| Jeletzkya | |
|---|---|
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| Artist's reconstruction ofJ. douglassae swimming above aTullimonstrum. | |
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| Genus: | †Jeletzkya |
| Species: | †J. douglassae |
Jeletzkya douglassae is a fossilbelemnoid from the earlyPennsylvanianMazon Creeklagerstätten and represents the earliest knowncrown-groupsquid.[1] Non-mineralized anatomy is preserved and comprises ten hookedtentacles and aradula. It is too poorly understood for assignment to any particular cephalopod taxon.[2]J. douglassae is 14 mm long.
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