Mystery Nevada fossil site could be ancient maternity ward


              This photo provided by the Natural History Museum of Utah shows an ichthyosaur tooth, in hand, and a snout fragment, top, in 2022. (Natural History Museum of Utah via AP)
            
              This photo provided by Neil Kelley shows a researcher next to an ichthyosaur skeleton at Nevada's Berlin-Ichthyosaur State Park in 2014. (Neil Kelley/Vanderbilt University via AP)
            
              This illustration provided by Neil Kelley in 2022, depicts a skeletal reconstruction of the Triassic shonisaurus ichthyosaur next to a human swimmer for scale. (Neil Kelley/Vanderbilt University via AP)
            
              This photo provided by Neil Kelley shows researchers next to an ichthyosaur skeleton at Nevada's Berlin-Ichthyosaur State Park in 2015. (Neil Kelley/Vanderbilt University via AP)
            
              This illustration provided by the Smithsonian National Museum of Natural History in December 2022 depicts a group of adult and newly born Triassic shonisaurus ichthyosaurs. (Gabriel Ugueto/NMNH via AP)
            
              This photo provided by the Natural History Museum of Utah shows an ichthyosaur tooth, in hand, and a snout fragment, top, in 2022. (Natural History Museum of Utah via AP)
            
              This photo provided by Neil Kelley shows a researcher next to an ichthyosaur skeleton at Nevada's Berlin-Ichthyosaur State Park in 2014. (Neil Kelley/Vanderbilt University via AP)
            
              This illustration provided by Neil Kelley in 2022, depicts a skeletal reconstruction of the Triassic shonisaurus ichthyosaur next to a human swimmer for scale. (Neil Kelley/Vanderbilt University via AP)
            
              This photo provided by Neil Kelley shows researchers next to an ichthyosaur skeleton at Nevada's Berlin-Ichthyosaur State Park in 2015. (Neil Kelley/Vanderbilt University via AP)
            
              This illustration provided by the Smithsonian National Museum of Natural History in December 2022 depicts a group of adult and newly born Triassic shonisaurus ichthyosaurs. (Gabriel Ugueto/NMNH via AP)
            
              This photo provided by the Natural History Museum of Utah shows an ichthyosaur tooth, in hand, and a snout fragment, top, in 2022. (Natural History Museum of Utah via AP)
            
              This photo provided by Neil Kelley shows a researcher next to an ichthyosaur skeleton at Nevada's Berlin-Ichthyosaur State Park in 2014. (Neil Kelley/Vanderbilt University via AP)
            
              This illustration provided by Neil Kelley in 2022, depicts a skeletal reconstruction of the Triassic shonisaurus ichthyosaur next to a human swimmer for scale. (Neil Kelley/Vanderbilt University via AP)
            
              This photo provided by Neil Kelley shows researchers next to an ichthyosaur skeleton at Nevada's Berlin-Ichthyosaur State Park in 2015. (Neil Kelley/Vanderbilt University via AP)
            
              This illustration provided by the Smithsonian National Museum of Natural History in December 2022 depicts a group of adult and newly born Triassic shonisaurus ichthyosaurs. (Gabriel Ugueto/NMNH via AP)
            
              This photo provided by the Natural History Museum of Utah shows an ichthyosaur tooth, in hand, and a snout fragment, top, in 2022. (Natural History Museum of Utah via AP)
            
              This photo provided by Neil Kelley shows a researcher next to an ichthyosaur skeleton at Nevada's Berlin-Ichthyosaur State Park in 2014. (Neil Kelley/Vanderbilt University via AP)
            
              This illustration provided by Neil Kelley in 2022, depicts a skeletal reconstruction of the Triassic shonisaurus ichthyosaur next to a human swimmer for scale. (Neil Kelley/Vanderbilt University via AP)
            
              This photo provided by Neil Kelley shows researchers next to an ichthyosaur skeleton at Nevada's Berlin-Ichthyosaur State Park in 2015. (Neil Kelley/Vanderbilt University via AP)
            
              This illustration provided by the Smithsonian National Museum of Natural History in December 2022 depicts a group of adult and newly born Triassic shonisaurus ichthyosaurs. (Gabriel Ugueto/NMNH via AP)
            
              This photo provided by the Natural History Museum of Utah shows an ichthyosaur tooth, in hand, and a snout fragment, top, in 2022. (Natural History Museum of Utah via AP)
            
              This photo provided by Neil Kelley shows a researcher next to an ichthyosaur skeleton at Nevada's Berlin-Ichthyosaur State Park in 2014. (Neil Kelley/Vanderbilt University via AP)
            
              This illustration provided by Neil Kelley in 2022, depicts a skeletal reconstruction of the Triassic shonisaurus ichthyosaur next to a human swimmer for scale. (Neil Kelley/Vanderbilt University via AP)
            
              This photo provided by Neil Kelley shows researchers next to an ichthyosaur skeleton at Nevada's Berlin-Ichthyosaur State Park in 2015. (Neil Kelley/Vanderbilt University via AP)
            
              This illustration provided by the Smithsonian National Museum of Natural History in December 2022 depicts a group of adult and newly born Triassic shonisaurus ichthyosaurs. (Gabriel Ugueto/NMNH via AP)
            
              This photo provided by the Natural History Museum of Utah shows an ichthyosaur tooth, in hand, and a snout fragment, top, in 2022. (Natural History Museum of Utah via AP)
            
              This photo provided by Neil Kelley shows a researcher next to an ichthyosaur skeleton at Nevada's Berlin-Ichthyosaur State Park in 2014. (Neil Kelley/Vanderbilt University via AP)
            
              This illustration provided by Neil Kelley in 2022, depicts a skeletal reconstruction of the Triassic shonisaurus ichthyosaur next to a human swimmer for scale. (Neil Kelley/Vanderbilt University via AP)
            
              This photo provided by Neil Kelley shows researchers next to an ichthyosaur skeleton at Nevada's Berlin-Ichthyosaur State Park in 2015. (Neil Kelley/Vanderbilt University via AP)
            
              This illustration provided by the Smithsonian National Museum of Natural History in December 2022 depicts a group of adult and newly born Triassic shonisaurus ichthyosaurs. (Gabriel Ugueto/NMNH via AP)
            
              This photo provided by the Natural History Museum of Utah shows an ichthyosaur tooth, in hand, and a snout fragment, top, in 2022. (Natural History Museum of Utah via AP)
            
              This photo provided by Neil Kelley shows a researcher next to an ichthyosaur skeleton at Nevada's Berlin-Ichthyosaur State Park in 2014. (Neil Kelley/Vanderbilt University via AP)
            
              This illustration provided by Neil Kelley in 2022, depicts a skeletal reconstruction of the Triassic shonisaurus ichthyosaur next to a human swimmer for scale. (Neil Kelley/Vanderbilt University via AP)
            
              This photo provided by Neil Kelley shows researchers next to an ichthyosaur skeleton at Nevada's Berlin-Ichthyosaur State Park in 2015. (Neil Kelley/Vanderbilt University via AP)
            
              This illustration provided by the Smithsonian National Museum of Natural History in December 2022 depicts a group of adult and newly born Triassic shonisaurus ichthyosaurs. (Gabriel Ugueto/NMNH via AP)
            
              This photo provided by the Natural History Museum of Utah shows an ichthyosaur tooth, in hand, and a snout fragment, top, in 2022. (Natural History Museum of Utah via AP)
            
              This photo provided by Neil Kelley shows a researcher next to an ichthyosaur skeleton at Nevada's Berlin-Ichthyosaur State Park in 2014. (Neil Kelley/Vanderbilt University via AP)
            
              This illustration provided by Neil Kelley in 2022, depicts a skeletal reconstruction of the Triassic shonisaurus ichthyosaur next to a human swimmer for scale. (Neil Kelley/Vanderbilt University via AP)
            
              This photo provided by Neil Kelley shows researchers next to an ichthyosaur skeleton at Nevada's Berlin-Ichthyosaur State Park in 2015. (Neil Kelley/Vanderbilt University via AP)
            
              This illustration provided by the Smithsonian National Museum of Natural History in December 2022 depicts a group of adult and newly born Triassic shonisaurus ichthyosaurs. (Gabriel Ugueto/NMNH via AP)
            
              This photo provided by the Natural History Museum of Utah shows an ichthyosaur tooth, in hand, and a snout fragment, top, in 2022. (Natural History Museum of Utah via AP)
            
              This photo provided by Neil Kelley shows a researcher next to an ichthyosaur skeleton at Nevada's Berlin-Ichthyosaur State Park in 2014. (Neil Kelley/Vanderbilt University via AP)
            
              This illustration provided by Neil Kelley in 2022, depicts a skeletal reconstruction of the Triassic shonisaurus ichthyosaur next to a human swimmer for scale. (Neil Kelley/Vanderbilt University via AP)
            
              This photo provided by Neil Kelley shows researchers next to an ichthyosaur skeleton at Nevada's Berlin-Ichthyosaur State Park in 2015. (Neil Kelley/Vanderbilt University via AP)
            
              This illustration provided by the Smithsonian National Museum of Natural History in December 2022 depicts a group of adult and newly born Triassic shonisaurus ichthyosaurs. (Gabriel Ugueto/NMNH via AP)
            
              This photo provided by the Natural History Museum of Utah shows an ichthyosaur tooth, in hand, and a snout fragment, top, in 2022. (Natural History Museum of Utah via AP)
            
              This photo provided by Neil Kelley shows a researcher next to an ichthyosaur skeleton at Nevada's Berlin-Ichthyosaur State Park in 2014. (Neil Kelley/Vanderbilt University via AP)
            
              This illustration provided by Neil Kelley in 2022, depicts a skeletal reconstruction of the Triassic shonisaurus ichthyosaur next to a human swimmer for scale. (Neil Kelley/Vanderbilt University via AP)
            
              This photo provided by Neil Kelley shows researchers next to an ichthyosaur skeleton at Nevada's Berlin-Ichthyosaur State Park in 2015. (Neil Kelley/Vanderbilt University via AP)
            
              This illustration provided by the Smithsonian National Museum of Natural History in December 2022 depicts a group of adult and newly born Triassic shonisaurus ichthyosaurs. (Gabriel Ugueto/NMNH via AP)
            
              This photo provided by the Natural History Museum of Utah shows an ichthyosaur tooth, in hand, and a snout fragment, top, in 2022. (Natural History Museum of Utah via AP)
            
              This photo provided by Neil Kelley shows a researcher next to an ichthyosaur skeleton at Nevada's Berlin-Ichthyosaur State Park in 2014. (Neil Kelley/Vanderbilt University via AP)
            
              This illustration provided by Neil Kelley in 2022, depicts a skeletal reconstruction of the Triassic shonisaurus ichthyosaur next to a human swimmer for scale. (Neil Kelley/Vanderbilt University via AP)
            
              This photo provided by Neil Kelley shows researchers next to an ichthyosaur skeleton at Nevada's Berlin-Ichthyosaur State Park in 2015. (Neil Kelley/Vanderbilt University via AP)
            
              This illustration provided by the Smithsonian National Museum of Natural History in December 2022 depicts a group of adult and newly born Triassic shonisaurus ichthyosaurs. (Gabriel Ugueto/NMNH via AP)
            
              This photo provided by the Natural History Museum of Utah shows an ichthyosaur tooth, in hand, and a snout fragment, top, in 2022. (Natural History Museum of Utah via AP)
            
              This photo provided by Neil Kelley shows a researcher next to an ichthyosaur skeleton at Nevada's Berlin-Ichthyosaur State Park in 2014. (Neil Kelley/Vanderbilt University via AP)
            
              This illustration provided by Neil Kelley in 2022, depicts a skeletal reconstruction of the Triassic shonisaurus ichthyosaur next to a human swimmer for scale. (Neil Kelley/Vanderbilt University via AP)
            
              This photo provided by Neil Kelley shows researchers next to an ichthyosaur skeleton at Nevada's Berlin-Ichthyosaur State Park in 2015. (Neil Kelley/Vanderbilt University via AP)
            
              This illustration provided by the Smithsonian National Museum of Natural History in December 2022 depicts a group of adult and newly born Triassic shonisaurus ichthyosaurs. (Gabriel Ugueto/NMNH via AP)
            
              This photo provided by the Natural History Museum of Utah shows an ichthyosaur tooth, in hand, and a snout fragment, top, in 2022. (Natural History Museum of Utah via AP)
            
              This photo provided by Neil Kelley shows a researcher next to an ichthyosaur skeleton at Nevada's Berlin-Ichthyosaur State Park in 2014. (Neil Kelley/Vanderbilt University via AP)
            
              This illustration provided by Neil Kelley in 2022, depicts a skeletal reconstruction of the Triassic shonisaurus ichthyosaur next to a human swimmer for scale. (Neil Kelley/Vanderbilt University via AP)
            
              This photo provided by Neil Kelley shows researchers next to an ichthyosaur skeleton at Nevada's Berlin-Ichthyosaur State Park in 2015. (Neil Kelley/Vanderbilt University via AP)
            
              This illustration provided by the Smithsonian National Museum of Natural History in December 2022 depicts a group of adult and newly born Triassic shonisaurus ichthyosaurs. (Gabriel Ugueto/NMNH via AP)
            
              This photo provided by the Natural History Museum of Utah shows an ichthyosaur tooth, in hand, and a snout fragment, top, in 2022. (Natural History Museum of Utah via AP)
            
              This photo provided by Neil Kelley shows a researcher next to an ichthyosaur skeleton at Nevada's Berlin-Ichthyosaur State Park in 2014. (Neil Kelley/Vanderbilt University via AP)
            
              This illustration provided by Neil Kelley in 2022, depicts a skeletal reconstruction of the Triassic shonisaurus ichthyosaur next to a human swimmer for scale. (Neil Kelley/Vanderbilt University via AP)
            
              This photo provided by Neil Kelley shows researchers next to an ichthyosaur skeleton at Nevada's Berlin-Ichthyosaur State Park in 2015. (Neil Kelley/Vanderbilt University via AP)
            
              This illustration provided by the Smithsonian National Museum of Natural History in December 2022 depicts a group of adult and newly born Triassic shonisaurus ichthyosaurs. (Gabriel Ugueto/NMNH via AP)
            
              This photo provided by the Natural History Museum of Utah shows an ichthyosaur tooth, in hand, and a snout fragment, top, in 2022. (Natural History Museum of Utah via AP)
            
              This photo provided by Neil Kelley shows a researcher next to an ichthyosaur skeleton at Nevada's Berlin-Ichthyosaur State Park in 2014. (Neil Kelley/Vanderbilt University via AP)
            
              This illustration provided by Neil Kelley in 2022, depicts a skeletal reconstruction of the Triassic shonisaurus ichthyosaur next to a human swimmer for scale. (Neil Kelley/Vanderbilt University via AP)
            
              This photo provided by Neil Kelley shows researchers next to an ichthyosaur skeleton at Nevada's Berlin-Ichthyosaur State Park in 2015. (Neil Kelley/Vanderbilt University via AP)
            
              This illustration provided by the Smithsonian National Museum of Natural History in December 2022 depicts a group of adult and newly born Triassic shonisaurus ichthyosaurs. (Gabriel Ugueto/NMNH via AP)
            
              This photo provided by the Natural History Museum of Utah shows an ichthyosaur tooth, in hand, and a snout fragment, top, in 2022. (Natural History Museum of Utah via AP)
            
              This photo provided by Neil Kelley shows a researcher next to an ichthyosaur skeleton at Nevada's Berlin-Ichthyosaur State Park in 2014. (Neil Kelley/Vanderbilt University via AP)
            
              This illustration provided by Neil Kelley in 2022, depicts a skeletal reconstruction of the Triassic shonisaurus ichthyosaur next to a human swimmer for scale. (Neil Kelley/Vanderbilt University via AP)
            
              This photo provided by Neil Kelley shows researchers next to an ichthyosaur skeleton at Nevada's Berlin-Ichthyosaur State Park in 2015. (Neil Kelley/Vanderbilt University via AP)
            
              This illustration provided by the Smithsonian National Museum of Natural History in December 2022 depicts a group of adult and newly born Triassic shonisaurus ichthyosaurs. (Gabriel Ugueto/NMNH via AP)
            
              This photo provided by the Natural History Museum of Utah shows an ichthyosaur tooth, in hand, and a snout fragment, top, in 2022. (Natural History Museum of Utah via AP)
            
              This photo provided by Neil Kelley shows a researcher next to an ichthyosaur skeleton at Nevada's Berlin-Ichthyosaur State Park in 2014. (Neil Kelley/Vanderbilt University via AP)
            
              This illustration provided by Neil Kelley in 2022, depicts a skeletal reconstruction of the Triassic shonisaurus ichthyosaur next to a human swimmer for scale. (Neil Kelley/Vanderbilt University via AP)
            
              This photo provided by Neil Kelley shows researchers next to an ichthyosaur skeleton at Nevada's Berlin-Ichthyosaur State Park in 2015. (Neil Kelley/Vanderbilt University via AP)
            
              This illustration provided by the Smithsonian National Museum of Natural History in December 2022 depicts a group of adult and newly born Triassic shonisaurus ichthyosaurs. (Gabriel Ugueto/NMNH via AP)
            
              This photo provided by the Natural History Museum of Utah shows an ichthyosaur tooth, in hand, and a snout fragment, top, in 2022. (Natural History Museum of Utah via AP)
            
              This photo provided by Neil Kelley shows a researcher next to an ichthyosaur skeleton at Nevada's Berlin-Ichthyosaur State Park in 2014. (Neil Kelley/Vanderbilt University via AP)
            
              This illustration provided by Neil Kelley in 2022, depicts a skeletal reconstruction of the Triassic shonisaurus ichthyosaur next to a human swimmer for scale. (Neil Kelley/Vanderbilt University via AP)
            
              This photo provided by Neil Kelley shows researchers next to an ichthyosaur skeleton at Nevada's Berlin-Ichthyosaur State Park in 2015. (Neil Kelley/Vanderbilt University via AP)
            
              This illustration provided by the Smithsonian National Museum of Natural History in December 2022 depicts a group of adult and newly born Triassic shonisaurus ichthyosaurs. (Gabriel Ugueto/NMNH via AP)
            
              This photo provided by the Natural History Museum of Utah shows an ichthyosaur tooth, in hand, and a snout fragment, top, in 2022. (Natural History Museum of Utah via AP)
            
              This photo provided by Neil Kelley shows a researcher next to an ichthyosaur skeleton at Nevada's Berlin-Ichthyosaur State Park in 2014. (Neil Kelley/Vanderbilt University via AP)
            
              This illustration provided by Neil Kelley in 2022, depicts a skeletal reconstruction of the Triassic shonisaurus ichthyosaur next to a human swimmer for scale. (Neil Kelley/Vanderbilt University via AP)
            
              This photo provided by Neil Kelley shows researchers next to an ichthyosaur skeleton at Nevada's Berlin-Ichthyosaur State Park in 2015. (Neil Kelley/Vanderbilt University via AP)
            
              This illustration provided by the Smithsonian National Museum of Natural History in December 2022 depicts a group of adult and newly born Triassic shonisaurus ichthyosaurs. (Gabriel Ugueto/NMNH via AP)
            
              This photo provided by the Natural History Museum of Utah shows an ichthyosaur tooth, in hand, and a snout fragment, top, in 2022. (Natural History Museum of Utah via AP)
            
              This photo provided by Neil Kelley shows a researcher next to an ichthyosaur skeleton at Nevada's Berlin-Ichthyosaur State Park in 2014. (Neil Kelley/Vanderbilt University via AP)
            
              This illustration provided by Neil Kelley in 2022, depicts a skeletal reconstruction of the Triassic shonisaurus ichthyosaur next to a human swimmer for scale. (Neil Kelley/Vanderbilt University via AP)
            
              This photo provided by Neil Kelley shows researchers next to an ichthyosaur skeleton at Nevada's Berlin-Ichthyosaur State Park in 2015. (Neil Kelley/Vanderbilt University via AP)
            
              This illustration provided by the Smithsonian National Museum of Natural History in December 2022 depicts a group of adult and newly born Triassic shonisaurus ichthyosaurs. (Gabriel Ugueto/NMNH via AP)
Mystery Nevada fossil site could be ancient maternity ward