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Hypophylloceras tethys Ammonite Bajocian, Morocco Jurassic period ( 201.3 -145 million years ago) Hypophylloceras is a Cretaceous ammonite with a finely ribbed, compressed, involute shell; some having periodic stronger ribs or folds. The suture is complex, with large, asymmetric and finely divided lobes; the 1st lateral being much larger than the external (=ventral) and 2nd lateral lobes. Saddle endings commonly not phylloid. Kingdom: Animalia Pylum: Mollusca Class: Cephalopoda Order: †Ammonitida Family: †Phylloceratidae Genus: †Hypophylloceras Species: †tethys

Hypophylloceras tethys Ammonite Bajocian, Morocco Jurassic period ( 201.3 -145 million years ago) Hypophylloceras is a Cretaceous ammonite with a finely ribbed, compressed, involute shell; some having periodic stronger ribs or folds. The suture is complex, with large, asymmetric and finely divided lobes; the 1st lateral being much larger than the external (=ventral) and 2nd lateral lobes. Saddle endings commonly not phylloid. Kingdom: Animalia Pylum: Mollusca Class: Cephalopoda Order: †Ammonitida Family: †Phylloceratidae Genus: †Hypophylloceras Species: †tethys

Holcophylloceras mediterraneum Ammonite Phlycticeras sp. Ammonite Bajocian, Morocco Jurassic period ( 201.3 -145 million years ago) Phylloceratidae is the predominant family of the Phylloceratina with some 15 or more genera found in rocks ranging from the Lower Jurassic to the Upper Cretaceous. Members of the Phylloceratidae are characterized by smooth, involute shells with very thin walls. Many are covered with fine growth lines but are usually without ribbing. Sutures are complex with the major and minor branches of the saddles with phylloid or spatulate endings. The Phylloceratidae are probably derived from the Late Triassic Discophyllitidae by increasing the sutural complexity and evolving involute coiling. The Discophyllitidae in tern have their origin in the Ussuritidae, also known as the Monophyllitidae. The Phylloceratidae gave rise at or near the beginning of the Jurassic to the ancestral Lytoceratina, the early Lower Jurassic Peluroacanthitidae and Ectocentridae. The Phyloceratidae also gave rise at or near the beginning of the Jurassic to the Psiloceratoidea which unites families of the Early Jurassic Ammonitina. Other Jurassic Ammonitina are derived from the Lytoceratina. Later, phylloceratids are said to have given rise to Cretaceous Ammonitina included in the Desmoceratoidea, Hoplitoidea, and Acanthoceratoidea. Kingdom: Animalia Pylum: Mollusca Class: Cephalopoda Order: †Ammonitida Family: †Phylloceratidae Genus: †Holcophylloceras

Holcophylloceras mediterraneum Ammonite Phlycticeras sp. Ammonite Bajocian, Morocco Jurassic period ( 201.3 -145 million years ago) Phylloceratidae is the predominant family of the Phylloceratina with some 15 or more genera found in rocks ranging from the Lower Jurassic to the Upper Cretaceous. Members of the Phylloceratidae are characterized by smooth, involute shells with very thin walls. Many are covered with fine growth lines but are usually without ribbing. Sutures are complex with the major and minor branches of the saddles with phylloid or spatulate endings. The Phylloceratidae are probably derived from the Late Triassic Discophyllitidae by increasing the sutural complexity and evolving involute coiling. The Discophyllitidae in tern have their origin in the Ussuritidae, also known as the Monophyllitidae. The Phylloceratidae gave rise at or near the beginning of the Jurassic to the ancestral Lytoceratina, the early Lower Jurassic Peluroacanthitidae and Ectocentridae. The Phyloceratidae also gave rise at or near the beginning of the Jurassic to the Psiloceratoidea which unites families of the Early Jurassic Ammonitina. Other Jurassic Ammonitina are derived from the Lytoceratina. Later, phylloceratids are said to have given rise to Cretaceous Ammonitina included in the Desmoceratoidea, Hoplitoidea, and Acanthoceratoidea. Kingdom: Animalia Pylum: Mollusca Class: Cephalopoda Order: †Ammonitida Family: †Phylloceratidae Genus: †Holcophylloceras

Hildoceras sp. Ammonite Bajocian, Morocco Jurassic period ( 201.3 -145 million years ago) Hildoceras is a genus of ammonite from the Jurassic era in the family Hildoceratidae. The shells are characterized by a narrow discoidal evolute shape, keeled venter, concave ribs along the outer flanks, and a shallow spiral goove running along smooth inner flanks. Whorls slightly overlap, cross sections are compressed. The ventral keel is bordered on either side by a shallow groove. The genus was named by Alpheus Hyatt after Saint Hilda in 1876. Hildoceras bifrons is an extinct species of ammonite in the family Hildoceratidae. It dates from about 175 million years ago in the Early Jurassic when it was both widespread and common. Fossils have been found in North Africa and Europe, including several regions of England. Kingdom: Animalia Phylum: Mollusca Class: Cephalopoda Order: †Ammonitida Family: †Hildoceratidae Genus: †Hildoceras

Hildoceras sp. Ammonite Bajocian, Morocco Jurassic period ( 201.3 -145 million years ago) Hildoceras is a genus of ammonite from the Jurassic era in the family Hildoceratidae. The shells are characterized by a narrow discoidal evolute shape, keeled venter, concave ribs along the outer flanks, and a shallow spiral goove running along smooth inner flanks. Whorls slightly overlap, cross sections are compressed. The ventral keel is bordered on either side by a shallow groove. The genus was named by Alpheus Hyatt after Saint Hilda in 1876. Hildoceras bifrons is an extinct species of ammonite in the family Hildoceratidae. It dates from about 175 million years ago in the Early Jurassic when it was both widespread and common. Fossils have been found in North Africa and Europe, including several regions of England. Kingdom: Animalia Phylum: Mollusca Class: Cephalopoda Order: †Ammonitida Family: †Hildoceratidae Genus: †Hildoceras

Emileia sp. Ammonite Bajocian, Morocco Jurassic period ( 201.3 -145 million years ago) Emileia is an extinct genus from a well-known class of fossil cephalopods, the ammonites, that lived during the early part of the Bajocian. Emileiais a large form with fine ribbing that includes may secondaries. It begins as a barrel shaped cadicone, with an eccentric, more or less smooth body chamber. Emileia is included in the family Otoitidae and superfamily Stephanoceratoidea of the Ammonitina. Kingdom: Animalia Pylum: Mollusca Class: Cephalopoda Order: †Ammonitida Family: †Otoitidae Genus: †Emileia

Emileia sp. Ammonite Bajocian, Morocco Jurassic period ( 201.3 -145 million years ago) Emileia is an extinct genus from a well-known class of fossil cephalopods, the ammonites, that lived during the early part of the Bajocian. Emileiais a large form with fine ribbing that includes may secondaries. It begins as a barrel shaped cadicone, with an eccentric, more or less smooth body chamber. Emileia is included in the family Otoitidae and superfamily Stephanoceratoidea of the Ammonitina. Kingdom: Animalia Pylum: Mollusca Class: Cephalopoda Order: †Ammonitida Family: †Otoitidae Genus: †Emileia

Cardioceras sp. Ammonite Bajocian, Morocco Jurassic period ( 201.3 -145 million years ago) Cardioceras is an extinct ammonite genus belonging to the family Cardioceratidae. These fast-moving nektonic carnivores lived during the Jurassic period, Oxfordian age. Shells of Cardioceras species can reach a diameter of 20–25 millimetres (0.79–0.98 in). The shape is circular, with ribs and a prominent ridge along the dorsal edge. Kingdom: Animalia Pylum: Mollusca Class: Cephalopoda Order: †Ammonitida Family: †Cardioceratidae Genus: †Cardioceras

Cardioceras sp. Ammonite Bajocian, Morocco Jurassic period ( 201.3 -145 million years ago) Cardioceras is an extinct ammonite genus belonging to the family Cardioceratidae. These fast-moving nektonic carnivores lived during the Jurassic period, Oxfordian age. Shells of Cardioceras species can reach a diameter of 20–25 millimetres (0.79–0.98 in). The shape is circular, with ribs and a prominent ridge along the dorsal edge. Kingdom: Animalia Pylum: Mollusca Class: Cephalopoda Order: †Ammonitida Family: †Cardioceratidae Genus: †Cardioceras

Grallator (Theropod track) slab SITE LOCATION: Portland Formation of Connecticut TIME PERIOD: Jurassic Period (199.6 to 145.5 million years ago) Data: The tracks measure roughly 4 x 2.5 and 3.25 x 2.25 inches. Judging from the size difference, it appears that both tracks came from two different individuals, rather than a single Trackway. Grallator is an ichnogenus (form taxon based on footprints) which covers a common type of small, three-toed print made by a variety of bipedal theropod dinosaurs. Grallator-type footprints have been found in formations dating from the late Triassic through to the early Cretaceous periods. They are found in the United States, Canada, Europe, Australia and China but are most abundant on the east coast of North America, especially the Triassic and Early Jurassic formations of the northern part of the Newark Supergroup.[1][2] The name Grallator translates into "stilt walker", although the actual length and form of the trackmaking legs varied by species, usually unidentified. The related term "Grallae" is an ancient name for the presumed group of long-legged wading birds, such as storks and herons. These footprints were given this name by their discoverer, Edward Hitchcock, in 1858. Grallator footprints are characteristically three-toed (tridactyl) and range from 5 to 15 centimeters (or 2 to 6 inches) long. Though the tracks show only three toes, the trackmakers likely had between four and five toes on their feet. While it is usually impossible to match these prints with the exact dinosaur species that left them, it is sometimes possible to narrow down potential trackmakers by comparing the proportions in individual Grallator ichnospecies with known dinosaurs of the same formation. For example, Grallator tracks identified from the Yixian Formation may have been left by Caudipteryx. These footprints were likely made by an unidentified, primitive dinosaur similar to Coelophysis. Ichnoclass: Reptilipedia Ichnocohort: Theropodipedia Ichnofamily: †Grallatoridae Ichnogenus: †Grallator

Grallator (Theropod track) slab SITE LOCATION: Portland Formation of Connecticut TIME PERIOD: Jurassic Period (199.6 to 145.5 million years ago) Data: The tracks measure roughly 4 x 2.5 and 3.25 x 2.25 inches. Judging from the size difference, it appears that both tracks came from two different individuals, rather than a single Trackway. Grallator is an ichnogenus (form taxon based on footprints) which covers a common type of small, three-toed print made by a variety of bipedal theropod dinosaurs. Grallator-type footprints have been found in formations dating from the late Triassic through to the early Cretaceous periods. They are found in the United States, Canada, Europe, Australia and China but are most abundant on the east coast of North America, especially the Triassic and Early Jurassic formations of the northern part of the Newark Supergroup.[1][2] The name Grallator translates into "stilt walker", although the actual length and form of the trackmaking legs varied by species, usually unidentified. The related term "Grallae" is an ancient name for the presumed group of long-legged wading birds, such as storks and herons. These footprints were given this name by their discoverer, Edward Hitchcock, in 1858. Grallator footprints are characteristically three-toed (tridactyl) and range from 5 to 15 centimeters (or 2 to 6 inches) long. Though the tracks show only three toes, the trackmakers likely had between four and five toes on their feet. While it is usually impossible to match these prints with the exact dinosaur species that left them, it is sometimes possible to narrow down potential trackmakers by comparing the proportions in individual Grallator ichnospecies with known dinosaurs of the same formation. For example, Grallator tracks identified from the Yixian Formation may have been left by Caudipteryx. These footprints were likely made by an unidentified, primitive dinosaur similar to Coelophysis. Ichnoclass: Reptilipedia Ichnocohort: Theropodipedia Ichnofamily: †Grallatoridae Ichnogenus: †Grallator

Grallator (Theropod track) slab SITE LOCATION: Portland Formation of Connecticut TIME PERIOD: Jurassic Period (199.6 to 145.5 million years ago) Data: The tracks measure roughly 4 x 2.5 and 3.25 x 2.25 inches. Judging from the size difference, it appears that both tracks came from two different individuals, rather than a single Trackway. Grallator is an ichnogenus (form taxon based on footprints) which covers a common type of small, three-toed print made by a variety of bipedal theropod dinosaurs. Grallator-type footprints have been found in formations dating from the late Triassic through to the early Cretaceous periods. They are found in the United States, Canada, Europe, Australia and China but are most abundant on the east coast of North America, especially the Triassic and Early Jurassic formations of the northern part of the Newark Supergroup.[1][2] The name Grallator translates into "stilt walker", although the actual length and form of the trackmaking legs varied by species, usually unidentified. The related term "Grallae" is an ancient name for the presumed group of long-legged wading birds, such as storks and herons. These footprints were given this name by their discoverer, Edward Hitchcock, in 1858. Grallator footprints are characteristically three-toed (tridactyl) and range from 5 to 15 centimeters (or 2 to 6 inches) long. Though the tracks show only three toes, the trackmakers likely had between four and five toes on their feet. While it is usually impossible to match these prints with the exact dinosaur species that left them, it is sometimes possible to narrow down potential trackmakers by comparing the proportions in individual Grallator ichnospecies with known dinosaurs of the same formation. For example, Grallator tracks identified from the Yixian Formation may have been left by Caudipteryx. These footprints were likely made by an unidentified, primitive dinosaur similar to Coelophysis. Ichnoclass: Reptilipedia Ichnocohort: Theropodipedia Ichnofamily: †Grallatoridae Ichnogenus: †Grallator