Rhinconichthys

Rin-kon-ik-fiss.
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Name

Rhinconichthys.

Phonetic

Rin-kon-ik-fiss.

Named By

Matt Friedman,‭ ‬Kenshu Shimada,‭ ‬Larry D.‭ ‬Martin,‭ ‬Michael J.‭ ‬Everhart,‭ ‬Jeff Liston,‭ ‬Anthony Maltese‭ & ‬Michael Triebold‭ ‬-‭ ‬2010.

Classification

Chordata,‭ ‬Actinopterygii,‭ ‬Pachycormiformes,‭ ‬Pachycormidae.

Diet

Filter feeder.

Species

R.‭ ‬taylori‭ ‬,‭ ‬R.‭ ‬purgatoirensis,‭ ‬R.‭ ‬uyenoi

Size

R.‭ ‬purgatoirensis about‭ ‬2‭ ‬-‭ ‬2.7‭ ‬meters long.‭ ‬R.‭ ‬uyenoi.‭ ‬about‭ ‬3.4-4.5‭ ‬meters long.

Known locations

England.‭ ‬Japan‭ ‬-‭ ‬Mikasa Formation.‭ ‬USA,‭ ‬Colorado‭ ‬-‭ ‬Carlile Shale.

Time Period

Turonian of the Cretaceous.

Fossil representation

Partial remains of several individuals.

In Depth

       Rhinconichthys was first named in‭ ‬2010,‭ ‬from fossils that had been discovered in England.‭ ‬Then in‭ ‬2016‭ ‬a description of two new species,‭ ‬R.‭ ‬uyenoi from Japan and R.‭ ‬purgatoirensis from the USA were described,‭ ‬revealing to us that this fish genus potentially had a global distribution.‭ ‬Rhinconichthys is noted for the large hyomandibulae bones which would have allowed this to have had an incredibly wide gape,‭ ‬in turn allowing Rhinconichthys to filter‭ ‬large amounts of plankton from the sea water.

       Rhinconichthys is related to the genera Bonnerichthys and Leedsichthys.

Further Reading

– 100-million-year dynasty of giant planktivorous bony fishes in the Mesozoic seas.‭ ‬-‭ ‬Science‭ ‬327‭ (‬5968‭)‬:‭ ‬990‭–‬993.‭ ‬-‭ ‬Matt Friedman,‭ ‬Kenshu Shimada,‭ ‬Larry D.‭ ‬Martin,‭ ‬Michael J.‭ ‬Everhart,‭ ‬Jeff Liston,‭ ‬Anthony Maltese‭ & ‬Michael Triebold‭ ‬-‭ ‬2010. -‭ ‬Highly specialized suspension-feeding bony fish Rhinconichthys‭ (‬Actinopterygii:‭ ‬Pachycormiformes‭) ‬from the mid-Cretaceous of the United States,‭ ‬England,‭ ‬and Japan.‭ ‬-‭ ‬Cretaceous Research‭ ‬61:‭ ‬71‭–‬85.‭ ‬-‭ ‬Bruce Schumacher,‭ ‬Kenshu Shimada,‭ ‬Jeff Liston,‭ ‬Anthony Maltese‭ ‬-‭ ‬2016.

SPECIES SPOTLIGHT

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