Bathynectes muelleri

Bathynectes muelleri; Temporal range: Mid Miocene 16.3–12.8 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Subphylum:	Crustacea
Class:	Malacostraca
Order:	Decapoda
Infraorder:	Brachyura
Family:	Polybiidae
Genus:	Bathynectes
Species:	B. muelleri
Binomial name
	Bathynectes muelleri; Ossó and Stalennuy, 2011

Bathynectes muelleri is an extinct species of polybiid crab and the oldest known species of the genus Bathynectes. It lived in the Central Paratethys of modern-day Ukraine during the Badenian age(Langhian, middle Miocene ). While extant species of Bathynectes live mainly in deep water habitats, B. muelleri fossils were found in sediments indicative of shallow water habitats, suggesting the earliest Bathynectes originated in shallow waters, and descendent species migrated to deep-water habitats.[1]

References

Ossó, À. & Stalennuy, O. (2011). "Description of the first fossil species of Bathynectes (Brachyura, Polybiidae) in the Badenian (middle Miocene) of the Medobory Hills (Ukraine, Central Parathetys), with remarks on its habitat ecology)" (PDF). Treballs del Museu de Geologia de Barcelona. 18 (1): 37–46.

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[1] Ossó, À. & Stalennuy, O. (2011). "Description of the first fossil species of Bathynectes (Brachyura, Polybiidae) in the Badenian (middle Miocene) of the Medobory Hills (Ukraine, Central Parathetys), with remarks on its habitat ecology)" (PDF). Treballs del Museu de Geologia de Barcelona. 18 (1): 37–46.