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706 results for “Late Jurassic”
Figure 10. Haldanodon exspectatus, Gui Mam 3011 in Postcranial anatomy of Haldanodon exspectatus (Mammalia, Docodonta) from the Late Jurassic (Kimmeridgian) of Portugal and its bearing for mammalian evolution
Figure 10. Haldanodon exspectatus, Gui Mam 3011. Left ilium in: A, lateral and B, medial aspects (stereo-pairs).
Figure 9 in Postcranial anatomy of Haldanodon exspectatus (Mammalia, Docodonta) from the Late Jurassic (Kimmeridgian) of Portugal and its bearing for mammalian evolution
Figure 9. Haldanodon exspectatus, growth series of left humeri in anterior view. A, Gui Mam 30/79; B, Gui Mam 3001, proximal head partially missing; C, Gui Mam 3009; D, Gui Mam 3010 (reverted), proximal head partially missing; E, Gui Mam 3007, proximal part of shaft and head missing; F, Gui Mam 3002, distal portion of humerus.
Figure 7. Haldanodon exspectatus, Gui Mam 30 in Postcranial anatomy of Haldanodon exspectatus (Mammalia, Docodonta) from the Late Jurassic (Kimmeridgian) of Portugal and its bearing for mammalian evolution
Figure 7. Haldanodon exspectatus, Gui Mam 30/79. Right forelimb as originally preserved, with (from right to left) humerus in anterior view (distal end pointing upwards), radius in an anterior view, and ulna in a lateral aspect. entepic., entepicondyle; fac., facet.
Figure 6 in Postcranial anatomy of Haldanodon exspectatus (Mammalia, Docodonta) from the Late Jurassic (Kimmeridgian) of Portugal and its bearing for mammalian evolution
Figure 6. Reconstruction of the right scapulocoracoid of Haldanodon exspectatus based on specimens Gui Mam 30/79, Gui Mam 3000, and Gui Mam 3008. A, lateral view; B, medial view; C–E, cross sections of scapula with section planes marked. Suture between scapula and coracoid in dorsal part of glenoid. ant., anterior; infrasp., infraspinous; marg., margin; post., posterior; postsc., postscapular.
Figure 5. Haldanodon exspectatus, Gui Mam 3008 in Postcranial anatomy of Haldanodon exspectatus (Mammalia, Docodonta) from the Late Jurassic (Kimmeridgian) of Portugal and its bearing for mammalian evolution
Figure 5. Haldanodon exspectatus, Gui Mam 3008. Right scapulocoracoid in: A, lateral; B, anterior and C, medial views (stereo-pairs). infrasp., infraspinous.
Figure 4. Haldanodon exspectatus, Gui Mam 3000 in Postcranial anatomy of Haldanodon exspectatus (Mammalia, Docodonta) from the Late Jurassic (Kimmeridgian) of Portugal and its bearing for mammalian evolution
Figure 4. Haldanodon exspectatus, Gui Mam 3000. Left scapulocoracoid in: A, lateral; B, caudal and C, medial views. ant. mar., anterior margin; 'infrasp. fo.', 'infraspinous fossa'.
Figure 2. Haldanodon exspectatus, Gui Mam 30 in Postcranial anatomy of Haldanodon exspectatus (Mammalia, Docodonta) from the Late Jurassic (Kimmeridgian) of Portugal and its bearing for mammalian evolution
Figure 2. Haldanodon exspectatus, Gui Mam 30/79. Left thoracal rib in a caudal aspect (posterior view).
Figure 3. Haldanodon exspectatus, Gui Mam 30 in Postcranial anatomy of Haldanodon exspectatus (Mammalia, Docodonta) from the Late Jurassic (Kimmeridgian) of Portugal and its bearing for mammalian evolution
Figure 3. Haldanodon exspectatus, Gui Mam 30/79. A and B, right scapulocoracoid in: A, lateral and B, medial views. C–E, left scapulocoracoid in: C, lateral; D, caudal and E, medial views.
Figure 8 in A Late Jurassic salamander (Amphibia: Caudata) from the Morrison Formation of North America
Figure 8. Phylogenetic tree showing suggested relationship of Iridotriton within Caudata. Node 1: Caudata; Node 2: Urodela (minimally ch. 9–12 in Iridotriton, see text); Node 3: Cryptobranchoidea; Node 4: stem-salamandroids (minimally ch. 15 in Iridotriton); Node 5: unnamed clade (Evans & Milner, 1996; ch. 1, 3–4); Node 6: Salamandroidea (minimally ch. 8).
Figure 7 in A Late Jurassic salamander (Amphibia: Caudata) from the Morrison Formation of North America
Figure 7. Iridotriton hechti gen. et sp. nov., DINO 16453b. Detail of caudal vertebra with spinal nerve foramen. Abbreviations: p.zy, posterior zygapophyses; sp.f, spinal nerve foramen. Scale bar = 1 mm.
Figure 3 in A Late Jurassic salamander (Amphibia: Caudata) from the Morrison Formation of North America
Figure 3. Iridotriton hechti gen. et sp. nov., DINO 16453b. Abbreviations: CaS.V, caudosacral vertebra; Ca.V, caudal vertebra; L.Fe, left femur; L.Fi, left fibula; L.Il, left ilium; Pe, elements of pes; Ps, presacral vertebra; Rb.b, ribbearer; Sa.rb, sacral rib; Sa.V, sacral vertebra; sp.f, spinal nerve foramen; Ta, tarsal; L.Ti, left tibia; tr, trochanter. Scale bar = 1 mm.
Figure 4 in A Late Jurassic salamander (Amphibia: Caudata) from the Morrison Formation of North America
Figure 4. Iridotriton hechti gen. et sp. nov., DINO 16453a, digital reconstruction of dorsal surface based on highresolution computed tomography. Abbreviations: At, atlas; C, C1-2, carpals; L.An, left angular; L.D, left dentary; L.H, left humerus; L.Mx, left maxilla; L.Oc, left otic capsule; L.Pmx, left premaxilla; L.Pra, left prearticular; L.Prf, left prefrontal; L.Ra, left radius; L.ScC, left scapulocoracoid; L.Sq, left squamosal; Ph, phalanx; Ps, parasphenoid; Q, quadrate; R.D, right dentary; R.H, right humerus; R.Mx, right maxilla; R.Oc, right otic capsule (small arrow points to foramen for endolymphatic duct); R.P, right parietal; R.Pmx, right premaxilla; R.Pt, right pterygoid; R.Ra, right radius; R.ScC, right scapulocoracoid; R.Sq, right squamosal; Ul.I, fused ulnare and intermedium. Scale bar = 1 mm.
Figure 5 in A Late Jurassic salamander (Amphibia: Caudata) from the Morrison Formation of North America
Figure 5. Iridotriton hechti gen. et sp. nov., DINO 16453a, digital reconstruction of ventral surface of specimen based on high-resolution computed tomography. Abbreviations: C, C2-3, carpals; Fr, frontal; L.D, left dentary; L.H, left humerus; L.Pt, parts of left pterygoid; L.Ra, left radius; L.ScC, left scapulocoracoid; Ph, phalanges; Ps, parasphenoid; Q, quadrate; R.An, right angular; R.D, right dentary; R.H, right humerus; R.Mx, right maxilla; R.Oc, right otic capsule; R.P, right parietal; R.Pmx, right premaxilla; R.Ra, right radius; R.ScC, scapulocoracoid (small arrow points to supracoracoid foramen); R.Ul, right ulna; Sp, sphenethmoid; Ul.I, fused ulnare and intermedium; V, vomer;? unidentified fragment. Scale bar = 1 mm.
Figure 2 in A Late Jurassic salamander (Amphibia: Caudata) from the Morrison Formation of North America
Figure 2. Iridotriton hechti gen. et sp. nov., DINO 16453a. Abbreviations: At, atlas; cr.V, crista ventralis humeri; d.hd, distal head of humerus; L.H, left humerus; L.Ra, left radius; L.ScC, left scapulocoracoid; Ph + Mc, phalanges and metacarpals; Ps, presacral vertebra; Rb, rib; Rb.b, rib-bearer; R.D, right dentary; R.H, right humerus; R.Oc, right otic capsule; R.ScC, right scapulocoracoid; Ul-l, fused ulnare and intermedium; Un, ungual phalanx. Scale bar = 1 mm.
Figure 1 in A Late Jurassic salamander (Amphibia: Caudata) from the Morrison Formation of North America
Figure 1. Iridotriton hechti gen. et sp. nov., holotype. Main figure (left) DINO 16453a; adjoining figure (right), DINO 16453b. Scale bar = 1 mm.
Figure 16 in New remarkable Late Jurassic teleosts from southern Germany: Ascalaboidae n. fam., its content, morphology, and phylogenetic relationships
Figure 16. Ascalabos voithii. Restoration in lateral view, updated from Arratia (1997).
Data from: Assessing temporal transition between microgranular and hyaline tests of calcareous microplankton during the Late Jurassic
<p>Calcareous microplankton increased in abundance during the latest Jurassic, coinciding with the increase in abundance of calcareous nannofossils and with the onset of deposition of pelagic calcareous oozes. However, the timing and causes of the shift from microgranular tests of the earliest microplankton (chitinoidellids) to hyaline tests of calpionellids are obscured because the ultrastructure of two-layered praecalpionellids that occur during the Tithonian is poorly documented. Here, we investigate the ultrastructure of chitinoidellids and praecalpionellids from Upper Tithonian deposits in the Western Carpathians. We show that (1) the chitinoidellid microgranular layer is formed by elongated, euhedral, densely-packed, nanometric needles rather than by fragments of calcareous nannofossils, (2) two-layered chitinoidellids (<em>Semichitinoidella</em>) are formed by an internal microgranular layer (identical to that of <em>Chitinoidella</em>) and by an external hyaline prismatic layer, and (3) two-layered <em>Praetintinnopsella</em> exhibits an internal hyaline layer (with densely-packed, equant microcrystals) and an external layer formed by a dark organic rim. The external layer in <em>Praetintinnopsella</em> thus does not have any relation to the microgranular layer in chitinoidellids and the external hyaline layer of <em>Semichitinoidella</em> is not equivalent in structure to the hyaline layer of <em>Praetintinnopsella</em>. As both single-layer and two-layered chitinoidellids appear prior to the first appearance of <em>Praetintinnopsella</em> but still co-occur with this genus in the lowermost Upper Tithonian deposits, the origin of two-layered <em>Praetintinnopsella</em> either reflects a major transformation in biomineralization towards larger and more packed crystals during their earlier divergence from the chitinoidellid lineage or an origination of two-layered tests with a hyaline layer from an independent non-chitinoidellid ancestor.</p>
FIGURE 1 in Petrodactyle wellnhoferi gen. et sp. nov.: A new and large ctenochasmatid pterosaur from the Late Jurassic of Germany
FIGURE 1. Photo of specimen LF 2809, a new large ctenochasmatid pterosaur. Scale bar is 10 cm.
A new Archaeopteryx from the lower Tithonian Mörnsheim Formation at Mühlheim (Late Jurassic)
<p>Landmark data for manual unguals of Archaeopteryx and Anchiornis</p>
Fig. 1 in Filling the Corallian gap: New information on Late Jurassic marine reptile faunas from England
Fig. 1. Palaeogeographical map of Mid-Oxfordian in the UK (from Bradshaw et al. 1992 and Coe 1995).
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Allen Brain Atlas
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Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
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