
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