page_title: List of the Mesozoic life of Texas
section_title: M
hierarchical_section_title: List of the Mesozoic life of Texas / M
caption_attribution_description: English: Malerisaurus robinsonae, a protorosaur from the Late Triassic of India. Digital.
context_page_description: This list of the Mesozoic life of Texas contains the various prehistoric life-forms whose fossilized remains have been reported from within the US state of Texas and are between 252.17 and 66 million years of age.
context_section_description: †Macraster
  †Macraster arguilera
  †Macraster elegans
  †Macraster nodopyda
  †Macrepistius
  †Macrocerithium
  †Macrocerithium tramitense
  †Macromesodon
  †Macromesodon dumblei
  †Magadiceramus
  †Magadiceramus complicatus
  †Magadiceramus crenelatus
  †Magadiceramus crenistriatus – or unidentified comparable form
  †Magadiceramus subquadratus
  †Magnoavipes – type locality for genus
  †Magnoavipes lowei – type locality for species
   †Malerisaurus
  Malletia
  †Malletia littlei
  †Malletia longfrons
  †Malletia longifrons
  †Malletia stephensoni
  †Mammites
  †Mammites powelli – type locality for species
  †Mantelliceras
  †Mantelliceras cantianum
  †Mantelliceras martimpreyi – or unidentified comparable form
  †Mantelliceras saxbii
  †Margaritella
  †Margaritella pumila
   †Mariella
  †Mariella bosquensis
  †Mariella brazoensis
  †Mariella camachoensis
  †Mariella cenomanensis – or unidentified comparable form
  †Mariella davisense
  †Mariella rhacioformis
  †Mariella wysogorskii
  †Mataxa
  †Mataxa subteres
  †Mataxa valida
  †Mataxa valida multilirae
  † Mathilda
  †Mathilda cedarensis
  †Mathilda corona
  †Meandraraea
  †Meandraraea plummeri – type locality for species
  †Meandraraea tulae – or unidentified comparable form
  †Medionapus
  †Medionapus elongatus
  Megalomphalus – or unidentified comparable form
  †Megalosauropus – tentative report
  †Megalosauropus titanopelobatidus – type locality for species
  Melanatria
  †Melanatria venusta
  †Melicertites
  Membranipora
  Membraniporidra
  †Menabites
  †Menabites austinensis
  †Menabites danei
  †Menabites delawarensis
  †Menabites vanuxemi
   †Meniscoessus
  †Menuites
  Mesalia
  †Mesalia shumardi
  †Mesodma
  †Mesomorpha
  †Mesomorpha excavata
  †Mesomorpha vaughani – type locality for species
  †Metengonoceras
  †Metengonoceras acutum
  †Metengonoceras ambiguum
  †Metengonoceras bravoense
  †Metengonoceras dumbli
  †Metengonoceras inscriptum
  †Metoicoceras
  †Metoicoceras crassicostae
  †Metoicoceras geslinianum
  †Metoicoceras latoventer
  †Metoicoceras swallovi
  †Metoicoceras swallovii
  †Metoicoceras swallovii macrum
   †Metoposaurus
  †Metoposaurus bakeri – type locality for species
  †Metoposaurus fraasi
  †Metoposaurus jonesi – type locality for species
  †Metoposaurus perfecta
  †Mexicaprina
  †Mexicaprina cornuta
  †Micrabacia
  †Micrabacia marylandica
  †Micrabacia radiata – type locality for species
  †Micraster
  †Micraster americanus
  †Micraster uddeni – type locality for species
  †Microsolena
  †Microsolena texana – type locality for species
  †Microsulcatoceras
  †Microsulcatoceras texanum – type locality for species
  †Miocardiopsis
  †Miocardiopsis hendersoni
  †Miocardiopsis shumardi
   † Modiolus
  †Modiolus sedesclaris
  †Modiolus sedesclarus
  †Modiolus sedisclarus
  Monodonta – tentative report
  †Monodonta cancellosa
  †Monopleura – tentative report
  †Monroea
  †Monroea castellana
  Montastrea
  †Montastrea comalensis
  †Montastrea edwardsensis – type locality for species
  †Montastrea pecosensis – type locality for species
  †Montastrea roemeriana – type locality for species
  †Montastrea texana
  †Montastrea travisensis
  †Montastrea whitneyi
  †Morea
  †Morea cancellaria
  †Morea cancellaria corsicanensis
  †Morea cancellaria crassa
  †Morea marylandica
  †Morea marylandica bella
  †Morea marylandica languida
  †Morea transenna
  †Moremanoceras
  †Moremanoceras elgini
  †Moremanoceras flexuosum – type locality for species
  †Morphastrea
  †Morphastrea barcenai – or unidentified comparable form
  †Mortoniceras
  †Mortoniceras austinensis
  †Mortoniceras drakei
  †Mortoniceras maxima
  †Mortoniceras minima
  †Mortoniceras perinflatum
  †Mortoniceras rostratum
  †Mortoniceras wintoni
   †Mosasaurus
  †Mosasaurus maximus
  †Mosasaurus missouriensis – tentative report
  †Muensterella
  †Muensterella jillae – type locality for species
  †Myobarbum
  †Myobarbum laevigatum
  †Myriophyllia – tentative report
  †Myriophyllia dumblei – type locality for species
  Myrtea
  †Myrtea stephensoni
  †Mytiloides
  †Mytiloides columbianus
  † Mytilus
caption: Life restoration of the Late Triassic reptile Malerisaurus
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